228 LABIATA (Brown, Cooke and Skan). 
VI. Coleus.—Caly« unequally 5-toothed ; upper tooth much broader than the 
others, sometimes decurrent on the tube. Corolla-tube exserted, 
usually very abruptly bent at about the middle’; lower lip 
compressed-boat-shaped. Filaments all shortly united above their - 
insertion. 
VII. Pycnostachys.— Flowers in a very dense spike. Calyx with 5 equal rigid 
spine-like teeth. Corolla-tube exserted, deflexed ; lower lip com- 
pressed-boat-shaped. Filaments all free. 
VIII, Geniosporum.—Calyx 4-5-toothed, with the 3 upper teeth subequal or 
the middle one much larger than the others, not or scarcely 
decurrent on the tube, more rarely with 5 subequal teeth ; tube with 
prominent transverse veins when in fruit. Corolla very small ; tube 
exserted. 
XI. Hyptis—Calyx subequally 5-tootbed ; upper tooth not decurrent on the 
tube. Corolla small, 5-lobed ; 4 of the lobes flat, variously directed, 
the fifth compressed-concave or saccate. 
§§ Calyx falling away by a clean cut just above the base in fruit. 
IX. Kolanthus.—Calyx very small, truncate or with a very short truncate 
upp-r lobe and 2-3 minute lower teeth. Corolla with a much 
exserted tube, 2-lipped. Stamens all free. 
tt Corolla with 4 subequal or slightly unequal lobes, not distinctly 
2-lipped ; stamens included in the corolla-tube. 
X. Endostemon.—Calyx unequally 5-toothed; upper tooth suborbicular, 
very slightly decurrent on the tube. Corolla very small, straight. 
tt Calyx enlarged and fleshy in fruit ; upper pair of stamens reduced to 
staminodes with rudimentary anthers. 
XII. Hoslundia.— Flowers small. Calyx subequally 5-toothed, with the upper 
tooth slightly larger than the others, not decurrent on the tube. 
** Flowers unisexual, but with an ovary in the male flowers, which is never 
fertile, the sexes on different plants. 
XIII. Iboza,—Calyx minute. Corolla very small, subequally 5- (rarely 4-) 
lobed, or the lower lobe rather larger than the others. Stamens 
equally spreading. 
Tribe 2. SaTurIne#.—Caly« 5-10- (sometimes 13- rarely 15-) nerved, subequally 
5-toothed or 2-lipped. Corolla subequally or unequally 4-5-lobed or 
2-lipped ; lobes or lips usually very small and flat. Stamens (in the South 
African genera) 4, equal or the lower pair longer, distant, divergent or 
ascending under the upper lip; anthers 2-celled or 1-celled by confluence 
of the cells at the apex. 
XIV. Mentha.— Calyx 10-nerved. Corolla subequally 4-lobed. Stamens equal, 
erect, distant. 
XV. Micromeria.— Calyx 13- (rarely 15-) nerved. Corolla 2-lipped. Stamens 
didynamous, the lower pair longer, all ascending under the upper lip. 
Tribe 3. MonarpEx.—Calyx usually 2-lipped, more rarely subequally lobed. 
Corolla 2-lipped ; lips often large, the upper concave. Stamens 2, ascending 
under the upper lip; anthers often with a long connective bearing 1 or 2 
(sometimes 1 perfect and the other imperfect) more or less widely separated 
linear or oblong cells. 
- 
XVI. Salvia.—The only South African genus. Connective of the anthers jointed 
to a short flament, the upper part ascending and b-aring a perfect 
cell, the lower deflexed or horizontal and bearing a smaller pollini- 
ferous or empty cell, or sometimes quite naked. 
