1 "Plants with well-developed cauline leaves; petals yellow (rarely very pale yellow) or orange" 2 1 "Plants with broad leaves restricted to a usually short-lived basal rosette and cauline leaves reduced to bract-like scales (usually appearing leafless); petals white, yellow, pink or red" 415 2 "Ovary glabrous to hairy, lacking peltate scales" 3 2 "Ovary covered with peltate scales" 342 3 "Fertile stamens all on one side of the 2 carpels" 4 3 "Fertile stamens all around, or on opposites sides of, the 2–many carpels" 176 4 "Flowers in one-sided, bracteate spike-like inflorescences" 5 4 "Flowers single or clustered in the leaf axils, not in one-sided, bracteate spike-like inflorescences" 24 5 "Stems and peduncle sparsely to moderately hairy and consisting of at least some fascicled hairs (simple straight or hooked hairs may also be present) or glabrous; stamens 8–18; SW Australia and Pilbara, W.A." 6 5 "Stems and peduncle usually densely hairy (rarely sparsely hairy) and consistenting of only simple, usually brownish or rusty (sometimes whitish) hairs that are straight and appressed and/or spreading or crisped and matted; stamens 12–50; tropical N.T., Qld. & W.A. (Kimberley)" 13 6 "Outer sepals moderately to densely fascicled-hairy, with no or few simple hairs" 7 6 "Outer sepals glabrous to pilose, mostly with simple or hooked hairs (fascicled hairs, when present, a minor component of the indumentum)" 8 7 "Whole plant (young stems, leaves and sepals) densely fascicled-pubescent; stamens 10–12; most staminodes opposite the stamens" "Hibbertia asterella" 7 "Young stems and leaves ±glabrous; stamens 12–16; most staminodes behind the stamens" "Hibbertia capensis" 8 "Abaxial leaf lamina either side of the midrib glabrous" 9 8 "Abaxial leaf lamina either side of the midrib (may be hidden by the recurved margins) densely stellate-pubescent" 10 9 "Abaxial leaf lamina usually exposed between the loosely revolute margins and midrib; inflorescences 2?6-flowered; fertile stamens 9 or 10 with 5?7 staminodes behind and lateral to the fertile stamens" "Hibbertia subglabra" 9 "Abaxial leaf lamina usually hidden between revolute margins and the midrib; inflorescences 1(2)-flowered; fertile stamens 10 with 2 or 3 staminodes lateral to the fertile stamens" "Hibbertia diamesogenos" 10 "Flowers (6–) 8–14 per cincinnus, closely spaced; cincinnus bracts distinctly heteromorphic, each flower (except the lowermost) subtended by a ± linear and a broadly ovate to triangular bract" "Hibbertia spicata" 10 "Flowers (1) 2–6 (–7) per cincinnus, the lowermost at least well separated; cincinnus bracts not distinctly heteromorphic, each flower (except the lowermost) subtended by two ± linear to ovate bracts differing mainly in length" 11 11 "Adaxial leaf lamina and outer sepals quite glabrous" "Hibbertia leptotheca" 11 "Adaxial leaf lamina and/or outer sepals hairy" 12 12 "Adaxial leaf lamina ±glabrous; sepals mostly with hooked hairs" "Hibbertia prolata" 12 "Adaxial leaf lamina pubescent to pilose with simple hairs; sepals with a mix of simple, fascicled and hooked hairs" "Hibbertia polystachya" 13 "Mature leaves with the margin strongly revolute and ± abutting midrib to obscure the abaxial lamina" 14 13 "Mature leaves with the margin not revolute or if so then not abutting the midrib so that some of the abaxial lamina visible between the margins and midrib" 15 14 "Peduncle and calyx with rust-coloured hairs; fertile stamens 18–32; Qld." "Hibbertia arachnoidea" 14 "Peduncle and calyx with whitish to pale brown hairs; fertile stamens c. 16–18; N.T." "Hibbertia muelleri" 15 "Abaxial leaf surface with sparse hooked hairs, glabrescent" "Hibbertia holtzei" 15 "Abaxial leaf surface densely hairy, lacking hooked hairs" 16 16 "Young branches, particularly below inflorescences, with appressed straight simple hairs" 17 16 "Young branches, particularly below inflorescences, with erect to spreading or densely matted straight or crisped simple hairs" 18 17 "Vein reticulum on adaxial leaf surface incompletely visible; inflorescences terminal and axillary, with (2) 3–5 (–6) flowers; fertile stamens 20–26; anthers 2.7–3 mm long; N.T. & Qld." "Hibbertia candicans" 17 "Vein reticulum on adaxial leaf surface visible; inflorescences only terminal, with (6–) 8–12 (–15) flowers; fertile stamens 10–12; anthers 2.1–2.3 mm long; N.T." "Hibbertia dealbata" 18 "Adaxial surface of some or all sepals with with long, straight simple hairs near the basal midrib or throughout" 19 18 "Adaxial surface of all sepals glabrous or with some sparse short hairs below the apex" 20 19 "Young leaves with brown, straight hairs to 1.5 mm long and also shorter matted hairs; adaxial surface of mature leaves bumpy due to many grooves along secondary veins; fertile stamens 13–20; N.T." "Hibbertia fulva" 19 "Young leaves with only brown or whitish crisped matted hairs to 0.2 mm long; adaxial surface of mature leaves smooth, without visible veins apart from the grooved midrib; fertile stamens (28–) 30–42; W.A." "Hibbertia ledifolia" 20 "Mature leaves (0.8–) 1.2–2.5 (–3.2) mm wide, the margins entire; fertile stamens 12–14" "Hibbertia lagarophylla" 20 "Mature leaves > 6 mm wide, the margins enitre or toothed; fertile stamens > 15" 21 21 "Sepals > 11 mm long when flowering" 22 21 "Sepals < 10.5 mm long when flowering" 23 22 "Leaf margin entire; inflorescences (4–) 10–16 (–19)-flowered; bracts ovate to broadly ovate, 8–16 (–24) mm long; NT" "Hibbertia arnhemica" 22 "Leaf margin with 2 or 3 (–5) shallow rounded teeth; inflorescences (2–) 4- or 5-flowered; bracts oblong to lanceolate, (3.5–) 5–9 mm long; Qld" "Hibbertia laurana" 23 "Leaves mostly lanceolate to lanceolate-elliptic (rarely elliptic), the margin entire; inflorescences (4–) 8–12 (–18)-flowered; bracts ovate to lanceolate; fertile stamens 16–25; NT" "Hibbertia brownii" 23 "Leaves oblanceolate to narrowly elliptic, the margin entire or shallowly lobed; inflorescences (3–) 4–7 (–11)-flowered; bracts oblong to oblong-elliptic; fertile stamens (20–) 25–44 (–48); Qld" "Hibbertia banksii" 24 "Ovaries pubescent to villous or with a narrow line of hairs along the suture" 25 24 "Ovaries glabrous" 159 25 "Ovaries glabrous apart from a narrow line of hairs along the suture" "Hibbertia gracilipes" 25 "Ovaries with sparse to dense hairs throughout" 26 26 "Leaves linear, very fine and flexible (> 40× longer than wide); stamens 17–25; staminodes numerous, forming a row behind the stamens" "Hibbertia hooglandii" 26 "Leaves various, if linear then not very fine and < 40× as long as wide; if staminodes form a row behind the carpels then stamens < 17" 27 27 "Stamens curved (like a hand of bananas) over the styles, which are parallel and forward-directed from the carpels" 28 27 "Stamens erect, not curving over the styles, which are divergent then erect from the carpels" 91 28 "Flowers distinctly (sometimes shortly) pedicellate" 29 28 "Flowers sessile or very nearly so" 76 29 "Leaves distinctly pungent-pointed" 30 29 "Leaves obtuse to acute or apiculate but not pungent" 41 30 "Sepals with scales or scale-like fascicled hairs" 31 30 "Sepals glabrous or with hairs, not scales" 32 31 "Leaf with recurved spiny tip" "Hibbertia eatoniae" 31 "Leaf with straight spiny tip" "Hibbertia lepidocalyx" 32 "Leaf tip recurved. Carpels 4-ovulate" "Hibbertia ancistrophylla" 32 "Leaf tip straight, not recurved. Carpels 2-ovulate" 33 33 "Sepals and/or leaves with hooked hairs (sometimes sparse)" 34 33 "Hooked hairs absent" 39 34 "Pedicels and branchlets fascicled-hairy; primary bract pungent-pointed" "Hibbertia hamulosa" 34 "Pedicels and branchlets glabrous or nearly so; primary bract acute to attenuate, not pungent-pointed" 35 35 "Sepals spine-tipped; plants erect, the flowering stems often little-branched" "Hibbertia abyssus" 35 "Sepals obtuse to acute but not spine-tipped; plants much-branched, often cushion-like but sometimes erect and openly branched" 36 36 "Lateral edges of leaf abaxial midrib with a line of distinct, robust (though small) tubercles (visible in leaves where the margin is slightly retracted from the midrib, but possibly requiring dissection to reveal); sepals usually glabrous or nearly so" 37 36 "Lateral edges of leaf abaxial midrib smooth or minutely papillate, if the latter then the papillae grading to minute hairs on the abaxial lamina surface; sepals with numerous uncinate hairs at least in the lower half" 38 37 "Midrib robust and protuberant above the level of the lamina margins; bract subtending the flower ovate" "Hibbertia juniperina" 37 "Midrib usually rather weak (sometimes robust), sunken below or at most level with the margins, which often recurve to each other; bract subtending the flower linear to narrowly triangular" "Hibbertia callida" 38 "Leaves adaxially glabrous except when very young (when sometimes bearing a few hooked hairs); abaxial leaf lamina (may require dissection to reveal) minutely pubescent" "Hibbertia simkiniae" 38 "Leaves with scattered hooked hairs on the adaxial surface and lateral flanks until very mature; abaxial leaf lamina glabrous" "Hibbertia acerosa" 39 "Sepals quite glabrous; flowering stems stout, little-branched, thickly clothed with erect, overlapping leaves" "Hibbertia atrichosepala" 39 "Sepals with hairs, at least on the margins; flowering stems branched, not thickly clothed with erect, overlapping leaves" 40 40 "Sepals densely, evenly and finely fascicled; leaves distant" "Hibbertia turleyana" 40 "Sepals glabrous to moderately minutely fascicled; leaves close-set, usually spreading at right angles to the stem" "Hibbertia ulicifolia" 41 "Staminodes absent" 42 41 "Staminodes present" 57 42 "Leaves linear, the margins strongly revolute and usually obscuring the abaxial surface; WA" 43 42 "Leaves narrowly elliptic to obovate or almost orbicular, the margins not strongly revolute so the abaxial surface is exposed; Qld, NSW, Tas, Vic, SA" 46 43 "Leaves and sepals glabrous" "Hibbertia gracilipes" 43 "Leaves and/or sepals with hairs" 44 44 "Primary bract broadly ovate, 1–1.2 mm long" "Hibbertia humilis" 44 "Primary bract narrowly triangular, >= 1.5 mm long" 45 45 "Leaves thick-textured, smooth, ± glabrous except for distinct, short, whitish hairs on the petiole" "Hibbertia ancistrotricha" 45 "Leaves rather thin-textured, usually coarsely tuberculate, often with long, sparse hairs, if glabrous then without a distinctly different indumentum on the petiole" "Hibbertia parvula" 46 "Undersurface of leaf glabrous or with sparse simple hairs only (fascicled hairs if present restricted to the midrib)" 47 46 "Undersurface of leaf fascicled-hairy, with or without longer simple hairs" 50 47 "Leaves (at least when young) and calyx with minute but robust, tubercle-based radiating, fascicled hairs only" "Hibbertia radians" 47 "Leaves and calyx with straight or hooked, simple hairs (sometimes mixed with fascicled hairs)" 48 48 "Adaxial surface of mature leaves with distinctly appressed simple hairs" "Hibbertia appressa" 48 "Adaxial surface of mature leaves glabrous or with hairs that are not