- Family: Apocynaceae Juss.
Adenium Roem. & Schult.
[FTEA]
Apocynaceae, E.A. Omino. Flora of Tropical East Africa. 2002
- Morphology General Habit
- Succulent shrubs or trees 0.2–6 m tall with clear or white latex; lower trunk sometimes up to 1 m in diameter; bark pale grey or brown, smooth; branchlets pubescent at the apex, glabrescent
- Morphology Leaves
- Leaves alternate, (sub–)sessile, confined to apices of branchlets, with colleters in the axils; stipules minute or absent; blade entire
- Morphology Reproductive morphology Inflorescences
- Inflorescence thyrsoid, lax; peduncle very short or absent
- Morphology Reproductive morphology Flowers
- Flowers slightly zygomorphic
- Morphology Reproductive morphology Flowers Corolla
- Corolla tube infundibuliform to salver-shaped, widened at the throat; lobes obovate, overlapping to the right in bud, with an obcordate corona at the base of and in between the lobes
- Morphology Reproductive morphology Flowers Androecium Stamens
- Stamens included to exserted; anthers with long, filiform, usually coherent and twisted appendages at the apex
- Morphology Reproductive morphology Flowers Gynoecium Pistil
- Ovary of two globose carpels, coherent at the base; style cylindrical, split at the base; pistil head subcylindrical; stigmoid apex short, bifid
- Morphology Reproductive morphology Fruits
- Fruit of two oblong woody pubescent follicles, coherent at the base, tapering at both ends
- Morphology Reproductive morphology Seeds
- Seeds many, with tufts of dirty white to light brown hairs at both ends.
[FSOM]
M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS
- Morphology General Habit
- Succulent shrubs or trees; latex clear or cloudy
- Morphology Leaves
- Leaves alternate, at tips of branchlets
- Morphology Reproductive morphology Flowers
- Flowers slightly zygomorphic, on pubescent pedicels
- Morphology Reproductive morphology Flowers Corolla
- Corolla-tube much widened and with corona appendages at the throat; lobes overlapping to the right in bud
- Morphology Reproductive morphology Flowers Androecium Stamens
- Stamens included to exserted; anthers with long thread-like appendage at the apex
- Morphology Reproductive morphology Flowers Gynoecium Ovary
- Ovary of 2 carpels united at the base; stigmatic head subcylindrical
- Morphology Reproductive morphology Fruits
- Fruit of 2 spreading or reflexed follicles united at the very base, pubescent, many-seeded
- Morphology Reproductive morphology Seeds
- Seeds oblong, with tufts of hairs at both ends.
- Distribution
- Genus of about six species in Africa and southern Arabia.
[FZ]
Apocynaceae, A. J. M. Leeuwenberg & F. K. Kupicha et al. Flora Zambesiaca 7:2. 1985
- Morphology General Habit
- Succulent shrubs or trees with rhizomatous or carrot-like tubers; with clear or white latex.
- Morphology Leaves
- Leaves alternate, confined to the apices of the branchlets, with colleters in the axils; stipules minute or absent.
- Morphology Reproductive morphology Inflorescences
- Inflorescence thyrsoid, lax; bracts narrowly obovate to linear, acuminate, entire, pubescent; peduncle very short or absent; pedicels pubescent.
- Morphology Reproductive morphology Flowers
- Flowers slightly zygomorphic.
- Morphology Reproductive morphology Flowers Calyx
- Sepals connate at the base, subequal, narrowly oblong to narrowly obovate, entire, acuminate.
- Morphology Reproductive morphology Flowers Corolla
- Corolla tube infundibuliform to hypocrateriform, much widened at the throat, more or less pubescent outside, glabrous or pubescent to strigose inside; lobes obovate or narrowly obovate, acuminate, entire, undulate or crispate, spreading, overlapping to the right in bud; between all the lobes an obcordate, glabrous or pubescent to velutinous scale at the base, which is united by its edges with the lobes.
- Morphology Reproductive morphology Flowers Androecium Stamens
- Stamens included to exserted, inserted at the apex of the narrow basal portion of the corolla-tube; anthers narrowly triangular, sagittate at the base, and with a long apical appendage, appendages filiform, usually coherent and twisted at the apex.
- Morphology Reproductive morphology Flowers Gynoecium Carpels
- Carpels two, globose, connate at the base; style split only at the base, cylindrical; clavuncula subcylindrical, more or less coherent with the apices of the filaments; stigma bifid, c. 0·5 mm. long.
- Morphology Reproductive morphology Fruits
- Fruit consisting of two spreading or recurved follicles; follicles connate at the very base, oblong and tapering towards each end, pubescent outside, glabrous inside, many-seeded.
- Morphology Reproductive morphology Seeds
- Seeds oblong, truncate, with tufts of dirty white to light brown hairs at both ends.
Native to:
Angola, Benin, Botswana, Burundi, Cameroon, Cape Provinces, Chad, Ethiopia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Oman, Saudi Arabia, Senegal, Socotra, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Yemen, Zambia, Zimbabwe
Introduced into:
Society Is.
Adenium Roem. & Schult. appears in other Kew resources:
First published in Syst. Veg., ed. 15 bis 4: 35, 411 (1819)
Accepted by
- Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
- Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Literature
Flora of West Tropical Africa
- —F.T.A. 4, 1: 226.
Flora Zambesiaca
- Plaizier in Meded. Landb. Wag. 80–12: 3 (1980).
- Syst. Veg. 4: 35 (1819).
Flora of Somalia
- Flora Somalia, Vol 3, (2006) Author: by M. Thulin [updated by M. Thulin 2008]
- Plaizier in Meded. Landbouwhogeschool Wageningen 80-12: 2–26 (1980).
Flora of Tropical East Africa
- Plaizier in Meded. Landbouwhogeschool 80 (12): 2–26 (1980)
- in Syst. Veg. 4: 35 (1819), as Adenum
Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0
Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0
Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0
Herbarium Catalogue Specimens
Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0