1 "Petals absent" 2 1 "Petals present" 3 2 "Upper leaf surface sparsely hairy with moderately long, simple hairs. Bracts glabrous or with much of outer surface glabrous" "Cryptandra subtilis" 2 "Upper leaf surface densely, minutely stellate-hairy. Bracts hairy on outer surface" "Cryptandra apetala var. apetala" 3 "Flowers shortly to obviously pedicellate, in an umbel-like cluster; pedicel 0.4–3 mm long, surrounded by 2–4 bracts" 4 3 "Flowers sessile or subsessile (pedicel less than 0.3 mm long), solitary or in a head-like cluster, with the base of the floral tube enclosed by (3)5–16 imbricate bracts" 7 4 "Leaves hairy on both surfaces of the blade and on petiole. Flowers with a hairy floral tube and 2-lobed stigma" "Cryptandra intratropica" 4 "Leaves glabrous on upper surface of blade and on petiole. Flowers differing from above choice in either being glabrous or having a 3-lobed stigma or both" 5 5 "Floral tube glabrous. Ovary and fruit 2- or less commonly 3-locular. Occurring mostly on coastal limestone" "Cryptandra mutila" 5 "Floral tube hairy. Ovary and fruit 3-locular. Occurring mostly inland" 6 6 "Branchlets not spinescent. Pedicels short and tending to be hidden. Disc glabrous" "Cryptandra inconspicua" 6 "Branchlets spinescent. Pedicels long and obvious. Disc hairy" "Cryptandra pungens" 7 "Stigma entire (with a single stigmatic surface) or 2-lobed. Fruit 1- or 2-locular" 8 7 "Stigma 3-lobed or with 3 lateral stigmatic surfaces. Fruit 3-locular" 10 8 "Sepals 0.6–0.8 mm long. Stigma entire. Ovary 1-locular. Fruit apparently indehiscent, with a flexible wall" "Cryptandra micrantha" 8 "Sepals 0.9–1.3 mm long. Stigma with 2 small but distinct lobes. Ovary 2-locular. Fruit a schizocarp, crustaceous" 9 9 "Flowers with a short and fairly uniform indumentum on outside of floral tube and sepals. Fruit rather densely stellate-hairy on inferior part" "Cryptandra distigma" 9 "Flowers with long dense indumentum on sepals and much less hairy or glabrous below. Fruit glabrous or with a few stellate hairs on inferior part" "Cryptandra spyridioides" 10 "Disc surrounding and spreading horizontally away from base of ovary in young flower, adnate or appressed to base of floral tube. Fruit prominently beaked, 6–7 mm long including apical beak. Seed uniformly coloured; aril very large, truncate, brightly coloured" 11 10 "Disc partially to fully obscuring ovary in young flower, adnate or appressed to ovary. Fruit not beaked, 2–5 mm long; apex rounded and indented. Seed darkened at base; aril small to moderately large, usually distinctly 3-lobed, pale or colourless" 12 11 "Bracts largely glabrous outside. Flowers glabrous outside except for the apex of the sepals" "Cryptandra connata" 11 "Bracts hairy outside. Flowers hairy outside" "Cryptandra imbricata" 12 "Young stems with a matted indumentum of long very fine hairs, the individual hairs too tangled for their type (whether simple or stellate) to be readily determined" 13 12 "Young stems glabrous, papillose or with simple and/or stellate hairs distinguishable, the indumentum not matted but often dense" 23 13 "Floral tube (in flower) 1.5–2 mm long, enclosed in c. 3 bracts (not including the involucral bracts surrounding the flower head); free part of tube 0.8–1 mm long. Style glabrous, papillose" "Cryptandra dielsii" 13 "Floral tube (in flower) either less than 1.2 mm long or enclosed in an involucre of 8–16 bracts. Style glabrous or hairy, not papillose" 14 14 "Bracts 3–8 per flower. Floral tube (in flower) 0.7–1.1 mm long; free part of tube 0.4–0.7 mm long" 15 14 "Bracts (8)9–16 per flower. Floral tube (in flower) 1.5–3.5 mm long; free part of tube 1–3 mm long" 17 15 "Leaves distinctly but shortly petiolate, the petiole 0.3–0.6 mm long and