distinctly appressed" 49 49 "Stamens 9–12 (–15); sepals with numerous minute hooked hairs" "Hibbertia decumbens" 49 "Stamens (3) 5–7 (–9); sepals with a mix of minute fascicled and longer simple hairs" "Hibbertia empetrifolia" 50 "Petals 1.3–2.5 mm long, shorter than sepals; styles overtopping anthers; branches without simple hairs; upper and lower leaf surfaces with ± equal covering of fascicled hairs" "Hibbertia pallidiflora" 50 "Petals > 2.5 mm long, longer than calyx; styles ± equal to anthers; plants otherwise not as above" 51 51 "Bract subtending flower to half as long as calyx" 52 51 "Bract subtending flower two-thirds to as long as calyx" 54 52 "Stamens (2–) 4–6 (–9)" "Hibbertia aspera" 52 "Stamens (9) 10–12 (–15)" 53 53 "Upper leaf surface with radial fascicled hairs only; south-western Victoria" "Hibbertia truncata" 53 "Upper leaf surface with simple and antrorse fascicled hairs; southern NSW, eastem Victoria" "Hibbertia notabilis" 54 "Outer surface of outer sepals with fascicled hairs only" "Hibbertia cinerea" 54 "Outer surface of outer sepals with simple over fascicled hairs" 55 55 "Upper leaf surface and outer sepals covered with simple rarely fascicled hairs" "Hibbertia hirta" 55 "Upper leaf surface and outer sepals with simple over fascicled hairs" 56 56 "Anthers truncate or emarginate; simple hairs on branches, leaves and calyx to 1 mm long" "Hibbertia hirticalyx" 56 "Anthers with a terminal appendage; simple hairs on branches, leaves and calyx 1–2 mm long" "Hibbertia rhynchocalyx" 57 "Leaf margins tightly recurved to the prominent midrib, the true margin visible as a pair of pale strips either side of the midrib, at least in young leaves" 58 57 "Leaf margins either not tightly recurved to the midrib or, if so then the true margins hidden and not visible as pale strips" 63 58 "Outer sepals and pedicels glabrous (except sometimes a minute ciliate fringe on the sepals); sepals prominently pale-margined (often glistening when dry)" "Hibbertia lineata" 58 "Outer sepals moderately to densely pubescent usually with at least some hooked hairs, often also with fascicled ones; pedicels glabrous or sparsely pubescent with fascicled hairs; sepals not prominently pale-margined" 59 59 "Young stems, abaxial surface of petioles, and pedicels glabrous" "Hibbertia depilipes" 59 "Young stems sparsely to moderately pubescent; abaxial surface of petioles moderately to densely and minutely fascicled-hairy; pedicels sparsely to moderately fascicled-hairy" 60 60 "Leaves rounded in transverse section, usually distinctly tuberculate with evenly scattered tubercles bearing radially fascicled hairs at least on young leaves; sepals with distinctly thickened midribs" "Hibbertia verrucosa" 60 "Leaves rounded or angled in transverse section (± flat-topped and with an angle at the apparent leaf margin), smooth or with a row of tubercles along the angle, these bearing forward-directed, simple or few-branched hairs when young; sepals with thickened bases but without distinctly thickened midribs" 61 61 "Sepals lacking hooked hairs (sparsely and minutely fascicled-hairy)" "Hibbertia papillata" 61 "Sepals with at least some hooked hairs" 62 62 "Leaves (1.2–) 2–4 (–8) mm long, usually recurved and retrorse (occasionally longer, straighter and more spreading); usually weak plants often with slender stems ascending through other vegetation; sepals with short hooked hairs usually restricted to or more common at the sepal bases" "Hibbertia microphylla" 62 "Leaves (5–) 6–12 mm long, spreading, ±straight except at the apex; erect plants with robust stems; sepals evenly covered with numerous hooked hairs throughout" "Hibbertia polyancistra" 63 "Staminodes lateral to, opposite and behind the stamens" "Hibbertia cockertoniana" 63 "Staminodes all lateral to, or lateral to and opposite, the stamens" 64 64 "Sepal indumentum predominantly with fascicled hairs" 65 64 "Sepals glabrous or with predominantly simple hairs (sometimes with obscure fascicled hairs beneath abundant simple hairs)" 68 65 "Leaves narrowly elliptic to obovate, the undersurface clearly visible" 66 65 "Leaves linear, the margins tightly revolute to the midrib and obscuring the undersurface" 67 66 "Leaf upper surface with twinned tubercle-based hairs; ovules 4 per carpel" "Hibbertia furfuracea" 66 "Leaves upper surface with fascicled and/or hooked hairs; ovules 2 per carpel" "Hibbertia hypericoides" 67 "Sepals sparsely to moderately pubescent with minute, fascicled hairs, the midribs not prominent; leaves minutely papillate but not tuberculate" "Hibbertia papillata" 67 "Sepals moderately to densely pubescent with coarse, tubercle-based fascicled hairs usually mixed with short, often retrorse, uncinate hairs, the midribs at least on the outer sepals thick and prominent; leaves usually coarsely tuberculate" "Hibbertia verrucosa" 68 "Sepals glabrous to sparsely hairy" 69 68 "Sepals abundantly pilose" 73 69 "Leaf undersurface, between the midrib and the recurved margins, densely fascicled-hairy" "Hibbertia hypericoides" 69 "Leaf undersurface, between the midrib and the recurved margins, glabrous or sparsely simple-hairy" 70 70 "Sepals with sparse long hairs; floral bract linear to narrow elliptic" "Hibbertia diamesogenos" 70 "Sepals glabrous or nearly so (inner sepals with minute fascicled hairs); floral bract broadly ovate to triangular" 71 71 "Sepals c. 3 mm long; fertile stamens 3-5; staminodes 4(5), behind the fertile stamens" "Hibbertia micrantha" 71 "Sepals > 3.5 mm long; fertile stamens 10-15; staminodes 1?3, either side of the fertile stamens" 72 72 "Leaves and branchlets with spreading tubercle-based hairs, at least when young; ovules 2 per carpel" "Hibbertia avonensis" 72 "Leaves and branchlets quite glabrous; ovules 3 or 4 per carpel" "Hibbertia stenophylla" 73 "Leaves elliptic to obovate, flat with scarcely recurved margins" "Hibbertia silvestris" 73 "Leaves linear with strongly recurved margins" 74 74 "Leaves and flowers distinctly fasciculate; pedicels and young stems glabrous; leaf undersurface (often obscured between the midrib and the recurved margins) densely fascicled-hairy" "Hibbertia fasciculiflora" 74 "Leaves and flowers not distinctly fasciculate; pedicels and young stems pubescent; leaf undersurface (often obscured between the midrib and the recurved margins), glabrous to sparsely simple-hairy" 75 75 "Sepals sparsely to moderately pubescent with ± colourless hairs" "Hibbertia diamesogenos" 75 "Sepals abundantly pilose with white hairs" "Hibbertia propinqua" 76 "Leaf apex obtuse to acute but not pungent" 77 76 "Leaf apex distinctly pungent" 80 77 "Bracts conspicuous, broad, brown" "Hibbertia crassifolia" 77 "Bracts inconspicuous or leaf-like" 78 78 "Sepals completely glabrous; ovules 3 or 4 per carpel" "Hibbertia stenophylla" 78 "Sepals with sparse to dense tubercle-based fascicled hairs; ovules 2 per carpel" 79 79 "Young branchlets glabrous except for sparse, short, crisped white hairs obscured in the leaf axils; adaxial leaf surface obscurely tuberculate, glabrous; leaf apex obtuse, without a tuft of hairs, more or less straight" "Hibbertia robur" 79 "Young branchlets moderately to densely fascicled-hairy; adaxial leaf surface with scattered tubericle-based fascicled hairs and sometimes with scattered simple or hooked hairs; leaf apex obtuse and terminated by a tuft of minute hairs (especially when young), slightly to moderately recurved" "Hibbertia verrucosa" 80 "Fertile stamens 5" 81 80 "Fertile stamens 8–22" 83 81 "Staminodes absent" "Hibbertia mucronata" 81 "Staminodes 5–10, outside the stamens" 82 82 "Leaves 10–15 mm long, tapering gradually to a straight, pungent point; sepals pale grey-pilose" "Hibbertia charlesii" 82 "Leaves 2–6 (–11) mm long, tapering abruptly to a short, excentric mucro; sepals brownish pubescent" "Hibbertia pachyphylla" 83 "Leaf apex distinctly recurved" "Hibbertia ancistrophylla" 83 "Leaf apex straight" 84 84 "Stamens 15–22" 85 84 "Stamens 8–11" 88 85 "Stems mostly glabrous (except for intrapetiolar tufts of hairs); WA" "Hibbertia proberae" 85 "Stems densely tomentose with fascicled hairs; QLD" 86 86 "Staminodes absent" "Hibbertia aristisepala" 86 "Staminodes 2–5, lateral to the fertile stamens" 87 87 "Leaves with abaxial midrib ± level with the revolute margins; sepals lacking hooked, simple hairs; primary bract linear, 3.6–4.2 mm long; fertile stamens c. 22" "Hibbertia arguta" 87 "Leaves with abaxial midrib prominently bulging above the revolute margins; sepals with some minute hooked, simple hairs on the outer surface (as well as other hair types); primary bract lanceolate, 5–5.4 mm long; fertile stamens c. 16" "Hibbertia crassinervis" 88 "Sepals with simple hairs throughout" "Hibbertia axillibarba" 88 "Sepals glabrous or with fascicled hairs" 89 89 "Midrib of lower leaf surface enlarged, prominent and protruding beyond level of the revolute leaf margins" "Hibbertia carinata" 89 "Midrib of lower leaf surface not unusually enlarged, level with or sunken below the level of the revolute leaf margins" 90 90 "Leaves very thick, almost cylindric 4–12 mm long, tip rounded but with a short hard spine. Sepals 4–7 mm long" "Hibbertia stowardii" 90 "Leaves flat or compressed with recurved margins, mostly 10–25 mm long and gradually tapered at the tip, acute to mucronate. Sepals 6–9 mm long" "Hibbertia aurea" 91 "Flowers sessile or very nearly so" 92 91 "Flowers distinctly pedicellate" 129 92 "Hairs on either young stems, leaves or sepals mostly fascicled (e.g. pseudo-stellate or twinned)" 93 92 "Hairs on young stems, leaves and sepals mostly simple, or plants glabrous" 109 93 "Petals 1 or 2; stamens 1 or 2" "Hibbertia hirsuta" 93 "Petals 5; stamens > 2" 94 94 "Sepals sparsely to densely hairy or rarely glabrescent and at least with sparse hairs at the base of the calyx" 95 94 "Sepals glabrous or with few hairs at the apex" 108 95 "Mature leaves flat or with recurved to revolute margins that do not tightly abut the midrib so the true abaxial leaf surface is mostly to slightly exposed" 96 95 "Mature leaves with the margins strongly revolute and abbutting each other or the midrib so the true abaxial leaf surface is hidden (occasionally some hairs of the abaxial surface visible)" 102 96 "Stamens 18–24, the anthers 2.5–2.8 mm long; QLD" "Hibbertia hendersonii" 96 "Stamens (4–) 5–15 (–22), the anthers (1.4–) 1.5–2 (–2.6) mm long; NSW, SA, TAS, VIC" 97 97 "Cauline leaves with central vein not broadened and scarcely visible unders fascicled hairs" "Hibbertia sessiliflora" 97 "Cauline leaves with central vein broadened and clearly visible" 98 98 "Abaxial midrib of the cauline leaves not visible up to the leaf apex" 99 98 "Abaxial midrib of the cauline leaves distinctly visible up to the leaf apex" 100 99 "Adaxial surface of young cauline leaves with short stiff straight simple hairs" "Hibbertia sericea" 99 "Adaxial surface of young cauline leaves with long fine (often silky) straight simple hairs" "Hibbertia villifera" 100 "Mature cauline leaves with adaxial surface green to dark green with typically