400 
Leaves glabrous or subglabrous, 
Leaves cordate at the base 
Leaves cuneate at the base 
Leaves slightly pubescent. 
Calyx-tube campanulate. 
Racemes dense 
Racemes very lax 
Calyx-tube oblong 
Leaves densely pubescent. 
Leaves membranous 
Leaves fleshy 
Leaves subtomentose on both surfaces 
Leaves orbicular. 
Leaves glabrous 
Leaves slightly pubescent 
Leaves laxly lanate . . 
++} Cymes not strictly sessile and umbellate. 
Cymes long scorpioid 
Cymes corymbose. 
Leaves oblong 
Leaves ovate. 
Calyx very small. 
Leaves cordate at the base 
Leaves cuneate at the base . 
Calyx 3-4 in. long. 
Racemes short. 
Leaves crenate. 
Lower calyx-teeth small 
Lower calyx-teeth large 
Leaves serrate . 
Racemes long, lax 
Calyx d—} in. long. 
Leaves small. 
Leaves glabrous 
Leaves sparsely clothed with long hairs 
Leaves pubescent 
Leaves large. 
Leaves clabrous 
Leaves sparsely clothed with adpressed hairs 
Leaves orbicular . 
Leaves rhomboid, deeply cut 
*Tsopon. Calyx-teeth subequal. 
+ Cymes sessile, umbellate. 
Leaves sessile or subsessile 
Herbaceous perennial. 
Shrubs with woody branches. 
Calyx 41, in. long in flower, 
Leaves entire 
Leaves crenate 
Calyx 4h, in. long 
Calyx 4—¢ in. long. 
Calyx-teeth lanceolate . 
Calyx-teeth linear 
Calyx 4—! in. long 
” 
Leaves opposite. 
Inflorescence racemose. 
CI, LABIATE (BAKER). 
[/ lectranthus. 
28. P. fragilis. 
. 4. 
P. 
P. 
P 
. P. violaceus. 
P 
P. 
P. 
29. P. sylvestris. 
. 380. P. punctatus. 
. 31. P. kamerunensis. 
32. P. Mannit. 
. 33. P. rupestris. 
. 84. P. quadridentatus. 
. 35. P. cyaneus. 
. 86. P. spharophyllus. 
37. P. microphyllus. 
38. P. paucicrenatus. 
. 89. P. herbaceus. 
. 4G. PB. bongensis. 
. P. glandulosus. 
. £L. elegans. 
. P. parvus. 
. P. JSohnstoniv. 
. P. pratensis. 
. P. urticoides. 
. chiradzulensis 
» usambarensis. 
. albus. 
. hylophilus. 
. orbicularis, 
. schizophyllus. 
P. lycopifolius. 
55. P. moschosmoides. 
56. P. cylindraceus. 
57. P. marrubioides. 
58. P. sanguineus. 
59. P. primulinus. 
60. P. densus. 
