346 LABIATE. 



36. SCUTELLARIA. Calyx in anthesis campanulate, gibbous, with a crest-like or 

 casque-shaped projection (answering to the upper sepal) on the back, closed after the 

 corolla falls, not inflated, at maturity of the fruit splitting to the base ; upper part not 

 rarely falling away ; the lower persistent. Corolla with long exserted tube, naked within ; 

 its anterior lobe or lower lip with the sides recurved. Anthers ciliate-pilose. Nutlets very 

 rarely wing-margined. 



37. SALIZARIA. Calyx globular or at first oblong, barely repand-bilabiate, not appen- 

 daged or gibbous on the back, much enlarged after anthesis, becoming vesicular-inflated 

 and reticulated. Nutlets depressed, tuberculate-roughened, marginless. Corolla, &c., of 

 Scutellaria. 



TRIBE VII. STACHYDEJE, Benth. (Lab., with part of Scutellarinece.') Stamens 4; 

 both pairs fertile, parallel and ascending under the concave and commonly galeate 

 upper lip of the bilabiate corolla (or in Marrubium included in the throat) ; the an- 

 terior (lower or outer) pair longer (except in a Phloin'u?) : anthers 2-celled or con- 

 fluently somewhat 1-celled. Calyx 5-10-nerved, or veiny. Bitter-aromatic or with 

 hardly aromatic herbage. 



* Calyx reticulate-veiny, membranaceous or cbartaceous, more or less inflated, deeply 

 bilabiate ; the lips flattened and closed in fruit ; upper lip plane and broad : corolla 

 with inflated throat from a more or less exserted tube. 



38. BRUNELLA. Calyx oblong, somewhat 10 nerved ; upper lip truncate, 3-toothed, its 

 teeth very broad and short; lower 2-cleft, its teeth lanceolate. Corolla with assurgent 

 tube, ringent lips, and slightly contracted orifice ; upper lip galeate, entire ; lower 3-lobed ; 

 its middle lobe dependent, rounded, concave, denticulate. Filaments, at least of the upper 

 pair, 2-toothed at the apex, one tooth naked, the other bearing the 2-celled anther, the 

 cells of which are divaricate. Nutlets smooth and glabrous. Inflorescence verticillas- 

 trate-capitate or spicate. 



39. BRAZORIA. Calyx short-campanulate, indistinctly nerved, mostly declined in fruit ; 

 both lips broad ; the upper 3-lobed and somewhat recurved; the lower 2-lobed and sur- 

 rected in fruit. Corolla with inflated throat, broad and barely concave upper lip, and 

 spreading 3-lobed lower one ; its lobes short and roundish. Filaments simple : anthers with 

 somewhat divergent cells. Nutlets smooth, glabrous or pubescent. Inflorescence race- 

 mose-spieate. 



* * Calyx more or less membranaceous and inflated or enlarged after flowering, obscurely 

 nerved, but somewhat veiny, 3-5-lobed, not bilabiate, open : corolla showy ; throat in- 

 flated ; upper lip more or less concave, not galeate : filaments more or less villous. 



40. PHYSOSTEGIA. Calyx nearly regular, and equally 5-toothed ; the tube campanu- 

 la te or oblong, hardly nerved or veined, moderately turgid in fruit. Corolla gradually 

 inflated upward; lips short ; the upper erect, rounded, entire; lower somewhat spreading, 

 3-parted, its roundish middle lobe emarginate. Anthers uniform ; the cells nearly parallel, 

 denticulate or slightly spinulose along the edges of the valves. Style almost equally 

 2-cleft at apex. Nutlets triquetrous, smooth and even. Flowers simply opposite in the 

 spikes, one under each bract. 



41. MACBRIDEA. Calyx tubular campanulate or funnelform, 3-lobed ; upper lobe nar- 

 rower, oblong, entire, obtuse; the two others broad (each of two combined sepals) and 

 2-lobed or entire. Corolla much inflated above, rather deeply bilabiate; upper lip round- 

 ish and fornicate, entire or nearly so; lower spreading, with 3 roundish lobes, middle one 

 larger. Anthers unconnected, hairy on the face; cells divergent. Style equally 2-toothed 

 at apex. Nutlets oblong, nervose. Inflorescence terminal and capitate, 2 or 3 flowers 

 under each bract. 



42. SYNANDRA. Calyx campanulate, inflated, membranaceous, deeply 4-cleft ; the lobes 

 lanceolate-subulate, somewhat equal ; the 2 lower slightly smaller, the fifth or uppermost 

 wanting. Corolla with narrow tube, inflated above into a very ventricose throat ; upper 

 lip somewhat fornicate, entire ; lower widely spreading, 3-lobed, the middle lobe emar- 

 ginate. Filaments very villous above : anthers nearly glabrous ; the cells divergent, the 

 contiguous ones of the upper stamens sterile and connate! Upper fork of the style very 

 short. Nutlets smooth, ovate-compressed, with lateral angles almost winged. Inflores- 

 cence simply and loose!}' leafy-spicate. 



* * * Calyx of firmer texture, distinctly 5-10-nerved or striate, 5-10-toothed. 



* Stamens included in the short tube of the corolla, the upper lip of which is merely 

 concave. 



43. MARRUBIUM. Calyx tubular-cylindraceous, strongly ribbed, and with 5 or 10 sub- 

 ulate or spinulose teeth. Tube of corolla included in the calyx ; lips short ; the upper 