moderately to sparsely hairy or nearly glabrous, with mostly straight simple hairs" "Hibbertia platyphylla" 100 "Mature cauline leaves with adaxial surface with a dense indumentum, most hairs very short except for the rare long straight simple hair that wear off with age" 101 101 "Shorts hairs on the adaxial leaf surface radially spreading fascicled hairs with 4 or more arms; NSW, SA, Vic" "Hibbertia crinita" 101 "Short hairs on the adaxial leaf surface predominently bifid (2-armed); NSW" "Hibbertia superans" 102 "Leaf apex distinctly awned or pungent (sometimes with the tip caducous)" "Hibbertia perhamata" 102 "Leaf apex bluntly acute to obtuse, the tip rounded to bluntly mucronate or apiculate (not sharply terminating)" 103 103 "Axils of leaves with an erect tuft of hairs 0.5–2 mm long; leaves and young branches with straight, simple hairs dominant, but also sometimes with fascicled hairs; sepals with straight simple hairs dominant on outer surface" 104 103 "Axils of leaves with an erect tuft of hairs < 0.4 mm long; leaves and young branches sparsely to densely hairy with fascicled hairs dominant or rarely glabrous; sepals with fascicled or simple, hooked hairs dominant on outer surface, particularly toward the base" 105 104 "Sepals without a midrib that is ridged, or if ridged then not extending to sepal base" "Hibbertia riparia" 104 "Sepal midrib with a ridge that extends to the base" "Hibbertia strigosa" 105 "Outer sepals moderately to densely tomentose with large radial fascicled hairs over smaller radial fascicled hairs, the larger hairs with unequal branches (some 3 to 8 times longer than others), the smaller fascicled hairs with branches of subequal length" "Hibbertia setifera" 105 "Outer sepals sparsely to moderately pubescent, typically more towards the base, with short simple, hooked or radial fascicled hairs with branches of subequal length, rarely with the plants completely glabrous" 106 106 "Leaf midrib recessed below the level of the buldging revolute margin; NSW" "Hibbertia stricta" 106 "Leaf midrib at the same level with or buldging above the revolute margins; SA, Vic" 107 107 "Sepal outer surface with hooked hairs on the central ridge; inner sepals elliptic to oblong-oblanceolate, apex acute to obtuse" "Hibbertia incana" 107 "Sepal outer surface without hooked hairs or with scattered hooked hairs, often concentrated near the base; inner sepals ovate to oblong-ovate, apex cuspidate to rounded" "Hibbertia devitata" 108 "Leaf midrib distinctly recessed between revolute margins beneath; flanks of leaves margins rounded" "Hibbertia sulcinervis" 108 "Leaf midrib bulging and overtopping revolute margins; flanks of leaf margins sharp-edged" "Hibbertia oxycraspedota" 109 "Sepals glabrous" 110 109 "Sepals sparsely to densely hairy" 114 110 "Leaves > 3 mm wide, flat or with slightly recurved margins not meeting the midrib beneath" "Hibbertia nitida" 110 "Leaves < 1.5 mm wide, with revolute margins meeting the midrib beneath" 111 111 "Young stems glabrous (except for intrapetiolar tufts of hairs); QLD" "Hibbertia epeduncularis" 111 "Young stems glabrescent with antrorse straight simple hairs, the hairs wearing off with age (intrapetiolar tufts of hairs also present); NSW, SA, VIC" 112 112 "Upper leaf surface glabrescent with antrorse tubercle-based straight simple hairs mainly along the flanks; staminal filaments up to one-third connate basally; SA, VIC" "Hibbertia exutiacies" 112 "Upper leaf surface ± glabrous; staminal filaments scarcely connate basally; NSW" 113 113 "Primary bract 2.2–2.4 mm long; outer sepals not distinctly ridged, pointed to shortly awned" "Hibbertia conferta" 113 "Primary bract 1.1–1.8 mm long; outer sepals with a distinct central ridge that continues to the pungent awn" "Hibbertia aristibracteata" 114 "Young leaves with margins revolute to the midrib and with a distinct terminal awn (sometimes caducous)" 115 114 "Young leaves with margins flat, slightly recurved or revolute, or if the leaves revolute to the midrib, then lacking a distinct transparent terminal awn" 116 115 "Sepals glabrous or with sparse straight, simple hairs; stamens c. 4" "Hibbertia minima" 115 "Sepals with hooked, simple hairs; stamens c. 8" "Hibbertia octandra" 116 "Tufts of hairs present between stamens and petals" 117 116 "Tufts of hairs absent between stamens and petals" 123 117 "Undersurface of leaves usually not exposed between revolute margins and central vein; long hairs up to 0.6 mm long; leaves puberulous to glabrescent" 118 117 "Undersurface of leaves usually exposed between revolute margins and central vein, or long hairs on leaves usually longer than 0.8 mm; leaves villous to appressed-pubescent" 120 118 "Ovary puberulous to glabrescent; leaves narrowly triangular" "Hibbertia puberula" 118 "Ovary villous or tomentose; leaves more or less linear" 119 119 "Outer sepals not recurved and scarcely accrescent; ovary villous" "Hibbertia simulans" 119 "Outer sepals recurved and strongly accrescent; ovary tomentose" "Hibbertia tenuifolia" 120 "Leaves with more or less appressed hairs; South Australia (EP, KI)" "Hibbertia paeninsularis" 120 "Leaves with hairs spreading at ±90; Queensland (Mo), New South Wales (ST, NC, CC)" 121 121 "Leaves (2.4–) 3–4.5 (–7.6) mm broad; central vein not or scarcely raised" "Hibbertia praemorsa" 121 "Leaves 1.1–2.4 mm broad; central vein distinct (raised and/or broadened)" 122 122 "Leaf apex more or less rounded and recurved; indumentum mainly of long hairs with a few shorter ones in between" "Hibbertia patens" 122 "Leaf apex acute becoming obtuse, erect; indumentum of velutinous layer of dense short hairs under few long ones" "Hibbertia superans" 123 "Leaves oblanceolate to oblong, 4–7 mm wide, the margins flat or slightly recurved" "Hibbertia bracteata" 123 "Leaves linear, c. 1 mm wide, the margins tightly recurved to the midrib beneath" 124 124 "Styles red or brown" 125 124 "Styles green" 126 125 "Leaves alternate and arranged along the stem; staminal filaments tightly arranged in a column" "Hibbertia synandra" 125 "Leaves compactly arranged at the end of short branches; staminal filaments loosely or irregularly arranged" "Hibbertia concinna" 126 "Ovaries puberulous and crest glabrous" "Hibbertia puberula" 126 "Ovaries and crest tomentose to villose" 127 127 "Shrublets to 30 cm high, decumbent to sprawling; branchlets with moderate to dense with mainly long fine simple hairs (1.4–1.8 mm long), over twinned or rarely fascicled hairs, tubercles obscure or absent; leaves to 8.5 mm long; stamens 13 (14)" "Hibbertia spanantha" 127 "Shrubs to 1.3 m high, erect or sprawling; branchlets with tubercle-based simple hairs overtopping stalked fascicled hairs, tubercles conspicuous; leaves to 15 mm long; stamens 8–18" 128 128 "Leaves (3–) 4–10 (–15) mm long; primary bract triangular to lanceolate c. 2.6 mm long with a blunt or acute apex; sepals (4.5–) 5–6 mm long;ACT, NSW, Vic." "Hibbertia calycina" 128 "Leaves (3.5–) 10–15 (–18) mm long; primary bract narrowly triangular c. 3 mm long with a long-tapering apex; sepals 4.5–6.5 mm long; Tas." "Hibbertia mathinnicola" 129 "Leaves ericoid (linear or very narrowly ovate, often rather hard-textured and stiff, the margins revolute, abbutting each other or the prominent midrib and completely (or mostly) obscuring the true abaxial leaf surface)" 130 129 "Leaves not ericoid (variously shaped, herbaceous and flexible, flat or with recurved margins that do not tightly abut the midrib so the true abaxial leaf surface is mostly or entirely exposed)" 157 130 "Leaf apex bluntly acute to obtuse, the tip rounded to bluntly mucronate or apiculate (not sharply terminating)" 131 130 "Leaf apex distinctly awned or pungent (sometimes with the tip caducous)" 138 131 "Plants prostrate to decumbent" 132 131 "Plants spreading-erect" 134 132 "Abaxial leaf lamina glabrous; primary bract subtending the calyx; WA" "Hibbertia xenandra" 132 "Abaxial leaf lamina hairy; primary bract partway up the pedicel; NSW, SA" 133 133 "Leaf axils with a distinct tuft of hairs > 0.5 mm long; mature leaves < 3.3 mm long; NSW" "Hibbertia fumana" 133 "Leaf axils without a distinct tuft of hairs or if present then < 0.4 mm long; mature leaves > 3.5 mm long; SA" "Hibbertia tenuis" 134 "Sepals with hooked hairs" "Hibbertia archeri" 134 "Sepals without hooked hairs" 135 135 "Stamens > 14" "Hibbertia convenyana" 135 "Stamens < 13" 136 136 "Sepal outer surface glabrous or glabrescent" "Hibbertia devitata" 136 "Sepal outer surface densely covered with subequal spreading fascicled hairs, or sparsely to moderately covered with apparently stalked spreading fascicled hairs over unstalked hairs" 137 137 "External surface of outer sepals smooth and with dense cover of small fascicled hairs overtopped by scattered spreading larger ones often with basal tubercle but without lumpy projection of leaf tissue" "Hibbertia australis" 137 "External surface of outer sepals lumpy due to scattered, apparently stalked, large spreading fascicled hairs overtopping few scattered smaller ones" "Hibbertia glebosa" 138 "Sepals with distinctly hooked simple hairs on the outer surface (other hair types may also be present)" 139 138 "Sepals lacking hooked simple hairs, the outer surface glabrous or with only straight, simple or fascicled (peudo-stellate) hairs" 152 139 "Branches rigid-woody" 140 139 "Branches wiry-woody" 147 140 "Young stems glabrous (except for intrapetiolar tufts of simple hairs)" 141 140 "Young stems puberulous with scattered minute radial fascicled hairs (intrapetiolar tufts of simple hairs also present)" 144 141 "Outer sepals (6.1–) 6.4–7.2 mm long; anthers 2.5–2.8 mm long" "Hibbertia incrassata" 141 "Outer sepals (4.1–) 5.2–5.8 (–6.3) mm long; anthers 0.7–2.2 mm long" 142 142 "Leaf base scarcely constricted to the petiole; anthers 0.7–0.9 mm long" "Hibbertia armata" 142 "Leaf base abruptly constricted to the petiole; anthers 1.8–2.2 mm long" 143 143 "Primary bract (0.5–) 1.2–1.5 mm long; outer sepals scarcely ridged; petals 7.4–9.6 mm long" "Hibbertia rigens" 143 "Primary bract 0.5–0.8 (–1.6) mm long; outer sepals slightly ridged; petals 4.7–5.5 (–6.3) mm long" "Hibbertia lignescens" 144 "Outer sepals (4.3–) 4.5–5 (–5.4) mm long; staminal filaments 0.3–0.6 mm long; anthers 2.6–3 mm long; QLD" "Hibbertia carnarvonensis" 144 "Outer sepals 5.5–8.3 mm long; staminal filaments 0.8–1.9 mm long; anthers 1.5–2.4 mm long; NSW, QLD" 145 145 "Leaf width 0.5–0.7 mm wide; pedicel 2.8–5 (–7.3) mm long; staminal filaments 1.7–1.9 mm long; anthers 1.5–1.8 mm long; QLD" "Hibbertia taeniophylla" 145 "Leaf width 0.9–1.4 mm wide; pedicel 0–3 mm long; staminal filaments 0.8–1.3 mm long; anthers 1.8–2.4 mm long; NSW" 146 146 "Leaves glabrous; outer sepals 7.2–8.3 mm long; petals 8–10 (–12.3) mm long" "Hibbertia pustulifolia" 146 "Leaves with minute radially spreading fascicled hairs; outer sepals 5.5–5.8 mm long; petals 5.4–6.2 mm long" "Hibbertia perhamata" 147 "Leaf lamina gradually tapering to scarcely constricted to the petiole" 148 147 "Leaf lamina ± abruptly constricted