Plectranthus. | CII, LABIATE (BAKER). 401 
Leaves distinctly petioled. 
Annuals. . . . . . . . 61. P. stenosiphon. 
Perennial herbs. 
Raceme dense . . . . . . 62. P, betonicafolius, 
Raceme lax. 
Hairs long and bristly . . . . . 63. P. horridus. 
Hairs short and soft. . . . . 64. P. pubescens. 
Undershrub . . . . . . . 65. P. nyikensis, 
+tCymes not strictly umbellate. Inflorescence more or less 
paniculate. 
Lower lip of the corolla large. 
Cymes dense, shortly peduncled. 
Cymes 3-flowered  . . . . . . 66. P. triflorus. 
Cymes many-flowered . . . . . 67. P. matabelensis. 
Cymes laxly corymbose. 
Shrub, with woody branches. . . . 68. P. defoliatus. 
Herbs, 
Cymes 3-flowered. . 
Fruit-calyx 2 in, long . . . . 69, P. kondowensis. 
Fruit-calyx 4 in. long. . . . 10, PB. Zenkert. 
Cymes many-flowered . . . . . 71. P. Schimpert. 
Lower lip of corolla small. , 
Corolla 2 in, long . . . . . . 72, P. ramosissimus. 
Corolla + in. long, . 
Stamens shortly exserted . . . . 73. P. hoslundioides. 
Stamens not exserted . : . : _ 74, P. Whytei. 
Corolla 1 in, long 75. P. paniculatus. 
“*SYMPHOSTEMON, Upper tooth of calyx ovate ; lower 
triangular, Filaments shortly united. Leaves 
alternate . . . . . . . . 76. P. insolitus. 
1. P. melanocarpus, (iirke in Hugl. Jahrb, xix. 209. Stems 
erect, branched, tetragonous, clothed with long very thick spreading 
airs. Leaves unknown. Inflorescence a much-branched panicle ; 
flowers solitary in the axils of the lanceolate-subulate bracts ; pedicels 
Pay, glandular-pubescent, as are the calyx and axis. Fruit-calyx 
4-3 In. long, tubular, curved ; upper tooth orbicular, obtuse ; lateral 
longer, lanceolate, acuminate; lowest Jongest, lanceolate-subulate, 
acuminate. 
Mozamb,. Dist. (German East Africa; Masai Steppe, Fischer, 511. 
2. P, tetragonus, (iirke in Higl. Jahrb. xix. 209. Stems erect, 
branched, tetragonous, 3 ft. long; glabrescent below, clothed upwards 
with lone thi , ye pase . blong. narrowed into a 
ong very thick spreading hairs. Leaves oblong, né h sides 
ong petiole, acute, 3-4 in. long, 2-2} in. broad, glabrous on both ‘ es or 
‘ry on the ribs beneath. Inflorescence a racemose panicle ; owns 
‘olitary in the axils of the round-ovate acuminate bracts ; rhac he 
and pedicels shortly glandular-pubescent. Fruit-calyx ; 1n. long ; tube 
‘ampanulate ; Upper tooth round-ovate, acuminate, with slightly 
VOL, vy. 2 D 
