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This genus is accepted, and its native range is Mexico to Central America, Tropical Africa to S. Pacific.
Alstonia scholaris (Apocynaceae)

[FTEA]

Apocynaceae, E.A. Omino. Flora of Tropical East Africa. 2002

Morphology General Habit
Trees or shrubs; branches verticillate, in whorls of 4–5
Morphology Leaves
Leaves verticillate or opposite (not in our area), petiolate, with or without intrapetiolar stipules which are often adnate to the petiole; colleters present in leaf axils
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, thyrsoid or compound, subumbellate, in whorls of 1–5
Morphology Reproductive morphology Flowers
Flowers 5-merous, actinomorphic
Morphology Reproductive morphology Flowers Corolla
Corolla white, yellow or red; tube cylindrical, widened around anthers, thickened at the throat; lobes spreading, overlapping to the left
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens included; anthers basifixed, introrse
Morphology Reproductive morphology Flowers Disc
Disk present, free or adnate to the ovary, often indistinct. Ovary 2-celled, apocarpous or syncarpous, ovules numerous, style terete, stigma bifid, subtended by a cylindrical or slightly conical clavuncula
Morphology Reproductive morphology Fruits
Fruit of two follicles, free or connate at the base
Morphology Reproductive morphology Seeds
Seeds numerous, pubescent, ciliate, sometimes winged.

Native to:

Andaman Is., Assam, Bangladesh, Benin, Bismarck Archipelago, Borneo, Burkina, Cabinda, Cambodia, Cameroon, Central African Repu, China South-Central, China Southeast, Congo, Cook Is., Costa Rica, East Himalaya, El Salvador, Equatorial Guinea, Ethiopia, Fiji, Gabon, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Hainan, Honduras, India, Ivory Coast, Jawa, Laccadive Is., Laos, Lesser Sunda Is., Liberia, Malaya, Maluku, Marquesas, Mexico Central, Mexico Gulf, Mexico Southeast, Mexico Southwest, Myanmar, Nepal, New Caledonia, New Guinea, New South Wales, Nicaragua, Nicobar Is., Nigeria, Northern Territory, Pakistan, Panamá, Philippines, Queensland, Samoa, Santa Cruz Is., Senegal, Sierra Leone, Society Is., Solomon Is., Sri Lanka, Sudan, Sulawesi, Sumatera, Tanzania, Thailand, Togo, Tonga, Uganda, Vanuatu, Vietnam, West Himalaya, Western Australia, Zaïre

Introduced into:

Trinidad-Tobago

Alstonia R.Br. appears in other Kew resources:

First published in Asclepiadeae: 64 (1810)

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

  • Monachino in Pacif. Sci. 3, 2: 139 (1949). Nom. cons.
  • —F.T.A. 4, 1: 120

Flora of Tropical East Africa

  • K. Schum. in E. & P. Pf. 4 (2): 138 (1895)
  • de Jong in Meded. Landbouwhogeschool 79 (13): 2–16 (1979)
  • in Mem. Wern. Soc. 1: 75 (1811), nom. conserv.

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Interactive Key to Seed Plants of Malesia and Indo-China
The Malesian Key Group (2010) Interactive Key to Seed Plants of Malesia and Indo-China (Version 2.0, 28 Jul 2010) The Nationaal Herbarium Nederland Leiden and The Royal Botanic Gardens Kew

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