to truncate to the petiole" 150 148 "Staminal filaments 0.7–0.9; anthers 2.5–2.8 mm long" "Hibbertia incrassata" 148 "Staminal filaments 0.8–1.2; anthers 0.5–0.9 mm long" 149 149 "Outer sepals (4.4–) 5.2–5.8 (–6.3) mm long; inner sepals 5.5–6.2 mm long" "Hibbertia armata" 149 "Outer sepals 3.0–3.3 (–3.5) mm long; inner sepals (2.8–) 3.0–3.3 mm long" "Hibbertia minysantha" 150 "Stems ± filiform, with sparse leaves (5.4–) 9–14 (–18.6) mm long; staminal filaments 0.5–0.7 mm long; anthers 1.9–2.2 mm long" "Hibbertia nematophylla" 150 "Stems not filiform (slender-wiry to thickened-wiry) with many leaves (1.8–) 2.5–8 (–11.6) mm long; staminal filaments (0.9–) 1.1–1.4 mm long; anthers (0.8–) 1–1.6 (–1.8) mm long" 151 151 "Leaf lamina base ± truncate; NSW" "Hibbertia prorufa" 151 "Leaf lamina base slightly cuneate to ± abruptly constricted to the petiole; NSW, VIC, TAS" "Hibbertia acicularis" 152 "Stamens 10–12, the anthers 3–3.5 mm long; QLD" "Hibbertia aiodonta" 152 "Stamens (3) 4–7, the anthers 1.2–2 mm long; NSW" 153 153 "Branches becoming rigid-woody" 154 153 "Branches wiry-woody" 156 154 "Upper leaf surface with broad, multicellular tubercles; primary bract 1.2–1.4 mm long" "Hibbertia parvifolia" 154 "Upper leaf surface not tuberculate or with aculeate, unicellular tubercles; primary bract 0.6–0.8 (–1.1) mm long" 155 155 "Intrapetiolar tufts of hairs 0.4–0.6 mm long; pedicels 4.7–8.2 mm long" "Hibbertia nudicalycina" 155 "Intrapetiolar tufts of hairs to 0.15 mm long; pedicels (8.8–) 11–13 (–14.7) mm long" "Hibbertia woronorana" 156 "Upper leaf surface with tubercle-based straight, simple hairs" "Hibbertia tuberculipilosa" 156 "Upper leaf surface glabrous" "Hibbertia aristibracteata" 157 "Leaves and sepals fascicled-hairy only; staminodes present, often ± surrounding carpels" "Hibbertia cistoidea" 157 "Leaves and sepals with simple over fascicled hairs; staminodes absent" 158 158 "Erect or rounded shrubs 0.3Ð1 (Ð1.5) m high; SA" "Hibbertia platyphylla" 158 "Decumbent to prostrate shrubs to c. 0.3 m high; Vic" "Hibbertia humifusa" 159 "Flowers distinctly pedicellate" 160 159 "Flowers sessile or subsessile" 168 160 "Uppermost (primary) bract at the base of the pedicel or partway up the pedicel" 161 160 "Uppermost (primary) bract subtending the calyx" 164 161 "Outer surface of the sepals with scattered simple to fascicled hairs" "Hibbertia pilifera" 161 "Outer surface of the sepals glabrous" 162 162 "Leaf apex pungent-pointed with transparent awn (wearing off with age)" "Hibbertia obtusibracteata" 162 "Leaf apex acute or obtuse, if mucronate then with a blunt point" 163 163 "Scrambling or rarely spreading-erect shrubs to 0.3 m high; leaves with a ± truncate base that is abruptly constricted, the abaxial midrib recessed below the revolute margins; NSW, TAS, VIC" "Hibbetia rufa" 163 "Erect shrubs to 0.7 (–1) m high; leaves with a ± gradually tapering base, the abaxial midrib bulging to ± flush with the revolute margins; WA" "Hibbertia psilocarpa" 164 "Leaf apex obtuse, if mucronate then with a minute blunt tip; WA" "Hibbertia andrewsiana" 164 "Leaf apex acute to acuminate, with a sharp to blunt pointed tip or awn; eastern Australia" 165 165 "Leaf base truncate to cordate, abruptly constricted to the petiole" "Hibbertia leiocarpa" 165 "Leaf base gradually constricted to the petiole" 166 166 "Leaves narrowly linear, 0.4–0.7 mm wide; stamens 4 (5)" "Hibbertia filifolia" 166 "Leaves linear, 0.7–1.2 mm wide; stamens 6 or 7" 167 167 "Primary bract triangular, 0.3–0.5 mm long" "Hibbertia arenaria" 167 "Primary bract linear-triangular, 0.8–1.5 mm long" "Hibbertia rasilis" 168 "Young stems glabrous (except sometimes in the leaf axils)" 169 168 "Young stems sparsely to moderately hairy" 173 169 "Young leaves with tuberculate straight simple hairs along the flanks of the revolute margins" 170 169 "Young leaves smooth" 172 170 "Plants erect-spreading, much branched; branches rigid" "Hibbertia succuneata" 170 "Plants decumbent, little-branched; branches wiry" 171 171 "Primary bract ovate or rarely triangular, 0.7–1.1 mm long" "Hibbertia pustulata" 171 "Primary bract triangular to linear-triangular, 1.0–1.3 mm long" "Hibbertia cistiflora" 172 "Branches thread-like, trailing, little branched" "Hibbertia surcularis" 172 "Branches ± rigid-woody, spreading, much-branched" "Hibbertia succuneata" 173 "Leaf apex distinctly pungent" "Hibbertia ferox" 173 "Leaf apex obtuse to acute, but lacking a sharp point" 174 174 "Apex of outermost sepals obtuse" "Hibbertia psilocarpa" 174 "Apex of outermost sepals acute or tapering" 175 175 "Branchlets stout with very short seasonal growth units; leaves (2–) 3–5 mm long, 0.8–1.2 (–2) mm wide, prominently tuberculate" "Hibbertia tuberculata" 175 "Branchlets long, more or less straight seasonal shoots; leaves 3.5–15 mm long and 0.6–1 mm wide, surface smooth or sometimes with obscure tubercles" "Hibbertia oligantha" 176 "Leaves with a distinct midrib beneath, flat or the margins slightly to strongly revolute (sometimes closely appressed to the midrib)" 177 176 "Leaves without a distinct midrib beneath, terete, flattened or the margins incurved so that the leaf is grooved above" 324 177 "At least some stamens distinctly united into bundles by their filaments" 178 177 "All stamens free or nearly so" 210 178 "Carpels 4 or 5" 179 178 "Carpels 3" 189 179 "Leaves pungently acute, uncinate" "Hibbertia uncinata" 179 "Leaves obtuse to acute or acuminate but not pungent and uncinate" 180 180 "Erect shrubs, 1–2.5 m high when mature; leaves ovate, elliptical or obovate, usually with 1 or more pairs of teeth on both sides of the apex" "Hibbertia cuneiformis" 180 "Erect, spreading or decumbent shrubs to 0.5 m high when mature (rarely to 1 m); leaves linear or oblong, without pairs of teeth near apex" 181 181 "Leaves flat, without conspicuously revolute margins" "Hibbertia glomerosa" 181 "Leaves with loosely to strongly revolute margins" 182 182 "Sepal outer surface with rusty red or brownish hairs" "Hibbertia ferruginea" 182 "Sepal outer surface glabrous or with whitish hairs" 183 183 "Leaf abaxial surface densely sericeous with forward-facing, long, fine, simple hairs which at the apex usually protrude as a distinct apical tuft" "Hibbertia depressa" 183 "Leaf abaxial surface obscured by revolute margins, glabrous or not densely sericeous with long, fine hairs, apex without distinct tuft of hairs" 184 184 "Leaf margin strongly revolute and butting against the prominent midrib" 185 184 "Leaf margin loosely revolute and not butting against a prominent midrib" 187 185 "Leaves without a distinct narrow sulcus along the midline of the adaxial leaf surface, apex relatively obtuse" "Hibbertia huegelii" 185 "Leaves with a distinct narrow sulcus along the midline of the adaxial leaf surface, apex relatively acute" 186 186 "Multistemmed spreading shrub; abaxial midrib ± glabrous (except at very base)" "Hibbertia striata" 186 "Erect shrub, usually single-stemmed at the base; abaxial midrib with sparse hairs for ± the whole length" "Hibbertia subvillosa" 187 "Sepal outer surface glabrous or sparsely hairy with minute appressed hairs" "Hibbertia glabrisepala" 187 "Sepal outer surface with sparse to dense long, spreading hairs" 188 188 "Sepal apex with a prominent, thickened, acuminate and ± stiffly recurved apex" "Hibbertia squarrosa" 188 "Sepal apex acute to acuminate, but not thickened and stiffly recurved" "Hibbertia sericosepala" 189 "Leaf bases narrow or slightly broadened but not distinctly sheathing or clasping the stems" 190 189 "Leaf bases enlarged, distinctly sheathing or clasping the stems" 208 190 "Bracts conspicuous, broad, brown or pale" 191 190 "Bracts inconspicuous or narrowly triangular, scarious to herbaceous" 197 191 "Leaf margins tightly to loosely revolute" 192 191 "Leaf margins flat to slightly recurved, not revolute" 195 192 "Sepals glabrous or with a few apicals hairs or marginal cilia; stamens 11 to 12, 9 of which are fused by their filaments in 3 bundles of 3 stamens each" 193 192 "Sepals with short appressed hairs or long silky hairs; stamens 15–30, which are fused by their filaments in 5 bundles of 2–6 stamens per bundle" 194 193 "Leaf apex acute, with hard mucronate tip; apices of all sepals attenuate" "Hibbertia fitzgeraldensis" 193 "Leaf apex obtuse; sepal apices actue or obtuse (sometimes with a small aciculate tip, but not attenuate" "Hibbertia sejuncta" 194 "Sepals with long silky hairs; stamens 25–30" "Hibbertia sericosepala" 194 "Sepals with short appressed hairs; stamens 15–21" "Hibbertia leucocrossa" 195 "Leaves oblong, elliptic or obovate, moderately to densely hairy with long, fine and somewhat curled hairs; sepals distinctly hairy with long tangled hairs in at least the upper half" "Hibbertia trichocalyx" 195 "Leaves linear to narrowly oblong-obovate, glabrous or sparsely hairy; sepals glabrous or sparsely hairy at the apex or with a marginal cilia" 196 196 "Leaves with flat margins, the midrib scarcely visible; sepal margins finely and sparsely to distinctly ciliate with white or rusty hairs" "Hibbertia notibractea" 196 "Leaves with distinct and prominently thickened midrib below, the leaf margins recurved and often almost meeting the midrib; sepal margins glabrous" "Hibbertia aplacophylla" 197 "Leaves distinctly hairy" 198 197 "Leaves glabrous or with sparse hairs only (apart from the margins which may be minutely ciliolate)" 205 198 "Stamens 18–25(–40), in five bundles each of 3–6 stamens (rarely fewer, but no stamens single)" 199 198 "Stamens usually 11 (rarely more), with three bundles each of 3 (rarely more) stamens and two stamens free" 201 199 "Leaves (0.8–) 1–1.5 (–2) mm wide, margin strongly revolute and obscuring the true abaxial surface, adaxial surface sparsely (rarely moderately) pilose with loosely appressed to ± spreading hairs; primary bract narrowly ovate-acuminate" "Hibbertia huegelii" 199 "Leaves (1.3–) 2–4 (–5) mm wide, margin loosely recurved and not obscuring the abaxial surface, adaxial surface with sparse to moderate, curled to flexuose hairs; primary bract linear to narrowly oblong" 200 200 "Leaves persistently pubescent; sepals moderately to densely pubescent" "Hibbertia pubens" 200 "Leaves mostly glabrous except when young; sepals glabrous to sparsely pubescent" "Hibbertia leucocrossa" 201 "Leaves elliptical or obovate, flat and without revolute or recurved margins leaving the abaxial surface clearly visible" "Hibbertia priceana" 201 "Leaves linear, margins tightly revolute to the midrib with the abaxial surface obscured or loosely revolute or recurved with the abaxial surface partially obscured" 202 202 "Sepals obtuse to subacute, subequal; anthers narrowly obovate 0.7–0.8 mm long" "Hibbertia helianthemoides" 202 "Sepals all obtuse, the outermost shorter than the inner ones; anthers narrowly oblong, 1–2.2 mm long" 203 203 "Leaves with the midrib recessed below the bulging margins that are occasioanlly obscuring the midrib (at least distally); leaf indumentum consisting of straight hairs that are longer and denser at near