The flowering plants of Africa: An analytical key to the genera of African phanerogramsThonner, Franz
Science
The flowering plants of Africa: An analytical key to the genera of African phanerograms
Thonner, Franz
Angiosperms -- Africa; Plants -- Africa
292. Corolla yellowish; keel as long as the wings; standard not
auricled. Flowers two or several together in the axils of the leaves,
subsessile. Fruit ripening under ground.--Species 1. West Africa.
Cultivated for its edible seeds. =Kerstingiella= Harms
Corolla red; keel shorter than the wings; standard slightly auricled.
Flowers in axillary racemes or false-racemes. Fruit ripening above
ground. (See 266.) =Glycine= L.
293. Calyx-lobes very unequal. Standard oblong or ovate; wings shorter
than the keel, auricled at the base. Style downy below.--Species 4.
Tropics. =Cylista= Ait.
Calyx-lobes about equal, but the two upper ones sometimes more or less
united. 294
294. Seeds oblong, without an outgrowth at the hilum; hilum linear, the
funicle affixed at its apex. Upper calyx-teeth free or shortly united.
Standard oblong or obovate. Erect or decumbent, rarely twining plants.
(See 239.) =Eriosema= DC.
Seeds orbicular or reniform, with a more or less distinct outgrowth
at the hilum; hilum orbicular or oblong, the funicle affixed in the
middle. Upper calyx-teeth more or less united. Standard orbicular or
obovate. Twining or decumbent, more rarely erect plants. (See 239.)
=Rhynchosia= Lour.
295. (287.) Calyx entire or obscurely toothed, gibbous at the base.
Corolla yellow or red. Ovary surrounded at the base by a tubular disc.
Style broadened in the middle. Fruit flattened, 2-valved. Twining
herbs. Bracteoles present.--Species 1. South and East Africa and
Madagascar. =Dumasia= DC.
Calyx distinctly toothed. 296
296. Upper sepals wholly united; hence calyx 4-toothed or 4-cleft.
Twining herbs. 297
Upper sepals more or less separate; calyx 5-toothed or 5-cleft. 298
297. Calyx-lobes short. Corolla red; keel shorter than the wings.
Rachis of the inflorescence not thickened at the insertion of the
pedicels. Bracts striate.--Species 1. Mountains of Central Africa.
=Shuteria= Wight & Arn.
Calyx-lobes long. Corolla yellow; keel as long as or longer than the
wings. Rachis of the inflorescence thickened at the insertion of the
pedicels. Bracts bristle-like.--Species 2. East Africa to Natal and
Mascarene Islands. =Galactia= P. Browne
298. Wings free from the keel. Flowers small, red. Leaflets large. 299
Wings adhering to the keel. 300
299. Fruit septate between the seeds, oblong. Seeds globose. Ovules
3-5. Style thickened below. Standard auricled at the base.--Species 1.
German South-west Africa. =Neorautanenia= Schinz
Fruit not septate between the seeds, flat, with transversely veined
valves. Seeds reniform. Style awl-shaped. Upper calyx-lobes united
high up. Hairy plants.--Species 5. Central and South-east Africa
(_Anarthrosyne_ E. Mey.) =Pseudarthria= Wight & Arn.
300. Bracteoles wanting. Keel gibbous or spurred on each side.
Connective ending in a gland, a point, or a tuft of hairs. Plants with
appressed hairs fixed by the middle. (See 215.) =Indigofera= L.
Bracteoles present. 301
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