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
Fruit a berry or a drupe. Leaves opposite or whorled, provided with
stipules or connected by transverse lines at the base. Shrubs or trees.
=198. Loganiaceae.=
708. (701.) Stamens 3-12. 709
Stamens numerous. 714
709. Flowers unisexual. Fruit a berry. Trees or shrubs. 710
Flowers hermaphrodite or polygamous. 711
710. Flowers monoecious. Calyx subentire. Corolla of the male flowers
with a long tube, of the female ones with free petals. Staminodes
absent in the female flowers. Ovary sessile. Style short. Stigmas 5.
Leaves lobed. _Cylicomorpha_, =163. Caricaceae=.
Flowers dioecious. Calyx of free sepals. Corolla with a short tube.
Staminodes present in the female flowers. Ovary shortly stalked.
Style long. Stigma 1, lobed. Leaves undivided. _Cercopetalum_, =87.
Capparidaceae=.
711. Styles 5, free. Stamens 10, united at the base. Calyx with
imbricate, corolla with contorted, aestivation. =108. Oxalidaceae.=
Style 1, simple or divided; in the latter case calyx with valvate
aestivation. 712
712. Leaves exstipulate, undivided. =189. Ericaceae.=
Leaves stipulate. Calyx with valvate or closed, corolla with contorted,
aestivation. 713
713. Anthers 1-celled, opening by a single slit, twisted, 5. Leaves
digitate. Trees. _Ceiba_, =143. Bombacaceae=.
Anthers 2-celled, opening by two slits or pores. =144. Sterculiaceae.=
714. (708.) Corolla of numerous divisions. Styles 5. Leaves without
stipules. Herbs. _Orygia_, =72. Aizoaceae=.
Corolla of 5 divisions. 715
715. Corolla with valvate aestivation. Shrubs or trees. =145.
Scytopetalaceae.=
Corolla with imbricate or contorted aestivation. 716
716. Calyx with valvate or closed, corolla with contorted, aestivation.
Leaves stipulate. 717
Calyx with imbricate aestivation. Leaves exstipulate, undivided. Shrubs
or trees. 719
717. Anthers 2-celled. =144. Sterculiaceae.=
Anthers 1-celled. Filaments united. Embryo curved. 718
718. Leaves palmately compound. Trees. =143. Bombacaceae.=
Leaves simple. =142. Malvaceae.=
719. Stamens 15. Style simple, with 5 stigmas. Albumen abundant.
_Ficalhoa_, =189. Ericaceae=.
Stamens more than 15. Albumen scanty or wanting. =148. Theaceae.=
720. (552.) Style 1, or styles 2 or more, united at the base or apex.
721 Styles 2 or more, entirely free. 725
721. Stamens numerous. Filaments united. Anthers 1-celled. Ovaries 5 or
more. Calyx with valvate, corolla with contorted aestivation. Leaves
stipulate. =142. Malvaceae.=
Stamens 2-5. Ovaries 2-5. 722
722. Fertile stamens 2 or 4. Ovaries 4, one-ovuled. Flowers usually
irregular. Leaves usually opposite or whorled. =206. Labiatae.=
Fertile stamens 5. Flowers usually regular. 723
723. Ovaries 4, one-ovuled. Style or style-branches stigmatose at the
apex or between the apical lobes. Disc present. Leaves, at least the
upper ones, alternate. =204. Borraginaceae.=
Ovaries 2, rarely 3 or 5, very rarely 4, but then 2-ovuled. Style or
styles stigmatose beneath the thickened apex. Leaves usually opposite.
724
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