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
109. Anthers longer than the filaments. Ovary long-stalked. Calyx
slit on one side. Corolla white; petals of the keel free. Fruit
long-stalked, falcate-ovate, turgid. Seeds oblong, with a thick aril.
Flowers in panicles. Bracteoles small.--Species 1. West Africa.
=Leucomphalus= Benth.
Anthers shorter than the filaments. Ovary nearly sessile. Fruit
compressed. Seeds ovate or orbicular.--Species 50. Tropical and
South-east Africa. Some of them yield timber (camwood), dye-stuffs, or
edible fruits. (Including _Bracteolaria_ Hochst.) =Baphia= Afz.
110. Petals of the keel free. Flowers in 5-10-flowered
racemes.--Species 1. West Africa. =Ormosia= Jacks.
Petals of the keel united. Flowers solitary or in 2-4-flowered
fascicles. 111
111. Corolla yellow; keel shortly beaked. Fruit compressed. Leaves
sessile, without stipules. Flowers solitary.--Species 10. South Africa.
The leaves are used as a substitute for tea or as a medicament.
=Cyclopia= Vent.
Corolla red or reddish-white; keel blunt. Ovary sessile. Fruit turgid.
Leaves short-stalked, with deciduous stipules. Hairy plants.--Species
20. South Africa. =Podalyria= Lam.
112. (106.) Leaves palmately trifoliolate. Corolla papilionaceous. 113
Leaves pinnate. 115
113. Petals subequal, yellow, those of the keel united. Ovary sessile
or nearly so. Fruit oblong, not septate. Erect shrubs. Leaves sessile,
leathery, exstipulate. Flowers solitary, axillary, with bracteoles.
(See 111.) =Cyclopia= Vent.
Petals of the keel free. Ovary stalked. Fruit linear. Leaves stalked,
stipulate. Flowers in racemes. 114
114. Standard shorter than the wings. Petals yellow. Fruit septate
between the seeds. Erect shrubs. Leaves herbaceous; stipules connate.
Flowers without bracteoles.--Species 2. North Africa. Poisonous and
medicinal. =Anagyris= L.
Standard as long as or longer than the wings. Petals clawed,
yellowish-white. Climbing shrubs. Leaves leathery. Flowers with small,
deciduous bracteoles.--Species 3. West Africa. (_Giganthemum_ Welw.)
=Camoënsia= Welw.
115. Corolla nearly regular; petals subequal. 116
Corolla papilionaceous; petals conspicuously unequal, at least one of
them (the standard) very different from the others. 118
116. Petals entire. Anthers linear, Ovules more than 2. (See 34.)
=Cadia= Forsk.
Petals 2-lobed or 2-cleft. Anthers ovate. Ovules 1-2. 117
117. Petals shortly lobed. Ovary short-stalked. Leaflets 9-11.
Flowers in racemes.--Species 1. Northern East Africa (Somaliland).
=Dicraeopetalum= Harms
Petals deeply left. Ovary long-stalked. Leaflets 13-19. Flowers in
panicles.--Species 2. Equatorial West Africa (Gaboon). =Amphimas= Pierre
118. Petals of the keel united. 119
Petals of the keel free. 121
119. Petals long-clawed, red. Ovary sessile. Ovules few. Fruit
compressed, not winged, leathery, dehiscing in two valves. Trees.
Flowers in racemes. Bracteoles none.--Species 1. South Africa and St.
Helena. Yields timber and is used as an ornamental plant. =Virgilia=
Lam.
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