334 CII. LABIATA (BAKER). 
Calyx with 5 subequal teeth. 
Corolla not distinctly bilabiate. 
Anther-cells divaricate . . . . . . 22. ELSHOLTZIA. 
Anther-cells parallel . . . . . . 23. MENTHA. 
Corolla distinctly bilabiate . . . . . 24, MICROMERIA. 
Calyx distinctly bilabiate. 
Calyx-teeth large . . . . . . . 25, THYMUS. 
Calyx-teeth small . . . . . . . 26. CALAMINTHA 
TrisE II]. Monardeve.—Stamens 2, arcuate. Upper 
lip of the corolla large, concave. Nucules with a 
small basal areole. 
Anthers 2-celled . . . . . . . . 27, MERIANDRA. 
Anthers 1-celled  . . . . . . . . 28. SALVIA. 
TriBE IV. NWepetege.—Stamens 4, arcuate, the upper 
pair longest. Upper lip of the corolla large, con- 
cave. Nucules with a small basal areole. 
The only genus. . . . . . . . 29, NEPETA. 
TRIBE V. Stachydeze.—Siamens 4, arcuate, the lower 
pair longest. Upper lip of corolla large, concave. 
Nucules with a small basal areole. 
Calyx with 2 entire lips . . . . . . . 
Calyx 5-10-toothed, sometimes sub-bilabiate, but then lips 
2- or 3- or more-toothed. 
Calyx 5-toothed 
Nucules scaly at the tip . . . . . . 31. ACHYROSPERMUM. 
Nucules naked at the tip. 
Disk equal. 
30. ScUTELLARIA. 
Corolla-tube included. Calyx 5-10-ribbed . . 32. STACHYS. 
Corolla-tube exserted. Calyx 5-ribbed . 33, LAMIUM. 
Disk oblique . . 34, Lasrocorys. 
Calyx 8-10-toothed, rarely with fewer teeth. 
Calyx not bilabiate. 
Stamens included in the corolla-tube . . 35. ACROTOME. 
Stamens exserted from the corolla-tube. 
Lobes of style subequal. . ; . . 36. BALLOTA. 
Lobes of style unequal. 
Lower lip of corolla long . . . . 37. LEUCAS. 
Lower lip of corolla short. . . . 88. LEONOTIS. 
Calyx-limb bilabiate, scariose . . . . . 89. OTOSTEGIA. 
TRIBE VI. Ajugoidese.— Stamens 4, arcuate. Upper 
lip of corolla short. Nucules obovoid, reticulated, 
with a broad lateral areole. 
Calyx bilabiate, very accrescent. 
Corolla-tube scarcely longer than the calyx . . . 40. TINNEA. 
Corolla-tube much longer than the calyx. . . 41. RENSCHTA, 
Calyx 5-toothed, scarcely accrescent. 
Upper lip of corolla truncate . . . . . 42, TEUCRIUM. 
Upper lip of corolla erect, bifid. . . . . 43, AJUGA. 
1. OCIMUM, Linn.; Benth. et Hook. f. Gen. Plant, ii. 1171. 
Calyx deflexed in fruit; tube usually campanulate ; upper ip 
orbicular or ovate, the edges often decurrent ; lateral lobes usually 
