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
12. Carpels numerous. Ovules pendulous. Stamens numerous. Petals 4-6,
large, red, white or yellow, imbricate in bud. Sepals imbricate.
Flowers hermaphrodite. Receptacle becoming succulent in fruit.
Shrubs. Leaves pinnate.--Species 10. North Africa and Abyssinia; also
naturalized in several tropical islands. Used as ornamental plants,
and in the preparation of perfumes and medicaments; some have edible
fruits. [Tribe ROSEAE.] =Rosa= Tourn.
Carpels 1-4. Petals small, yellow or white, or wanting. [Tribe
SANGUISORBEAE.] 13
13. Perianth consisting of an epicalyx, a calyx, and a corolla. Carpels
2-4. 14
Perianth consisting of calyx and corolla, or of epicalyx and calyx, or
of the calyx only. 15
14. Flowers hermaphrodite. Epicalyx of 5-6 small segments. Petals
broad. Stamens 10-12. Shrubs. Leaves pinnatipartite. Flowers in
racemes.--Species 1. South Africa. =Leucosidea= Eckl. & Zeyh.
Flowers polygamous-dioecious. Epicalyx of 4-5 large segments.
Petals narrow. Stamens 20. Trees. Leaves pinnate. Flowers in
panicles.--Species 1. East Africa. Used medicinally. (_Brayera_ Kunth)
=Hagenia= Gmel.
15. Perianth consisting of a corolla and a calyx surrounded by several
rows of hooked bristles. Stamens 10 or more. Styles 2, subterminal.
Herbs. Leaves pinnate. Flowers in spikes.--Species 1. North and South
Africa. Yields tanning and dyeing materials, and is also used in
medicine. =Agrimonia= L.
Perianth consisting of a calyx with an epicalyx, or only of a calyx. 16
16. Epicalyx of 4-5 segments alternating with the sepals. Stamens 1-5.
Ovules ascending. Styles basal. Stigmas capitate. Leaves lobed or
digitate.--Species 25. Some of them yield tanning and dyeing materials
and medicaments. “Lady’s mantle.” (Including _Aphanes_ L.) =Alchimilla=
L.
Epicalyx none. Stigmas more or less penicillate. 17
17. Flowers hermaphrodite or monoecious; in the latter case receptacle
of the male flowers resembling that of the female. Leaves pinnate.
Flowers in spikes or heads. 18
Flower dioecious. Stamens numerous. Receptacle of the male flowers very
small. Shrubs or trees. 20
18. Receptacle armed with hooked bristles, at least in fruit. Flowers
hermaphrodite. Stamens 2-5. Herbs or undershrubs.--Species 3. South
Africa. Used medicinally. =Acaena= Vahl
Receptacle without bristles. 19
19. Flowers hermaphrodite or polygamous. Fruiting receptacle dry, not
coloured, wrinkled and pitted or winged. Herbs.--Species 10. North
Africa, one species also introduced in South Africa. Some species yield
tans, dyes, and medicaments, or are used as potherbs. (Under _Poterium_
L.) =Sanguisorba= L.
Flowers monoecious. Fruiting receptacle somewhat fleshy, coloured,
smooth. Stamens numerous. Spinous shrubs.--Species 1. North Africa.
Used medicinally. (_Sarcopoterium_ Spach). =Poterium= L.
20. Leaves pinnate, with several pairs of leaflets. Flowers in spikes.
Fruiting receptacle somewhat fleshy.--Species 2. Canary Islands and
Madeira. =Bencomia= Webb
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account