474 
Calyx 4 in. long 
Leaves orbicular . 
§§ Leaves petioled. 
Leaves oblong-lanceolate . . 
Leaves ovate-oblong. 
Hairs of stem and leaves few, rigid 
Hairs of stem and leaves many, soft 
Leaves ovate, 
Whorls few-flowered. 
Leaves nearly glabrous 
Leaves more or less hairy. 
Leaves very smal). 
Teeth of lower calyx-lip lanceolate 
Teeth of lower calyx-lip deltoid . 
Leaves about 1 in. long 
Leaves 13-2 in. long 
Whorls many-flowered. 
Whorls 2 
Whorls many. 
Upper whorls close 
Whorls all distant. 
Leaves small 
Leaves large . 
TTT Bracts large. 
§ Leaves sessile or subsessile. 
Leaves linear or lanceolate, 
Whorls few-flowered , 
Whorls many-flowered. 
Calyx about 4 in. long. 
Leaves small 
Leaves large 
Calyx Zin. long. . 
Calyx nearly lin, long . 
Leaves linear-oblong 
Leaves oblong-lanceolate. 
Fruit-calyx 4 in, long 
Fruit-calyx 1 in, long 
Leaves oblong. 
Whorls of flowers 1-2 
Whorls of flowers many, crow ded 
Leaves ovate. 
Whorls of flowers distant 
Whorls of flowers approximate 
Leaves obovate-cuneate . 
§§ Leaves petioled. 
Leaves lanceolate, 
Whorls of flowers solitary, terminal 
Whorls of flowers more than one. 
Bracts linear-subulate 
Bracts lanceolate 
Leaves oblong-lanceolate, 
Leaves slightly hairy . 
Leaves with numerous adpressed hairs, 
Leaves acute . 
CU, LABIATH (BAKER). 
[ Leucas. 
. 26. L. microphylla. 
. 27. L. orbicularis. 
28. L. decurvata. 
. 29. L. Junodit. 
. 80. ZL. lanata. 
. 81. L. glabrata. 
. 32, L. thymoides. 
. 33. L. pratensis. 
34, L. paucijuga. 
35. L. shirensis. 
36. DL. nepetoides. 
37. L. densiflora. 
. 88. L. trachyphylla. 
39. L. lamioides. 
. 40, L, Fleckii. 
. 41, L. Bakeri. 
. 42. DL, stricta. 
43, L, villosa, 
. 44, L. stenophylla. 
. 45. L. Nyassa. 
. 46. L. Descampsit. 
47, L. tettensis. 
. 48, ZL. oligocephala. 
. 49. L, calostachys. 
. 50, L. leucotricha. 
. 51. ZL, grandis. 
. 52. L. fasciculata. 
53. L. Carsonit. 
, 54, L. micrantha, 
. 55. L. bracteosa. 
56. L. defleza. 
57. L. Volkensit. 