exserted from the stipule sheath.Sepals glabrous throughout or with a sparse indumentum of simple appressed hairs towards the apex" "Cryptandra graniticola" 15 "Leaves mostly appearing sessile, the petiole 0.1–0.3 mm long and usually hidden within the stipule sheath. Sepals hairy throughout or towards apex, usually with a tuft of hairs protruding from the apex" 16 16 "Flowers with largest hairs 0.4–0.8 mm long, the upper floral tube subglabrous in contrast with the very densely hairy sepals" "Cryptandra polyclada subsp. polyclada" 16 "Flowers with largest hairs 0.2–0.3 mm long, the upper floral tube and sepals both densely hairy" "Cryptandra polyclada subsp. aequabilis" 17 "Sepals with a protruding apical tuft of hairs 1 mm or more long and at least 4 times longer than indumentum on remainder of sepal. Ovary and basal part of style with hairs c. 1 mm long" "Cryptandra leucopogon" 17 "Sepals with hairs of uniform length or the apical hairs up to twice as long as indumentum on remainder of sepal, the apical hairs 0.1–0.5 mm long (except in C. crispula). Ovary and base of style with hairs 0.2–0.5 mm long" 18 18 "Leaves with apical point fairly erect. Free part of floral tube exserted well beyond involucre of bracts in flower" "Cryptandra exserta" 18 "Leaves with apical point recurved. Free part of floral tube usually hidden within involucre of bracts in flower" 19 19 "Petals with a claw 0.5–0.8 mm long. Style 3.5–5 mm long. Occurring well inland, in Eremaean and eastern part of Interzone" "Cryptandra aridicola" 19 "Petals with a claw 0.2–0.4 mm long. Style 0.8–3.5 mm long, if 3–3.5 mm long then restricted to South West Botanical Province and western part of Interzone" 20 20 "Leaves 0.8–2 mm long, rarely more. Sepals hairy throughout, sometimes with longer hairs concentrated towards apex but not forming well defined tufts and not exceeding 1 mm long" 21 20 "Leaves 2.5–4 mm long. Sepals usually either largely glabrous or with a well developed terminal tuft of hairs at least 1 mm long" 22 21 "Sepals 2.7–3.7 mm long. Floral tube (in flower) 2.3–3.5 mm long, enclosed in 12–14 bracts; free part of tube 1.8–2.8 mm long. Style 2.5–3.5 mm long" "Cryptandra minutifolia subsp. minutifolia" 21 "Sepals 1.5–2.5 mm long. Floral tube (in flower) 1.5–2.3 mm long, enclosed in (8)9–12 bracts; free part of tube 1–1.5 mm long. Style 0.8–1.8(2.5) mm long" "Cryptandra minutifolia subsp. brevistyla" 22 "Sepals often partially glabrous, with all hairs less than 0.5 mm long" "Cryptandra beverleyensis" 22 "Sepals very densely hairy, the apical hairs 1–1.5 mm long" "Cryptandra crispula" 23 "Free part of floral tube 0.3–0.7(0.8) mm long in flower (enlarging in fruit)" 24 23 "Free part of floral tube (0.9)1–3.5 mm long in flower (enlarging in fruit)" 33 24 "Flowers hairy outside on floral tube and sepals" 25 24 "Flowers glabrous outside throughout or in part (at least glabrous on free part of floral tube)" 29 25 "Branchlets spinescent except on young plants. Free part of floral tube and sepals with simple but no stellate hairs" "Cryptandra craigiae" 25 "Branchlets not spinescent. Free part of floral tube and sepals densely covered by a mixture of stellate and simple hairs" 26 26 "Petals usually absent, if present then readily shed and with the lamina reduced so that the claw tends to be as long as the lamina" "Cryptandra apetala var. apetala" 26 "Petals present, fully enclosing an anther, the claw much shorter than the lamina" 27 27 "Young stems with appressed to spreading simple hairs 0.3–1 mm long. Leaves glabrous, with minute broad protrusions or with simple hairs up to 0.8 mm long" "Cryptandra nutans" 27 "Young stems minutely stellate-hairy (in C. apetala sometimes also with larger simple hairs 0.2–0.4 