the leaf base" "Hibbertia desmophylla" 203 "Leaves with the midrib ± level with the recurved margins and with two grooves to either side; leaf indumentum consisting of short curled hairs" 204 204 "Leaves with shallow grooves on both sides of the abaxial midrib; anthers 1.4–1.5 mm long" "Hibbertia hapalophylla" 204 "Leaves with narrow and deep grooves on both sides of the abaxial midrib; anthers 1.8–2.2 mm long" "Hibbertia remanens" 205 "Leaves ovate or oblong to elliptic, the margins flat or loosely recurved" 206 205 "Leaves linear and terete or nearly so(sometimes slightly broadened at the apex and obtriangular)" 207 206 "Stamens 15–21, in five bundles" "Hibbertia leucocrossa" 206 "Stamens 10–12, at least some free" "Hibbertia glomerata" 207 "Leaves linear, straight or with a slightly recurved apex" "Hibbertia glaucophylla" 207 "Leaves slightly broaded at the apex and obtriangular, shallowly to deeply sigmoid with a distinctly recurved apex" "Hibbertia hamata" 208 "Flowers on slender stalks" "Hibbertia racemosa" 208 "Flowers sessile or almost so" 209 209 "Floral and stem leaves different, stem leaves narrow; floral leaves broader ovate to elliptic" "Hibbertia vaginata" 209 "Floral and stem leaves all similar, narrow" "Hibbertia subvaginata" 210 "Leaves ericoid (linear or very narrowly ovate, often rather hard-textured and stiff, the margins strongly recurved and abbutting each other or the prominent midrib so the true abaxial leaf surface is hidden)" 211 210 "Leaves not ericoid (variously shaped, herbaceous and flexible, flat or with recurved margins that do not tightly abut the midrib so the true abaxial leaf surface is exposed)" 250 211 "Leaves pungent-pointed" 212 211 "Leaves obtuse to acute, not pungent" 219 212 "Ovaries hairy" 213 212 "Ovaries glabrous" 215 213 "Sepals glabrous" "Hibbertia sp. Mount Gibson (B.H. Smith 883)" 213 "Sepals hairy" 214 214 "Leaves straight, 10–20 mm long. Sepals 12–16 mm long. Carpels (2) 3 with (8) 10 ovules" "Hibbertia graniticola" 214 "Leaves curved, 4–8 mm long. Sepals 5–9 mm long. Carpels 2 with 6–8 ovules" "Hibbertia arcuata" 215 "Leaves with distinctly hooked apices" 216 215 "Leaf apices ± straight" 217 216 "All floral bracts acute to pungent, narrow, not scarious brown" "Hibbertia rostellata" 216 "At least uppermost floral bracts broad, obtuse, scarious brown" "Hibbertia uncinata" 217 "Uppermost floral bracts obtuse" "Hibbertia exasperata" 217 "Uppermost floral bracts acute, ± pungent" 218 218 "Leaves with recurved margins (without grooves to either side of the midrib), the midrib prominently buldging; WA" "Hibbertia pungens" 218 "Leaves with revolute margins (with grooves to either side of the midrib), the midrib ± flush with the margins; Qld" "Hibbertia advena" 219 "Flowers distinctly (sometimes shortly) pedicellate" 220 219 "Flowers sessile or subsessile" 237 220 "Ovaries glabrous" "Hibbertia glabriuscula" 220 "Ovaries hairy throughout" 221 221 "Stamens irregularly arranged around the carpels, with 2–7 stamens on one side of the ovary and 1 or 2 stamens on the other side" 222 221 "Stamens 7–35, arranged evenly around the carpels" 224 222 "Undersurface of leaves not visible between central vein and revolute margins; leaves with raised pustules; outer sepals (5.2–) 5.4–5.8 (–6.1) mm long, 1.8–2.6 mm wide" "Hibbertia dispar" 222 "Undersurface of leaves usually visible between central vein and revolute margins; leaves smooth; outer sepals 4.5–4.7 (–5.1) mm long, 2.3–2.5 mm wide" 223 223 "Pedicels usually > 6 mm long; petals 7.5–10 mm long × 6.5–8 mm wide, overlapping (sepals usually not visible from above at anthesis)" "Hibbertia basaltica" 223 "Pedicels usually < 4 mm long; petals 5–6(–8) mm long × 2–3.5(–4.5) mm wide, not overlapping (sepals visible from above at anthesis)" "Hibbertia doleritica" 224 "Outer sepals obtuse to rounded and without distinct central ridge" 225 224 "Outer sepals acute or pointed and with well developed central ridge towards the apex" 226 225 "Spreading hairs on leaves (0.4–) 0.5–0.7 mm long; central vein more less flush with revolute margins, but undersurface of leaves often visible between them" "Hibbertia expansa" 225 "Spreading hairs on leaves (0.15–) 0.2–0.3 (–0.4) mm long; undersurface of leaves not visible and with blunt papillae on opposite margins" "Hibbertia pedunculata" 226 "Branches covered with multiangulate fascicled hairs; simple hairs present or absent" 227 226 "Branches covered with short and long simple, rarely twinned hairs" 228 227 "Anthers 0.9–1.2 mm long; central vein of leaves flush with or bulging above revolute margins" "Hibbertia singularis" 227 "Anthers 1.5–2 mm long; central vein of leaves recessed below revolute margins" "Hibbertia samaria" 228 "Primary bracts subtending or close to the calyx" 229 228 "Primary bracts below the middle of the pedicel" 233 229 "Simple hairs on branches porrect; leaves densely hairy" "Hibbertia expansa" 229 "Simple hairs on branches antrorse to more or less appressed; leaves with scattered hairs often wearing off" 230 230 "Shrublets 0.1–0.4 m high, with decumbent to prostrate wiry-woody branches" "Hibbertia florida" 230 "Shrubs 0.4–1.2 m tall, with erect-spreading branches becoming rigid-woody" 231 231 "Leaf apex distinctly cuspidate" "Hibbertia fruticosa subsp. fruticosa" 231 "Leaf apex hardly mucronate" 232 232 "Leaves glabrescent, undersurface not visible" "Hibbertia fruticosa subsp. pilligaensis" 232 "Leaves hairy (scabrid), undersurface usually visible between central vein and revolute margins" "Hibbertia angustinervis" 233 "Outer sepals hirsute to strigose, distal margins usually recurved" "Hibbertia porcata" 233 "Outer sepals glabrescent or rarely hairy (pubescent), distal margins not or scarcely recurved" 234 234 "Central vein of leaves broader than, and bulging to flush with, revolute margins, with undersurface not visible between them" 235 234 "Central vein of leaves ± as broad as, and recessed from, the revolute margins, with undersurface often visible between them" 236 235 "Leaves with bulging pustules; pedicel (2–) 3.5–5 (–9.5) mm long; staminal filaments strap-like" "Hibbertia pachynemidium" 235 "Leaves smooth with flat pustules; pedicel (5.6–) 8–15 (–18.5) mm long; staminal filaments filiform (thread-like)" "Hibbertia exposita" 236 "Pedicel 2–5 mm long; anthers 1.6–1.8 mm long" "Hibbertia intermedia" 236 "Pedicel (4.5–) 5–7.5 (–11.3) mm long; anthers 0.5–1.4 mm long" "Hibbertia exponens" 237 "Leaves hairy with predominantly fascicled or fascicled hairs" 238 237 "Leaves glabrous, or hairy with predominately simple or bifid hairs" 240 238 "Carpels 3" "Hibbertia demissa" 238 "Carpels 2" 239 239 "Stamens 20–24, all subequal in height, staminodes absent" "Hibbertia horricomis" 239 "Stamens 8–10, subequal in height except for one longer, staminodes up to 10" "Hibbertia planifolia" 240 "Carpels 2" 241 240 "Carpels 3" 244 241 "Stamens (2–) 4–6 (–9), on one side of the carpels except 1 (2) that are placed on the opposite side" "Hibbertia dispar" 241 "Stamens 6–24, arranged ± evenly around the carpels" 242 242 "Young stems with very dense or dense fascicled (fascicled) hairs, usually overtopped by longer spreading hairs; NSW" "Hibbertia horricomis" 242 "Young stems glabrous or sparsely to moderately hairy with white to golden simple hairs; WA" 243 243 "Sepals densely pubescent to villous with golden-brown hairs" "Hibbertia drummondii" 243 "Sepals glabrous to sparsely appressed-hairy with pale hairs" "Hibbertia glabriuscula" 244 "Staminal filaments strap-like (distinctly flattened and broadened at the base)" 245 244 "Staminal filaments filiform (thread-like)" 247 245 "Leaf abaxial surface densely hairy with fascicled hairs" "Hibbertia expansa" 245 "Leaf abaxial surface sparsely hairy with simple hairs" 246 246 "Leaf margins loosely revolute and not tightly abutting the midrib; abaxial lamina and midrib smooth, glabrous" "Hibbertia vestita" 246 "Leaf margins strongly revolute and tightly abutting the midrib; abaxial lamina adjacent to the midrib (where visible) papillate to tuberculate" "Hibbertia stichodonta" 247 "Leaves with margins scarcely recurved, the abaxial lamina between the margins and midrib clearly visible; tall shrubs to 1.5 m x 2 m" "Hibbertia coloensis" 247 "Leaves with margins strongly recurved, the abaxial lamina completely or mostly hidden; low shrubs to 0.4 m" 248 248 "Fertile stamens 30–38; staminodes present" "Hibbertia mediterranea" 248 "Fertile stamens 9–15 (–30); staminodes absent" 249 249 "Branches with mostly simple (or few-armed) hairs" "Hibbertia ericifolia" 249 "Branches with mostly multiangulate fascicled hairs" "Hibbertia demissa" 250 "Flowers or pedicels subtended by conspicuous, broad, brown, chartaceous bracts" 251 250 "Floral bracts inconspicuous or leaf-like, not conspicuous, broad, brown and chartaceous" 279 251 "Ovaries glabrous" 252 251 "Ovaries hairy" 265 252 "Flowers sessile or nearly so" 253 252 "Flowers distinctly pedicellate" 264 253 "Leaves densely appressed silvery- or grey-sericeous at least beneath" 254 253 "Leaves glabrous, pubescent or pilose beneath but not appressed silvery- or grey-sericeous" 257 254 "Leaves concolorous or nearly so, appressed-sericeous on both sides" 255 254 "Leaves distinctly discolorous, green and glabrous or velvety with erect hairs above, silvery to pale grey appressed-sericeous beneath" 256 255 "Carpels 3; stamens 30–48" "Hibbertia argentea" 255 "Carpels 2; stamens 21–27" "Hibbertia barrettiae" 256 "Leaves adaxially with short, erect, velvety hairs; sepals densely appressed-pilose" "Hibbertia wheelerae" 256 "Leaves adaxially glabrous; sepals glabrous except for very short, appressed hairs at the apex" "Hibbertia sandifordiae" 257 "Carpels (4) 5" "Hibbertia lividula" 257 "Carpels (2) 3" 258 258 "Stamens 16–40 (–50), arranged in three groups with distinct gaps along the radius of the carpels" 259 258 "Stamens (40–) 50–80, arranged more or less evenly all around the carpels" 263 259 "Leaves sparsely pilose with long, spreading, tubercle-based hairs (these sometimes restricted to the leaf margins)" "Hibbertia pilosa" 259 "Leaves glabrous to densely pubescent to shortly pilose, if pilose then the hairs usually ± appressed and without distinct tubercles" 260 260 "Low, multistemmed shrubs to 50 cm; leaves mostly 15–40 mm long, dull, dark green above, often greyish beneath, entire or at most with one or two short, indistinct teeth on each side near the apex" 261 260 "Erect shrubs to 1.8 m, single-stemmed at the base; leaves usually 30–70 mm long at least on the main stems, pale green; larger leaves distinctly toothed" 262 261 "Sepals densely spreading-hirsute with white hairs including at the base; flower buds distinctly rostrate, the sepal apices attenuate" "Hibbertia commutata" 261 "Sepals glabrous at base, sparsely to moderately appressed-pubescent to -hirsute with silvery hairs towards the apex; flower buds not or only slightly rostrate, the sepal apices acute to shortly acuminate" "Hibbertia semipilosa" 262 "Leaves thin-textured, sparsely, ?nely and shortly