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
Calyx of the male flowers with imbricate or open aestivation. 81
77. Petals absent. Disc none. Styles 2, undivided. Ovary-cells 2, each
with an incomplete partition.--Species 1. West Africa. =Martretia=
Beille
Petals small. Disc outside the stamens. Styles 2-parted. Ovary-cells
undivided. [Tribe BRIDELIEAE.] 78
78. Ovary 2-celled. Styles 2. Stamens borne upon a short androphore.
Leaf-veins of the third order almost parallel. 79
Ovary 3-celled. Styles 3. Disc of the female flowers cup-shaped. Fruit
a capsule. Leaf-veins of the third order netted. 80
79. Disc of the female flowers bottle-shaped, enclosing the ovary to
the top. Inflorescence paniculate.--Species 1. East Africa. (Under
_Bridelia_ Willd.) =Neogoetzea= Pax
Disc of the female flowers double, the outer cup-shaped, adhering
to the calyx, the inner consisting of 5 scales. Fruit usually a
drupe.--Species 25. Tropical and South-east Africa. Some species yield
dye-stuffs. (Including _Gentilia_ Beille) =Bridelia= Willd.
80. Receptacle of the male flowers elevated, forming a short
androphore.--Species 10. Tropics. =Cleistanthus= Hook.
Receptacle not prolonged into an androphore. Flowers clustered,
dioecious.--Species 1. Madagascar and Comoro Islands. =Stenonia= Baill.
81. (76.) Anthers 4-celled, even after opening, numerous. Filaments
united. Male flowers with 5 sepals and 3 valvate petals. Ovary
3-4-celled. Styles 3, undivided. Carpels enlarging and separating
after the time of flowering. Downy shrubs. Leaves without stipules.
Flowers in axillary glomerules.--Species 1. South-east Africa. [Tribe
JUNODIEAE.] =Junodia= Pax
Anthers 2-celled, at least after opening. 82
82. Seeds with a very small embryo. Fruit an oblong drupe. Ovary
2-celled. Styles 2, undivided. Male flowers with 9-18 free, central
stamens, without a disc and without a rudimentary pistil. Corolla none.
Flowers dioecious, in racemes. Trees.--Species 1. West Africa. [Tribe
DAPHNIPHYLLEAE] =Daphniphyllum= Blume
Seeds with a large embryo. Ovary-cells and styles usually 3; if 2, then
stamens 2-6 or surrounding a central disc. [Tribe PHYLLANTHEAE.] 83
83. Corolla present, at least in the flowers of one sex. 84
Corolla absent. 95
84. Stamens 8-10. Anthers opening outwards. Sepals, petals, and carpels
4-5. Flowers dioecious, in glomerules. Trees.--Species 1. South Africa.
Yields timber. =Heywoodia= Sim
Stamens 4-5. [Subtribe ANDRACHNINAE.] 85
85. Flowers 3-merous, dioecious. Petals exceeding the sepals in
the male flowers, absent in the female. Male flowers without a
rudimentary pistil. Stamens 6, each surrounded at the base by a gland;
anthers opening transversely. Ovary 4-5-celled. Shrubs. Flowers in
glomerules.--Species 1. East Africa (Somaliland). =Bricchettia= Pax
Flowers 4-6-merous. Male flowers with a rudimentary pistil. 86
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