mm long). Leaves minutely stellate- hairy or glabrous" 28 28 "Leaves with a fairly erect apex. Petals with a claw 0.2–0.4 mm long" "Cryptandra apetala var. anomala" 28 "Leaves with a prominently recurved apex. Petals with a claw 0.1–0.15 mm long" "Cryptandra recurva" 29 "Sepals about as long as free part of floral tube, recurved" 30 29 "Sepals (in flower) distinctly longer (usually two to four times) than free part of floral tube, usually spreading" 31 30 "Spinescent branchlets absent or long (10–20 mm), with at least one node. Young stems usually hairy, with dark bark peeling in narrow strips and patches" "Cryptandra scoparia" 30 "Spinescent branchlets numerous, c. 6 mm long, nodeless or with only one node. Stems glabrous or glabrescent, with pale bark peeling in large strips" "Cryptandra multispina" 31 "Sepals hairy throughout or in distal half; simple hairs present" "Cryptandra myriantha" 31 "Sepals glabrous or with a few scattered stellate hairs" 32 32 "Sepals at least four times as long as free part of floral tube. Fruit with coarse hairs over 0.5 mm long on summit" "Cryptandra glabriflora" 32 "Sepals about twice as long as free part of floral tube. Fruit glabrous on superior part, except for the stellate-hairy disc" "Cryptandra arbutiflora var. pygmaea" 33 "Floral tube glabrous" 34 33 "Floral tube hairy" 41 34 "Flowers in dense clusters. Sepals densely hairy towards apex" "Cryptandra congesta" 34 "Flowers loosely arranged in leafy spike-like inflorescences. Sepals glabrous" 35 35 "Leaves densely stellate-hairy on lower surface, sometimes becoming glabrous with age. Peduncles sparsely to densely stellate-hairy" 36 35 "Young leaves glabrous on lower surface or with simple hairs along the midvein. Peduncles glabrous" 38 36 "Young stems with scattered stellate hairs less than 0.1 mm long" "Cryptandra stellulata" 36 "Young stems with a dense or moderately dense indumentum of stellate hairs 0.2–0.3 mm long or with mainly simple hairs" 37 37 "Young stems with hairs mostly stellate. Floral tube 4–4.5 mm long. Fruit largely inferior" "Cryptandra pendula" 37 "Young stems with hairs mostly simple. Floral tube 1.7–3 mm long. Fruit c. half-inferior to largely superior" "Cryptandra intermedia" 38 "Stem hairs recurved. Floral tube 1.2–1.8(2.3) mm long. Fruit usually with scattered large stellate hairs on superior part" "Cryptandra arbutiflora var. borealis" 38 "Stem hairs usually antrorse or patent. Floral tube usually either less than 1.5 mm long or 2.5–4.5 mm long. Fruit nearly always glabrous" 39 39 "Dwarf shrubs 0.05–0.25 m high. Floral tube c. 1 mm long" "Cryptandra arbutiflora var. pygmaea" 39 "Shrubs 0.1–1 m high. Floral tube 1.2–4.5 mm long" 40 40 "Ovary largely superior in fruit, within a broad floral tube. Occurring inland of var. tubulosa on granite or laterite" "Cryptandra arbutiflora var. arbutiflora" 40 "Ovary about half inferior in fruit, within a slender floral tube. Occurring on the west coast on limestone and in the south on granite" "Cryptandra arbutiflora var. tubulosa" 41 "Leaves silvery pale green, densely hairy on blade and petiole. Occurring in the Pilbara region" "Cryptandra monticola" 41 "Leaves green, glabrous or subglabrous on upper surface of blade and petiole. Distribution south-western" 42 42 "Stipules prominent, 4–6.5 mm long. Leaves with a prominent recurved apical point 0.2–0.5 mm long. Floral tube (in flower) 3–3.5 mm long" "Cryptandra intonsa" 42 "Stipules small, 0.7–1.4 mm long. Leaves with a minute mucro or obtuse. Floral tube (in flower) 1.4–2.5 mm long" 43 43 "Free part of floral tube 1.5–2 mm long in flower. Style 2–2.5 mm long" "Cryptandra nola" 43 "Free part of floral tube 0.9–1.4 mm long in flower. Style 0.7–1.3 mm long" "Cryptandra wilsonii"