appressed-pubescent above; sepals 6–8 mm long; stamens usually 20–30" "Hibbertia serrata" 262 "Leaves thick-textured, spreading-pubescent above; sepals 8–11 mm long; stamens usually 40–50" "Hibbertia improna" 263 "Sepals glabrous; leaves pilose" "Hibbertia mylnei" 263 "Sepals shortly appressed-hairy; leaves glabrous to sparsely pilose" "Hibbertia ambita" 264 "Leaves usually 4–10 mm long, spreading-pilose; carpels (2) 3; stamens 16–24" "Hibbertia inconspicua" 264 "Leaves usually 25–40 mm long, appressed-sericeous; carpels (3–) 5; stamens 60–90" "Hibbertia potentilliflora" 265 "Flowers yellow" 266 265 "Flowers orange" 278 266 "Flowers distinctly pedicellate" 267 266 "Flowers sessile or shortly pedicellate (the pedicels shorter than the floral bracts and hidden by them at anthesis" 269 267 "Leaves petiolate, distinctly toothed; pedicel subtended by a single,triangular bract; carpels (5) 10 (15)" "Hibbertia grossulariifolia" 267 "Leaves sessile, entire or obscurely and distantly toothed; pedicels subtended by several orbicular to triangular bracts; carpels 5" 268 268 "Leaves mostly 20–30 mm wide, with hairs of two distinct lengths, the shorter hairs 0.1–0.2 mm long (best seen on young leaves)" "Hibbertia lasiopus" 268 "Leaves mostly 8–16 mm wide, when mature with even-length hairs 0.5 mm long (sometimes overtopped by very sparse, longer, pilose hairs when young)" "Hibbertia acrotoma" 269 "Carpels 2" "Hibbertia inopinata" 269 "Carpels 3–5" 270 270 "Sepals densely appressed- to spreading-pilose throughout, the hairs 1–3 mm long" 271 270 "Sepals velvety with very fine, short, appressed hairs < 0.5 mm long at least in the upper half, with or without distinctly longer hairs in the basal half or along the margins" 276 271 "Erect to spreading shrubs, single-stemmed at base" 272 271 "Prostrate to decumbent shrubs, multi-stemmed at base" 274 272 "Leaves adaxially with fine, appressed hairs all the same length" "Hibbertia elegans" 272 "Leaves adaxially with hairs of variable length, or of two distinct lengths, not appressed" 273 273 "Leaves coarsely tomentose to pubescent with hairs of variable length;sepals 5–7 mm long, pilose almost throughout" "Hibbertia montana" 273 "Leaves with very short, erect hairs to 0.1 mm overtopped by sparse, spreading pilose hairs to 2 mm long; sepals 8–10 mm long, often pilose in the lower half only" "Hibbertia davisii" 274 "Leaves with hairs of two distinct lengths (best seen on young leaves),with an underlayer of minute, erect, velvety hairs overlain by much longer, pilose hairs" "Hibbertia lasiopus" 274 "Leaves with hairs all more or less the same length, or the hairs of variable length" 275 275 "Indumentum obscuring the leaf surface at least when young; sepals 8–10 mm long; petals 12–14 mm long" "Hibbertia quadricolor" 275 "Indumentum not obscuring the leaf surface when young; sepals 10–18 mm long; petals 20–35 mm long" "Hibbertia spectabilis" 276 "Plants prostrate, mat-forming" "Hibbertia hortiorum" 276 "Plants erect to spreading" 277 277 "Carpels densely pubescent; sepals with a prominent marginal fringe of pilose hairs in the lower half" "Hibbertia ovata" 277 "Carpels mostly glabrous with very sparse hairs mainly along the suture on the inner margin; sepals with no or few marginal pilose hairs in the lower half" "Hibbertia ambita" 278 "Carpels 5; anthers yellow or black, obovate" "Hibbertia miniata" 278 "Carpels 3; anthers yellow, linear" "Hibbertia selkii" 279 "Carpels 1–3" 280 279 "Carpels (4) 5–15" 317 280 "Ovaries hairy" 281 280 "Ovaries glabrous" 293 281 "Carpels 2" 282 281 "Carpels 3" 289 282 "Stamens > 30" "Hibbertia reticulata" 282 "Stamens < 25" 283 283 "Staminodes absent" 284 283 "Staminodes present" 286 284 "Erect shrubs or small trees to 3 (–5) m high; leaves elliptic- to oblanceolate, (8.2–) 15–50 (–75.6) mm long, (4.6–) 6–18 (–22.8) mm wide, margin flat or slightly recurved; stamens 6 (–12), arranged in groups around the carpels" "Hibbertia hexandra" 284 "Decumbent or prostrate shrublets to 0.2 m high; leaves linear to linear-elliptic, (2.4–) 3.5–6 (–7.4) mm long, 1–1.4 (–1.6) mm wide, margins revolute; stamens (3–) 4 or 5 (–7), on one side of the carpels and with 1 stamen opposite the others" 285 285 "Pedicels usually > 6 mm long; petals 7.5–10 mm long × 6.5–8 mm wide, overlapping (sepals usually not visible from above at anthesis)" "Hibbertia basaltica" 285 "Pedicels usually < 4 mm long; petals 5–6(–8) mm long × 2–3.5(–4.5) mm wide, not overlapping (sepals visible from above at anthesis)" "Hibbertia doleritica" 286 "At least some fascicled hairs on the leaf undersurface stalked" "Hibbertia hermanniifolia" 286 "Fascicled hairs on leaf undersurface sessile" 287 287 "Leaves oblong-oblanceolate, margin scarcely recurved with narrow midrib and abaxial surface clearly exposed, adaxial surface with simple hairs or a mixture of simple and few-branched fascicled hairs" "Hibbertia acaulothrix" 287 "Leaves oblanceolate-cuneate to spathulate or linear-obtriangular, margins revolute with abaxial surface somewhat or mostly obscured between the broad midrib, adaxial surface fascicled-hairy, without simple hairs" 288 288 "Prostrate to decumbent shrubs to 0.3 m high; leaves linear-obtriangular (rarely linear), 0.5–0.8 (–1.5) mm wide, abaxial surface mostly or completely hidden between bulging revolute margin and usually flattened and broad midrib, adaxial surface with long fascicled towards the margin over shorter fascicled hairs throughout" "Hibbertia planifolia" 288 "Erect to spreading shrubs to 1.5 m high; leaves oblanceolate-cuneate or obtriangular to spathulate, sometimes folded lengthwise, (1.2–) 1.5–4 (–8.3) mm wide, adaxial surface mostly visible between margin and often bulging, prominent midrib" "Hibbertia spathulata" 289 "Stamens 23–48 around the carpels, with numerous (or rarely just a few) staminodes outside the fertile stamens" 290 289 "Stamens 7–26 (–30) around the carpels, without staminodes" 291 290 "Leaves (13–) 20–30 (–39.6) mm long, (3.2–) 4–6.5 (–8.4) mm wide; sepals (8–) 9–15 (–20) mm long" "Hibbertia marginata" 290 "Leaves (2.1–) 3.5–8 (–11.4) mm long, (0.5–) 0.6–1 (–3.4) mm wide; sepals (5.2–) 6–8 (–9.8) mm long" "Hibbertia vestita" 291 "Leaves oblong to oblong-elliptic" "Hibbertia serpyllifolia" 291 "Leaves linear to linear-oblanceolate" 292 292 "Leaves > 7 mm long; flowers sessile; stamens > 20" "Hibbertia coloensis" 292 "Leaves < 5 mm long; flowers pedicellate; stamens < 11" "Hibbertia intermedia" 293 "Trailing to twining vines" 294 293 "Prostrate to erect shrubs or shrubs hanging from cliffs, not climbing or trailing" 295 294 "Leaves tapering at the base, sessile and stem-clasping; margins usually entire or with minute teeth" "Hibbertia scandens" 294 "Leaves with lamina obtuse at base, distinctly petiolate; margins with minute teeth" "Hibbertia dentata" 295 "Stamens erect and forming a conical structure that obscures the carpels (later spreading the stamens spread), arranged in three crowded whorls around the gynoecium, the outer whorl with 4 or 5 stamens, the middle whorl with 3–5 stamens, the inner whorl with 2 stamens alternate to the carpels" "Hibbertia salicifolia" 295 "Stamens not forming a conical structure obsucring the carpels, arranged in even ring around the carpels or in groups between the gaps in the carpels" 296 296 "Leaves amplexicaul, ± auriculate" "Hibbertia nymphaea" 296 "Leaves sessile to petiolate, not amplexicaul" 297 297 "Sepals densely hairy abaxially, the surface beneath ± obscured by the hairs" 298 297 "Sepals glabrous or sparsely hairy abaxially, the surface beneath clearly visible" 302 298 "Sepal apex acuminate" "Hibbertia acuminata" 298 "Sepal apex acute or obtuse" 299 299 "Sepals tomentose, the hairs crisped and densely matted" 300 299 "Sepals silky to villous, the hairs straight and appressed to spreading" 301 300 "Erect shrubs to c. 1 m high; both leaf surfaces densely to moderately tomentose with short, crisped to straight, simple hairs; N.S.W." "Hibbertia kaputarensis" 300 "Shrubs hanging from cliff faces; adaxial leaf surface densely to moderately pubescent with short, erect, ± semi-translucent simple hairs; abaxial leaf surface densely sericeous with ± appressed simple hairs; N.T." "Hibbertia pendula" 301 "Stamens c. 20–35; N.S.W." "Hibbertia saligna" 301 "Stamens c. 80–120; N.T., S.A. & W.A." "Hibbertia glaberrima" 302 "Flowers sessile; stamens < 60" 303 302 "Flowers pedicellate; stamens > 60" 316 303 "Leaves dimorphic, the leaves subtending the flowers of a different shape and size to those further down the stem; WA" "Hibbertia glomerata" 303 "Leaves not dimorphic; eastern Australia" 304 304 "Leaves folded longitudinally along the adaxial midrib and with the truncate, emarginate or minutely toothed apex, the leaf shape usually spathulate (rarely obolanceolate to obovate)" 305 304 "Leaves ± flat, not folded longitudinally along the midrib, the apex acute to obtuse (or if truncate, toothed or emarginate then not folded longitudinally), the leaf shape various but not spathulate" 306 305 "Carpels (2) 3; stamens 15–30" "Hibbertia circumdans" 305 "Carpel 1 (2); stamens 10–14" "Hibbertia monogyna" 306 "At least some leaves with 1–several pairs of marginal teeth (sometimes only as minute projections or only near the apex)" 307 306 "All leaves with entire margins (the apex may be mucronate or emarginate at the midrib)" 310 307 "Leaves with distinctly coiled hairs; stamens 9–13" "Hibbertia circinata" 307 "Leaves with straight or crisped hairs, but not distinctly coiled; stamens > 14" 308 308 "Stem hairs crisped or curled, appressed to the surface" "Hibbertia oligodonta" 308 "Stem hairs ± straight, erect to spreading" 309 309 "Leaves densely to sparsely villous, covered with straight hairs 1–3 mm long on both surfaces" "Hibbertia villosa" 309 "Leaves sparsely hairy to glabrous, both surfaces usually glabrescent except for the basal margins, the hairs typically < 1 mm long" "Hibbertia diffusa" 310 "Plants spreading or pendulous from fissures in cliff sides; stamens 40–60; N.T." "Hibbertia scopulicola" 310 "Decumbent to erect shrubs, the habitat various but growing from cliff faces; stamens <= 40; N.S.W., Qld. & Vic." 311 311 "Carpel 1 (2); leaf shape spatulate to oblanceolate; leaf apex emarginate to bilobed" "Hibbertia monogyna" 311 "Carpels (2) 3; leaf shape narrowly elliptic, obovate or oblancolate; leaf apex obutse to acute and usually entire, if emarginate then carpels > 2" 312 312 "Leaves with distinctly coiled hairs; stamens 9–13" "Hibbertia circinata" 312 "Leaves with straight or crisped hairs, but not distinctly coiled; stamens > 14" 313 313 "Stems and leaves densely to sparsely villous, covered with hairs 1–3 mm long on both surfaces" "Hibbertia villosa" 313 "Stems and leaves glabrous or sparsely to densely hairy, the hairs < 1 mm long" 314 314 "Sepals glabrous on the outer surface (except for marginal cilia)" "Hibbertia monticola" 314 "Sepals sparsely to moderately hairy on the outer surface" 315 315 "Stamens 15–25" "Hibbertia linearis" 315 "Stamens 30–40" "Hibbertia obtusifolia" 316 "Bract