1 "Mature fruits more or less fleshy, 4-30 mm long, entire or shallowly lobed or breaking into separate parts; plants tees, shrubs or perennial herbs more than 50 cm tall; inflorescences terminal corymbose panicles or thyrse-like" 2 1 "Mature fruits dry, sometimes enclosed in fleshy calyces, 0.5-4.5 mm long, usually lobed to the base, sometimes only shallowly lobed, breaking into 4 nutlets (or fewer by abortion); plants herbs or shrubs up to 4 m tall; inflorescences thyrse-like, raceme-like, or spicate" 6 2 "At least some leaves digitately compound with 3-7 leaflets; plants trees" Vitex 2 "All leaves with only 1 leaflet, this entire, dentate, or lobed; plants shrubs, herbs, or trees" 3 3 "Stamens included in or shortly exserted from the corolla tubes; corolla tubes 2-3.5 mm long; fruits not lobed, with 1 4-celled stone" Premna 3 "Stamens long exserted from the corolla tubes; corolla tubes at least 5 mm long; fruits often lobed, with 4 (or fewer by abortion) stones or 2 pairs of stones" 4 4 "Corollas more or less bilaterally symmetric, the limbs asymmetrically globose in bud; anthers basifixed" Rotheca 4 "Corollas almost radially symmetric, the limbs more or less symmetrical in bud; anthers versatile" 5 5 "Calyces glabrous, almost glabrous or puberulent; leaf blades 1.5-18(-60) cm long; filaments white" Clerodendron 5 "Calyces more or less densely pubescent; leaf blades 1.5-10 cm long; filaments pinkish to purple" Volkameria 6 "Calyces widely dilated to form a flat or widely funnel-shaped limb" 7 6 "Calyces not or only slightly dilated but often with outcurved lobes or sometimes with a recurved lower lip" 8 7 "Blades obovate, ovate, elliptic, or linear, upper surfaces not or hardly white tomentose; calyces entire or 4-10-lobed with lobes wider than long" Otostegia 7 "Blades orbicular, both surfaces whitish tomentose; calyces 4-5 lobed, lobes more than 3 mm long, about as long as wide" "Isoleucas {Isoleucas somala}" 8 "Calyces 2-lipped, both lips entire, usually dehiscent into 2 parts in fruit, the persistent ventral part spoon-shaped" 9 8 "Calyces 2-lipped with at least 1 lip lobed or (3-)5-10 lobed, indehiscent or sometimes circumscissile with a plate- to cup-shaped persistent basal part" 11 9 "Calyces with a transverse protruding outgrowth on the upper lip" Scutellaria 9 "Calyces without an outgrowth" 10 10 "Calyces not becoming inflated; nutlets tuberculate, not winged" "Renschia {Renschia heterotypica}" 10 "Calyces inflated in fruit; nutlets with a ring of stiff rays" "Tinnea {Tinnea aethiopica subsp. litoralis}" 11 "Fruiting calyces globular, fleshy, and orange when mature; corollas up to 5-8 mm long; stamens protruding beyond the mouth of the corolla tube, upper pair sterile" "Hoslundia {Hoslundia opposita}" 11 "Fruiting calyces tubular, obconic, campanulate, or subglobular, becoming dry when mature; stamens protruding or not beyond the mouth of the corolla tube, upper pair fertile" 12 12 "Calyces circumscissile at fruiting, the deciduous distal part much large than the remaining cup- or plate-shaped basal parts; inflorescences spicate" "Aeollanthus {Aeollanthus zanzibaricus}" 12 "Calyces not circumscissile, persistent or deciduous; inflorescences thyrse-like, raceme-like, or spicate" 13 13 "Calyces with subequal lobes or a 3-lobed upper lip, uppermost lobe not distinctly larger than the others, margins not decurrent down the tube; upper lips of corollas hooded or not, lower lobe, or middle lobe of lower lip flat or shallowly concave" 14 13 "Calyces with the middle lobe of the upper lip distinctly larger than the other lobes, its margins often decurrent down the tube; upper lips of the corollas not hooded; lower corolla lobes or lip boat-shaped or flat" 22 14 "Spikes with alternate or spirally arranged bracts; flower 1 per bract" Lavandula 14 "Spikes with opposite bracts; flowers 1-severalper bract" 15 15 "Upper corolla lips strongly hairy and bearded with whitish hairs and hooded; calyces 5-10-lobed" Leucas 15 "Upper corolla lips glabrous or hairy but not bearded, hooded or not; calyces 5-lobed" 16 16 "Lower pair of stamens with a large, transversely elongate connective ; upper pair of stamens sterile, more or less dwarfed; calyces 2-lipped, upper lips 3-lobed, lower lips 2-lobes" Salvia 16 "Lower pair of stamens with a minute connective; upper pair of stamens fertile and well-developed; calyces not distinctly 2-lipped, 5-lobed, lobes subequal" 17 17 "Each nutlet with a large scar extending from the base to above the middle; corollas 1-lipped, with a 5-lobed lower lip" Teucrium 17 "Each nutlet with a small scar, not extending above the middle; corollas 2-lipped with an entire or 2-lobed upper lip and a 3-lobed lower lip" 18 18 "Plants with branched hairs" Stachys 18 "Plants with simple hairs" 19 19 "Corolla lower lips with dentate middle lobes; stamens protruding beyond the mouth of the corolla tubes, upper stamens longer than lower stamens" Nepeta 19 "Corolla lower lips entire or emarginate; stamens not or only shortly protruding beyond the corolla tubes; upper stamens shorter than the lower stamens" 20 20 "Verticillasters with 2 flowers" Endostemon 20 "Verticillasters with 3-many flowers" 21 21 "Leaves leathery, margins entire and thickened; calyces 2.5-5 mm long in fruit; stamens protruding beyond the corolla tubes" "Micromeria {Micromeria imbricata}" 21 "Leaves thin, margins crenate of crenate-serrate; calyces 5-8 mm long in fruit; stamens not protruding beyond the corolla tubes" "Clinopodium {Clinopodium abyssinicum}" 22 "Upper stamens inserted on the proximal part of the corolla tubes, usually with an appendage or knee-bend near the base" Ocimum 22 "Upper stamens inserted on the distal part of the corolla tubes; without appendages or knee-bends" 23 23 "Corollas not 2-lipped, 4-5-lobed, lower lobes flat or almost so" Endostemon 23 "Corollas distinctly 2-lipped, with a 3-4-lobed upper lip and entire lower lip; lower lips/lobes concave, boat-shaped" 24 24 "Stamens hardly protruding beyond the corolla tubes; upper stamens sterile; verticillasters with 2 flowers" Fuerstia 24 "Stamens protruding beyond the corolla tubes; upper stamens fertile; verticillasters with 2-many flowers" 25 25 "Styles club-shaped and minutely 2-fid; fruiting calyces with the upper lobe decurrent; lateral calyx lobes as long as or shorter than the lower lobes" Orthosiphon 25 "Styles scarcely club-shaped, becoming distinctly 2-fid; fruiting calyces with upper lobe decurrent or not; lateral calyx lobes shorter than the lower lobes" 26 26 "Corollas 2-3 mm long, lower lips shallowly concave; plants annual herbs" Basilicum 26 "Corollas more than 3 mm long; lower lips boat-shaped or concave; plants perennial or annual herbs or subshrubs" 27 27 "Lower corolla lips much longer than the upper" Coleus 27 "Lower corolla lips subequal to or only slightly longer than the upper corolla lips" Equilabium