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
Leaves unequally pinnate, digitate, or unifoliolate. Style glabrous. 129
129. Leaflets minutely toothed, 1 or 3, very rarely more. Stipules
adnate to the leaf-stalk. Flowers solitary or in racemes. Calyx-lobes
long, subequal. Petals short-clawed. Anthers usually of two kinds.
Ovary more or less distinctly stalked. Fruit dehiscing by two
valves.--Species 60. North Africa and Abyssinia. Some are used as
vegetables or in medicine. =Ononis= L.
Leaflets entire. Stipules small or wanting. Flowers in heads or umbels,
sometimes almost solitary. Petals long-clawed. Anthers all alike. Fruit
not or tardily dehiscing. 130
130. Ovary sessile. Ovules 2. Fruit protruding beyond the calyx,
linear, shortly or not beaked, slightly 4-angled, spirally coiled.
Silky herbs. Flowers in umbels, very small, reddish-yellow, without
bracteoles.--Species 1. Abyssinia. =Helminthocarpum= A. Rich.
Ovary more or less distinctly stalked. Fruit enclosed by the calyx
or slightly protruding; in the latter case beaked. Flowers in heads
or nearly solitary.--Species 12. North Africa and Abyssinia. Some
species (especially _A. Vulneraria_ L.) are used as fodder-, dyeing-,
medicinal-, or ornamental plants. (Including _Cornicina_ Boiss.,
_Dorycnopsis_ Boiss., and _Physanthyllis_ Boiss.) =Anthyllis= L.
131. (127.) Keel beaked. 132
Keel blunt or somewhat pointed. 138
132. Ovary short-stalked. Ovules 2. Calyx deeply and equally divided.
Corolla yellow. Fruit spirally coiled, flat, margined, indehiscent.
Herbs. Lowermost leaves simple, with adnate stipules, upper pinnate,
without stipules. Flowers in few-flowered heads.--Species 1. North
Africa. (_Circinus_ Medik.) =Hymenocarpos= Savi
Ovary sessile. Ovules more than two. Calyx more or less unequally
divided. Flowers solitary or in umbels. 133
133. Leaves simple, undivided. Stipules adnate to the leafstalk. Upper
calyx-teeth united high up. Petals long-clawed, yellow. Fruit spirally
coiled, almost terete, ribbed. Herbs.--Species 5. North Africa and
Abyssinia. =Scorpiurus= L.
Leaves pinnate, sometimes apparently digitate. 134
134. Fruit jointed. 135
Fruit not jointed. Herbs or undershrubs. 136
135. Joints of the fruit and seeds curved. Fruit more or less
flattened, with the upper edge notched at each seed. Corolla yellow.
Leaves with 5 or more leaflets.--Species 9. North Africa. =Hippocrepis=
L.
Joints of the fruit and seeds straight, oblong. Fruit not or slightly
flattened. Leaves with 3 or more leaflets, stipulate.--Species 12.
North Africa. Some species are poisonous or used as ornamental or
medicinal plants. =Coronilla= L.
136. Leaves with many leaflets. Stipules small, membranous. Corolla
yellow. Fruit flat, slightly curved. Seeds quadrate. Glabrous
herbs.--Species 1. North Africa. (_Bonaveria_ Scop., _Securidaca_
Gaertn.). =Securigera= DC.
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