linear-lanceolate or narrowly elliptic to narrowly lanceolate; Qld." "Hibbertia longifolia" 316 "Bract triangular-lanceolate to narrowly ovate; N.T., S.A. & W.A." "Hibbertia glaberrima" 317 "Ovaries hairy" "Hibbertia grossulariifolia" 317 "Ovaries glabrous" 318 318 "Leaves amplexicaul or perfoliate" 319 318 "Leaves not amplexicaul or perfoliate" 322 319 "Leaves broadly elliptic to circular" "Hibbertia porongurupensis" 319 "Leaves broadly ovate to linear" 320 320 "Staminal filaments closely appressed to and fully obscuring the carpels, the anthers arranged above the centre of the flower like a fountain; petals dark yellow to orangish yellow (fresh)" "Hibbertia amplexicaulis" 320 "Staminal filaments erect to slightly spreading, not closely appressed to the carpels, which are generally visible between the filaments and from above, the anthers rather loosely arranged around the centre of the flower; petals bright yellow (fresh)" 321 321 "Leaves perfoliate or not, smooth-textured, the margins smooth or obscurely toothed; erect to spreading plants of dry sites" "Hibbertia cunninghamii" 321 "Leaves perfoliate, distinctively rough-textured, usually with marginal, multi-cellular denticulations; trailing plants of wet, swampy places" "Hibbertia perfoliata" 322 "Usually scandent or trailing shrubs with stems to 4 m long (rarely subshrub with erect stems when young); most leaves > 15 mm wide" "Hibbertia scandens" 322 "Erect to spreading or procumbent shrubs with stems not scandent or long-trailing; leaves < 10 mm wide" 323 323 "Flowers distinctly pedicellate" "Hibbertia potentilliflora" 323 "Flowers sessile or very shortly pedicellate" "Hibbertia lividula" 324 "Stamens all free" 325 324 "At least some stamens with filaments fused into bundles" 334 325 "Flowers stalked" 326 325 "Flowers sessile" 327 326 "Leaves flat or subterete, glabrous at the base" "Hibbertia stellaris" 326 "Leaves folded, when narrow appearing to be terete with an adaxial groove, appressed-hairy at the base with a ciliate margin" "Hibbertia leptopus" 327 "Leaves narrowly spathulate or oblanceolate to narrowly obovate" 328 327 "Leaves linear or narrowly oblong to elliptic" 330 328 "Plants decumbent to prostrate, growing from stems at or below the soil surface; Vic" "Hibbertia procumbens" 328 "Plants erect to spreading, growing from woody stems above the soil surface; WA" 329 329 "Leaves with minute curled simple hairs" "Hibbertia inclusa" 329 "Leaves glabrous" "Hibbertia wandoo" 330 "Bracts triangular to linear-triangular, apex acute, with marginal cilia" 331 330 "Bracts broadly ovate to obovate or orbicular, apex rounded to truncate and mucronate, often without marginal cilia" 333 331 "Stamens (3–) 9–11 (–12)" "Hibbertia fasciculata" 331 "Stamens (15–) 20–30 (–32)" 332 332 "Plants prostrate, scarcely woody" "Hibbertia procumbens" 332 "Plants erect, spreading, woody main branches" "Hibbertia elata" 333 "Leaves conduplicate with lateral margins usually touching, rarely upper surface evenly furrowed; sepals stiffly coriaceous and with a rounded apex; stamens (12–) 14–35" "Hibbertia crispula" 333 "Leaves above flat, concave or with lateral margins loosely incurved, and if grooved then usually widened or flattened towards the apex; sepals herbaceous and with an acute apex; stamens (9–) 11 (–12)" "Hibbertia virgata" 334 "Bracts conspicuous, broad, brown" 335 334 "Bracts inconspicuous or leaf-like" 337 335 "Sepals herbaceous, elliptic to narrowly elliptic; stamens 1.5–2.5 mm long, anthers oblong to obovate" "Hibbertia pulchra" 335 "Sepals chartaceous and easily torn, very broadly elliptic; stamens 2.5–4 mm long, anthers oblong to elliptic" 336 336 "Leaves terete to semi-terete, apices with a few minute hairs" "Hibbertia acrotrichion" 336 "Leaves flat, completely glabrous" "Hibbertia chartacea" 337 "Outermost sepals with a prominent caudate tip" 338 337 "Outermost sepals acute or obtuse, but not with a caudate tip" 340 338 "Leaves terete, without two conspicuous grooves on the undersurface" "Hibbertia hibbertioides" 338 "Leaves flattened, with 2 conspicuous grooves on the undersurface" 339 339 "Leaves straight to shallowly curved, not distinctly dilated and flatted at the apex" "Hibbertia glaucophylla" 339 "Leaves deeply curved to sinuate, distinctly dilated and flattened at the apex" "Hibbertia hamata" 340 "Leaves flat or flattened, not terete; stamens 1.5–2.5 mm long; anthers 0.8–1.5 mm long, oblong to obovate, apex obtuse or truncate" "Hibbertia pulchra" 340 "Leaves slender, more or less terete, usually tapered towards tip; stamens 2.5–3.5 (–4) mm long; anthers oblong to elliptic, apex subacute or apiculate" 341 341 "Leaves 3–12 mm long; staminal filaments of fascicles, fused for two-thirds their length" "Hibbertia hemignosta" 341 "Leaves 10–22 mm long; staminal filaments fused for up to half their length" "Hibbertia meridionalis" 342 "Leaves ericoid, pungent; stamens to one side of the carpels" "Hibbertia lepidocalyx" 342 "Leaves not ericoid or pungent; stamens all around the carpels" 343 343 "Style base usually with peltate scales or rarely fascicled hairs; anthers usually unequal, (1.3–) 1.5–2.5 (–4.8) mm long; flower buds ellipsoidal with acute rarely obtuse inner sepals" 344 343 "Style base without hairs or scales; anthers subequal, usually (0.6–) 0.8–1.3 (–1.5) mm long; buds spherical to pyriform with rounded inner sepals" 357 344 "Branches and/or undersurface of leaves covered with spreading rosette-like to cactiform fascicled hairs" 345 344 "Branches and/or undersurface of leaves covered with ciliate to entire scales, rarely mixed with cactiform fascicled hairs" 355 345 "Abaxial petiole mainly covered with long-spreading hairs (hirsute)" 346 345 "Abaxial petiole covered with short-armed or reflexed hairs (pubescent)" 351 346 "Leaves linear to linear-oblanceolate, 2.2–5.7 mm broad; 66–74 stamens" "Hibbertia mulligana" 346 "Leaves elliptic to lanceolate to oblanceolate, usually > 6 mm broad or if less then < 64 stamens" 347 347 "Arms of hairs on the central vein on the undersurface of leaves all long, silky and erect" 348 347 "Arms of hairs on the central vein on the undersurface of leaves long and short, spreading" 349 348 "Stamens 50–55; leaves without lateral veins visible on the adaxial surface (i.e. only midrib visible), the apex rounded or rarely mucronate; inland mountains (Many Peaks Range)" "Hibbertia malacophylla" 348 "Stamens 34–40; leaves with lateral veins visible on adaxial surface, the apex usually acute to cuspidate; coastal sand" "Hibbertia velutina" 349 "Stamens up to 26; arms of hairs on midrib of abaxial leaf surface mainly short; carpels 2" "Hibbertia bicarpellata" 349 "Stamens 30–60; long arms of hairs on midrib of abaxial leaf surface long and silky; carpels predominantly 3" 350 350 "Stamens 37–48; upper leaf surface usually ± grooved along the central and lateral veins" "Hibbertia nemorosa" 350 "Stamens 50–60; upper leaf surface scarcely grooved along the central vein" "Hibbertia melhanioides" 351 "Shrubs with one to few stems, with woody branches; anthers up to 2.5 mm long" 352 351 "Subshrubs multistemmed, with wiry branches; some anthers 2.5–3.7 mm long" 353 352 "Stamens 20–26; carpels 2" "Hibbertia bicarpellata" 352 "Stamens 40–45; carpels 3" "Hibbertia araneolifera" 353 "Leaf lamina (0.7–) 1–2 (–2.4) mm broad; sepals without fascicled hairs on inside; style base ± glabrous (rarely with some scales)" "Hibbertia scabra" 353 "Leaf lamina usually > 3 mm wide; sepals with some fascicled hairs on the inside; style base with some scales-like hairs" 354 354 "Leaf lamina usually (2.1–) 5.0–12.5 (–21.2) mm broad; margins recurved, rarely revolute and with ± appressed hairs" "Hibbertia cistifolia" 354 "Leaf lamina 3–8 mm broad; margins strongly revolute, with longer spreading fascicled hairs (to arms to c. 1 mm long)" "Hibbertia incompta" 355 "Sepals acute, with pale cactiform fascicled hairs and narrow-rimmed scales and usually eciliate; leaf axils without brown simple hairs; carpels 2" "Hibbertia eciliata" 355 "Sepals rounded or obtuse, often with brown marginal cilia; leaf axils sometimes with brown simple hairs, particularly around flowers; carpels 3 (4)" 356 356 "Leaf lamina linear to linear-oblanceolate, 1.9–4.0 (–5.7) mm broad; vestiture scales with cactiform fascicled hairs buds ellipsoidal to ovoid-ellipsoidal" "Hibbertia guttata" 356 "Leaf lamina elliptic-lanceolate to oblong, 0.9–17.2 mm broad; vestiture of mainly scales; buds almost spherical to pyriform" "Hibbertia echiifolia" 357 "Undersurface of leaves and branches with rosette-like to cactiform fascicled hairs" 358 357 "Undersurface of leaves (and usually branches) with ciliolate to entire peltate scales" 394 358 "Vestiture on undersurface of leaves less dense than (rarely as dense as) upper surface" 359 358 "Vestiture on undersurface of leaves at least as dense as (usually distinctly denser than) upper surface" 362 359 "Leaf lamina broadly elliptical to orbicular; stamens > 30" "Hibbertia orbicularis" 359 "Leaf lamina elliptic to oblanceolate; stamens < 30" 360 360 "Shrublets with spreading ± rigid branches; leaves and branches with rosette-like and cactiform fascicled hairs" "Hibbertia stelligera" 360 "Shrublets with decumbent wiry branches; leaves and branches with rosette-like fascicled hairs" 361 361 "Stamens 13–15; upper surface of petiole with bristle-like arms of the fascicled hairs" "Hibbertia scopata" 361 "Stamens 26–28; upper surface of petiole with similar vestiture as upper leaf surface" "Hibbertia cactifolia" 362 "Flower buds ellipsoidal; outer sepals beaked and inner ones pointed and without cilia on margins" 363 362 "Flower buds spherical or pyriform; inner sepals rounded, rarely obtuse, outer ones with unilaterally enlarged marginal fascicled hairs" 365 363 "Plants with single or few stems, re-establishing from seed; leaf margins rarely slightly recurved" "Hibbertia tomentosa" 363 "Plants multistemmed, regeneration from rootstock; leaf margins revolute" 364 364 "Stamens 17–19; prominent ridges on outer sepals; rosette-like fascicled hairs of leaves with long spreading arms" "Hibbertia angulata" 364 "Stamens c. 12; rosette-like fascicled hairs on leaves with very short arms and usually reflexed" "Hibbertia ligulata" 365 "Carpels (3) 4 per flower" "Hibbertia oligocarpa" 365 "Carpels 2 (3) per flower" 366 366 "Petioles with long spreading hairs" 367 366 "Petioles with short hairs (sometimes appressed)" 377 367 "Pedicel filiform, 0.3–0.4 (–0.5) mm wide" 368 367 "Pedicel strap-like to broadly terete, robust, (0.6–) 0.8–1 (–1.2) mm wide" 373 368 "Leaf margins sinuate-lobed" "Hibbertia solanifolia" 368 "Leaf margins entire (except on juvenile leaves)" 369 369 "Leaf lamina linear-oblanceolate or oblong-oblanceolate" 370 369 "Leaf lamina elliptic to elliptic-obovate or broadly elliptic to almost circular" 371 370 "Adaxial leaf surface moderately dense with mainly rosette-like fascicled hairs; stamens 50–80" "Hibbertia cymosa" 370 "Adaxial leaf surface dense with mainly cactiform hairs; stamens (17–) 20–22" "Hibbertia