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
87. (80.) Well developed petal 1; sometimes 2-4 rudimentary petals in
addition. Trees. 88
Well developed petals 3-6. Leaves abruptly pinnate. 93
88. Petal sessile. Sepals 4. Leaves abruptly pinnate. 89
Petal with a long claw. 90
89. Receptacle minute. Sepals scale-like. Petal orbicular. Stamens
3, short. Ovary with a short stalk. Ovules 4. Stigma truncate.
Bracteoles large, enclosing the bud, persistent at flowering. (See 65.)
=Cryptosepalum= Benth.
Receptacle rather large, narrowly top-shaped. Sepals large, coloured.
Petal oblong. Stamens 10, long. Ovary with a long stalk. Ovules
numerous. Stigma capitate. Bracteoles falling off early.--Species 3.
West Africa. They yield timber and an aromatic resin. =Daniella= Benn.
90. Fertile stamens 3. 91
Fertile stamens 5-10. 92
91. Bracteoles enclosing the bud, persisting at flowering. Petal
folded together in the bud. Flowers small or middle-sized. (See 67.)
=Macrolobium= Schreb.
Bracteoles shorter than the bud, falling off during the time of
flowering. Receptacle elongated. Sepals 4. Fruit oblong. Flowers
rather large.--Species 1. Madagascar and neighbouring islands. It
yields timber, edible seeds, and medicaments. (Under _Afzelia_ Smith).
=Intsia= Thouars
92. Fertile stamens 6-8. Sepals 4. Bracteoles shorter than the bud.
Seed with an aril.--Species 4. Central Africa to Delagoa Bay. They
yield timber; the aril is edible, the seeds are poisonous and used
medicinally. (Under _Intsia_ Thouars) =Afzelia= Smith
Fertile stamens 5 or 10. Sepals usually 5. Petal folded in bud,
whitish. Bracteoles enclosing the bud.--Species 15. Central Africa. The
wood and the bark are used, the latter for making cloth. =Berlinia=
Soland.
93. (87.) Sepals 6-7. Petals 6, subequal. Fertile stamens 6-8, barren
ones 4-7. Trees.--Species 1. East Africa. =Englerodendron= Harms
Sepals 4-5. 94
94. Sepals 5. Trees. 95
Sepals 4. 96
95. Petals more or less unequal, white or yellowish. Stamens 5 or 10.
Fruit dehiscent. Bracteoles enclosing the bud. (See 92.) =Berlinia=
Soland.
Petals subequal, red. Stamens 10. Fruit winged, indehiscent. Seeds
pendulous.--Species 1. Madagascar. =Bathiaea= Drake
96. Fertile stamens 3. Petals unequal, 3 of them larger than the other
two. Trees. 97
Fertile stamens 10 or more. 98
97. Filaments united nearly half their length. Petals yellowish or
red-striped. Fruit indehiscent. Leaves with many pairs of leaflets.
Bracteoles narrow, falling off early.--Species 3. Tropics. They yield
timber, tanning and dyeing materials, edible fruits from which drinks
and medicaments are prepared, and oily seeds. =Tamarindus= L.
Filaments free. Fruit dehiscent. Bracteoles large, enclosing the bud.
(See 67.) =Macrolobium= Schreb.
98. Stamens numerous, united at the base. Anthers linear. Petals
subequal. Bracteoles enclosing the bud. Trees.--Species 1. West Africa.
=Polystemonanthus= Harms
Stamens 10. 99
99. Bracteoles large, enclosing the bud. 100
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