350 CI. LABIATE (BAKER.) [ Platystoma. 
Upper Guinea. Sierra Leone, Morson! Liberia: Cape Palmas, Ansell ! 
Gold Coast, Rurton! Aquapim Mountains, Thonning ! Lagos: Abeoknta, Irving, 
83! Niger Territory: Benin, Beauvois! Nupe; Jeba, Barter! Lower Niger, 
Onitsa, Barter, 99! Stirling Hill, Ansell! Niger Delta ; Nun River, Vogel, 10! 
Cameroons : Batanga, Bates, 15! Bipinde, Zenker, 1218! Fernando Po, Vogel, 213! 
Barter ! 
Nile Land. Abyssinia, Petit! British East Africa: Jur ; Gir, Schweinfurth, 
2552! 
Lower Guinea. Island of St. Thomas, Moller § Quintas. Lower Congo : 
Lutete, Hens, 302! and without precise locality, Cabra, 106. Angola : Bembe, 
Monteiro! Golungo Alto, Welwitsch, 5534! 5535! 5536! 5581! 
Mozamb. Dist. (German East Africa: Usambara ; Lutindi, Holst, 3255 ! 
Gonja, Holst, 4226! Kilimanjaro, 5000-6000 ft., Volkens, 580! Johnston! British 
Central Africa: Nyasaland ; between the River Songwe and Karonga, 1700-2000 ft., 
Whyte, 71! 
Also in India. 
2, P. buettnerianum, Briquet in Engl. Jahrb. xix. 166. A 
much-branched herb, with square thinly pubescent branches. Leaves 
shortly petioled, ovate-rhomboid, 1 in. long, acute, crenate above the 
entire cuneate base, membranous, green and glabrous on both surfaces. 
Cymes sessile, forming a lax simple terminal raceme 2-3 in. long; 
pedicels short ; lower bracts ovate, foliaceous. Calyx J, in. long ; lips 
ovate, the upper rather longer, recurved. Corolla protruding } in. 
from the throat of the calyx. Stamens not exserted. 
Lower Guinea. Lower Congo : Leopoldville, at Stanley Pool, Bittner, 449! 
“ 
4, GENIOSPORUM, Wall. ; Benth. et Hook. f. Gen. Plant. ii. 
1172. 
Calyx suberect or declinate in fruit ; tube often transversely rugose ; 
teeth subequal or the upper one broader, not decurrent. Corolla-tube 
scarcely longer than the calyx ; lips subequal ; lower entire, not concave. 
Stamens 4, didynamous, declinate ; filaments not appendiculate ; anthers 
I-celled. Disk glandular. Style shortly bifid. Nucules ovoid, smooth 
or minutely punctate.—Erect or procumbent, glabrous or pubescent, 
herbs. Whorls many-flowered, forming dense terminal racemes : lower 
bracts often large and whitish or coloured. Flowers very small. 
Species 10-12. Also in Madagascar and Tropical Asia. 
Leaves oblong. 
Leaves sessile 
Leaves shortly petioled 
Leaves distinctly petioled 
Leaves obovate-cuneate 
Leaves ovate. 
Pubescence grey. 
. G. paniculatum. 
. G. rotundifolium. 
. G. discolor. 
G. lasiostachyum. 
ONE 
Leaves obscurely pubescent beneath 5. G. angolense. 
Leaves densely pubescent beneath 6. G. paludosum. 
Pubescence violet or ferruginous 47. @. scabridum. 
Pubescence reddish . . . 8. G. affine. 