scabrifolia" 371 "Bract broadly ovate, < 1.7 mm long" "Hibbertia circularis" 371 "Bract elliptic-lanceolate or oblong to oblanceolate, > 2.4 mm long" 372 372 "Leaf abaxial surface with lateral and some intramarginal veins not raised and not visible beneath the indumentum; bract distinctly shorter than and distinct from the outer sepals" "Hibbertia hesperia" 372 "Leaf abaxial surface with lateral and some intramarginal veins raised; bract as long and similar to the outer sepals" "Hibbertia tricornis" 373 "Leaf lamina oblong-elliptic, usually >3× longer than broad" 374 373 "Leaf lamina elliptic to elliptic-lanceolate, <3× as long as broad" 375 374 "Plant hirsute, with long silky fascicled hairs" "Hibbertia mollis" 374 "Plant velvety-pubescent, with short spreading to appressed fascicled hairs" "Hibbertia oblongata" 375 "Flowers terminal and at intervals of at least two nodes" "Hibbertia oblongata" 375 "Flowers axillary and at successive nodes" 376 376 "Leaf lamina ovate to elliptic, rarely obovate, entire or toothed when young; arms of hairs on adaxial leaf surface slightly unequal" "Hibbertia alopecota" 376 "Leaf lamina obovate, with 3 teeth; one branch of some hairs on the adaxial leaf surface up to 3 times longer than others" "Hibbertia tridentata" 377 "Leaf margins recurved to revolute on most leaves" 378 377 "Leaf margins flat (or unevenly recurved on some leaves)" 383 378 "Pedicel short and stout; leaf lamina oblanceolate" 379 378 "Pedicel filiform and long; leaf lamina linear, linear-oblanceolate" 380 379 "Flower buds ellipsoidal, 4.5–6 mm long; upper leaf surface densely hairy" "Hibbertia brevipedunculata" 379 "Flower buds spherical or pyriform, 3–4 mm in diameter; upper leaf surface sparse to moderately hairy" "Hibbertia rufociliata" 380 "Leaf margins strongly revolute and undersurface rarely visible" "Hibbertia pilulis" 380 "Leaf margins ± recurved and undersurface visible" 381 381 "Undersurface of leaves sparsely hairy, scarcely denser than upper leaf surface" "Hibbertia stelligera" 381 "Undersurface of leaves densely hairy, obviously more densely hairy below than above" 382 382 "Shrubs erect, spindly; flowers terminal; vestiture ± uniform" "Hibbertia malleolacea" 382 "Shrublets sprawling-spreading; flowers axillary; vestiture with distinctly larger hairs overtopping smaller ones" "Hibbertia extrorsa" 383 "Plants multistemmed from base" 384 383 "Plants with one to few stems at base (each often much branched above)" 387 384 "Flower buds ellipsoidal, 4.5–6 mm long" "Hibbertia brevipedunculata" 384 "Flower buds ± spherical, 3–4 mm long" 385 385 "Bracts ovate, pedicel-clasping; upper leaf surface with reflexed or appressed hairs" "Hibbertia caudice" 385 "Bracts linear-lanceolate, not clasping; upper leaf surface with erect-spreading hairs" 386 386 "Upper leaf surface with stubble-like, short hairs; stamens 30–36" "Hibbertia suffrutescens" 386 "Upper leaf surface velutinous with velvety hairs; stamens 42–50" "Hibbertia axillaris" 387 "Plants erect-spreading, with rigid-woody branches" 388 387 "Plants decumbent, with wiry branches" 390 388 "Lower surface of leaves with ciliate to entire scales" "Hibbertia ciliolata" 388 "Lower surface of leaves with rosette-like fascicled hairs" 389 389 "Hairs on leaves ± spreading or rarely reflexed; outer calyx shorter or scarcely longer than the inner ones and apex usually recurved" "Hibbertia oblongata" 389 "Hairs on leaves appressed; outer sepals distinctly longer than inner ones and erect-spreading" "Hibbertia auriculiflora" 390 "Adaxial leaf surface with fine hairs each with spreading arms at least as long as diameter of tubercle" 391 390 "Adaxial leaf surface with coarse hairs, each with reflexed or appressed arms ± as long as diameter of tubercle" 392 391 "Flowers axillary, born at successive nodes on branches" "Hibbertia auriculiflora" 391 "Flowers terminal, becoming leaf-opposed (not at successive nodes of branches)" "Hibbertia oblongata" 392 "Vestiture on undersurface of leaves is mixture of ciliate scales and similar fine appressed fascicled hairs" "Hibbertia orientalis" 392 "Vestiture on undersurface of leaves similar coarse hairs as on upper surface" 393 393 "Several decumbent branches from thickened base" "Hibbertia suffrutescens" 393 "Spreading shrub to 1 m tall" "Hibbertia oblongata" 394 "Leaf margins ± flat or recurved; distal part of outer sepals ± appressed, usually with unilaterally enlarged marginal cilia" 395 394 "Leaf margins ± incurved; distal part of outer sepals spreading to recurved, with scale-like unilaterally enlarged marginal scales" 406 395 "Calyx with brownish cilia; leaf axils with a few brown hairs especially near flowers" 396 395 "Calyx with pale hairs along margins; leaf axils without brown hairs" 397 396 "Flowers single, leaf-opposed along branches, with pedicel (12.3–) 14.5–34.2 mm long" "Hibbertia guttata" 396 "Flowers in clusters or rarely single, in terminal position on branches, with pedicel (0–) 1.5–6.0 (–8.8) mm long" "Hibbertia echiifolia" 397 "Leaf margins recurved to revolute; spreading shrublets" 398 397 "Leaf margins (blade) ± flat; perennials with decumbent to prostrate branches, rarely erect and then multistemmed" 399 398 "Anthers 10–12, each 2.5–3.5 mm long; pedicel (9.4–) 12–19 (–24.3) mm long" "Hibbertia stirlingii" 398 "Anthers 20–30, each 0.7–1.3 mm long; pedicel (3.4–) 6–9 (–11.6) mm long" "Hibbertia stelligera" 399 "Adaxial leaf surface with a row of scales along the margins and the central vein becoming glabrous" "Hibbertia pholidota" 399 "Adaxial leaf surface ± evenly covered with scales and/or hairs" 400 400 "Adaxial leaf surface ± evenly covered with hairs" 401 400 "Adaxial leaf surface ± evenly covered with scales" 403 401 "Abaxial surface with rosette-like to cactiform hairs, similar to those on the adaxial surface" "Hibbertia caudice" 401 "Abaxial leaf surface with cililate-peltate scales, differing from hairs on the adaxial surface" 402 402 "Adaxial leaf surface with fine hairs each with spreading arms at least as long as diameter of tubercle" "Hibbertia auriculiflora" 402 "Adaxial leaf surface with coarse hairs, each with reflexed or appressed arms ± as long as diameter of tubercle" "Hibbertia orientalis" 403 "Carpels 2" 404 403 "Carpels 3" 405 404 "Plants erect-spreading, multistemmed; buds ellipsoidal" "Hibbertia brevipedunculata" 404 "Plants with decumbent to prostrate branches; buds spherical to pyriform" "Hibbertia fractiflexa" 405 "Plants with decumbent to prostrate branches; buds spherical to pyriform" "Hibbertia persquamata" 405 "Plants erect-spreading, multistemmed; buds ellipsoidal" "Hibbertia caudice" 406 "Leaves linear and with 2–7 (–10) scales across the middle of the upper surface" 407 406 "Leaves elliptic to ovate, or if linear-elliptic then > 10 scales/hairs across at the middle of the upper leaf surface" 409 407 "Leaves irregularly incurved; upper leaf surface with large and small scales irregularly arranged with (3) 4–7 (–10) scales across the mid-upper leaf surface" "Hibbertia lepidota" 407 "Leaves regularly incurved (furrowed); upper leaf surface with subequal scales in 2 or 3 ± regular longitudinal rows" 408 408 "Upper leaf surface with 3 longitudinal rows of scales; leaf apex with mucro up to 0.5 mm long; plants decumbent" "Hibbertia sulcata" 408 "Upper leaf surface with 2 longitudinal rows of scales; mucro up to 1.3 mm long; plants multistemmed, erect" "Hibbertia marrawalina" 409 "Upper leaf surface densely covered with reflexed rosette-like broad-based fascicled hairs" 410 409 "Upper leaf surface covered with ciliate and/or entire scales" 412 410 "Stamens 10–12; low spreading dense shrublet with rigid woody branches" "Hibbertia brennanii" 410 "Stamens 18–26; prostrate to decumbent, or erect-spreading sparse shrublets with wiry branches" 411 411 "Shrublet prostrate to decumbent; outer sepals (3.2–) 3.5–4.1 (–4.7) mm long; anthers 0.9–1.2 mm long" "Hibbertia argyrochiton" 411 "Shrublet sparse erect-spreading; outer sepals 4.4–5.2 mm long; anthers 1.2–1.6 mm long" "Hibbertia ciliolata" 412 "Shrubs to 0.4 m tall, with prostrate to decumbent wiry branches" "Hibbertia argyrochiton" 412 "Shrubs to 1.5 m tall, with woody erect or spreading branches" 413 413 "Leaves linear-elliptic to linear-oblanceolate; stamens 18‚Äö?†??‚àö‚Ñ¢26" "Hibbertia ciliolata" 413 "Leaves elliptic to elliptic-oblanceolate or elliptic to broadly elliptic; stamens 26‚Äö?†??‚àö‚Ñ¢35" 414 414 "Leaves (0.9–) 2.5–4 (–4.8) mm broad, with acute apex; anthers 1.2‚Äö?†??‚àö‚Ñ¢1.4 mm long" "Hibbertia incurvata" 414 "Leaves (6.3–) 10–15 (–18.7) mm broad, with obtuse apex; anthers 2.3‚Äö?†??‚àö‚Ñ¢2.5 mm long" "Hibbertia pancerea" 415 "Petals yellow; staminodes, if present, several in a whorl outside of the fertile stamens" 416 415 "Petals white, pink or red; staminodes, if present, 2 within the fertile stamens" 418 416 "Stems ± terete; sepals pubescent (the outer ones rarely glabrous) with straight and hooked simple hairs; staminodes absent or c. 0.8 mm long; south-west W.A." "Hibbertia conspicua" 416 "Stems triquetrous; sepals glabrous; stamens surrounded by a whorl of staminodes 1.5–2 mm long; NT" 417 417 "Flowers solitary on stem, terminal, sessile or indistinctly pedicellate; inner sepals acute to acuminate" "Hibbertia goyderi" 417 "Flowers few to several per stem, axillary, distinctly pedicellate; inner sepals obtuse to rounded" "Hibbertia triquetra" 418 "Petals white to pink, caducous; corona (i.e. a membranous sheath around the androecium) absent" 419 418 "Petals red, persistent or if caducous then corona present" 423 419 "Stems triquetrous; androecium in 1 whorl of 2 stamens; WA" "Hibbertia paranthera" 419 "Stems terete to flattened; androecium in 2 whorls, the outer whorl with 7–10 stamens, the inner whorl with 2 stamens or staminodes; NT" 420 420 "Inner whorl of stamens fertile; staminal filaments smooth to sub-papillate; anthers (0.8–) 1–1.8 mm long" "Hibbertia cravenii" 420 "Inner whorl of stamens infertile (staminodes); staminal filaments papillate; anthers 0.3–0.5 (–0.7) mm long" 421 421 "All branchlets terete to compressed; stems dimorphic" "Hibbertia juncea" 421 "All branchlets flattened, or if stems dimorphic then branchlets of the shorter stems flattened and branchlets of the taller stems terete to flattened" 422 422 "Stems dimorphic, the shorter stems with branchlets 3–10 (–15) mm wide and the taller stems with terete to flattened branchlets distinctly narrower than those of the shorter stems" "Hibbertia complanata" 422 "Stems not dimorphic, the branchlets 5–20 (–35) mm wide" "Hibbertia dilatata" 423 "Corona (i.e. a membranous sheath around the androecium) present; stamens 7 or 9, in two whorls around the gynoecium; NT & WA" "Hibbertia sphenandra" 423 "Corona absent; stamens 4 or 5, in one whorl around the gynoecium; NT" 424 424 "Prostrate to decumbent shrubs to 0.3 m high; branchlets ± straight; stamens 5, the filaments gibbose" "Hibbertia haplostemona" 424 "Shrubs 1.5–2 m high; branchlets ± drooping; stamens 4 (5), the filaments ± flattened" "Hibbertia praestans"