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
86. Ovary 5-celled. Styles 5, two-cleft. Disc cup-shaped, lobed in
the male flowers, entire in the female. Stamens inserted upon a short
androphore. Petals exceeding the sepals. Flowers fascicled, monoecious.
Shrubs.--Species 1. Seychelles. (Under _Savia_ Willd.) =Wielandia=
Baill.
Ovary 3-celled. Styles or sessile stigmas 3. 87
87. Styles very short, undivided. 88
Styles well developed, two-cleft. 90
88. Flowers monoecious, in spikes or fascicles. Petals short.
Rudimentary pistil 3-lobed. Stigmas thick. Seeds solitary in each cell,
exalbuminous, with thick-fleshy cotyledons. Trees or shrubs.--Species
6. Tropics. =Amanoa= Aubl.
Flowers dioecious, in panicles. Fruit a loculicidal capsule. Trees. 89
89. Panicles terminal. Petals small. Disc of the male flowers of
separate glands. Rudimentary pistil obconical, flattened at the top.
Seeds with a spongy coat, scanty albumen, and flat cotyledons.--Species
2. Equatorial regions. =Megabaria= Pierre
Panicles axillary. Petals large. Disc of the male flowers cupular.
Rudimentary pistil narrowed above. Seeds with copious albumen.--Species
1. Equatorial West Africa. =Centroplacus= Pierre
90. Stamens inserted upon a prolonged, stalk-like receptacle. Petals
shorter than the sepals. Disc and ovary densely woolly. Seeds with
scanty albumen and folded cotyledons. Shrubs. Flowers dioecious, the
male ones fascicled, the female solitary.--Species 1. South Africa.
=Lachnostylis= Turcz.
Stamens inserted upon a receptacle which is not stalk-like. 91
91. Stamens inserted upon the disc. Seeds exalbuminous, with folded
cotyledons. Trees or shrubs. Flowers in fascicles.--Species 1.
Equatorial West Africa. (_Pentabrachium_ Muell. Arg.) =Actephila= Blume
Stamens inserted inside the disc round the rudimentary pistil. Seeds
with copious albumen. 92
92. Male flowers without a corolla, with 4 sepals and 6 stamens. Female
flowers with 2 sepals and 5 petals. Flowers dioecious, the male in
glomerules, the female solitary. Shrubs or trees.--Species 1. West
Africa (Congo). =Neochevaliera= Beille
Male flowers with a corolla, rarely without, but then with 5 sepals and
5 stamens. Flowers dioecious, the male in spikes, racemes, or panicles,
or monoecious. 93
93. Lobes of the disc alternating with the petals. Flowers monoecious,
in glomerules or the female solitary. Shrubs.--Species 8. Madagascar
and neighbouring islands. (Under _Savia_ Willd.) =Petalodiscus= Baill.
Lobes of the disc opposite the petals. Male flowers in spikes, racemes,
or fascicles. 94
94. Flowers monoecious. Anther-halves adnate lengthwise. Rudimentary
pistil of the male flowers columnar or 3-partite. Styles short. Herbs,
undershrubs, or shrubs.--Species 6. =Andrachne= L.
Flowers dioecious. Anther-halves at first suspended from the thick
connective. Rudimentary pistil thick, usually obovate. Styles long.
Shrubs or trees.--Species 9. West Africa and Madagascar. =Thecacoris=
Juss.
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