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This genus is accepted, and its native range is Tropics & Subtropics.

[FTEA]

Euphorbiaceae, A. R.-Smith. Flora of Tropical East Africa. 1987

Morphology General Habit
Dioecious or more rarely monoecious shrubs or trees with a stellate or simple indumentum
Morphology Leaves
Leaves alternate, usually petiolate, stipulate, elobate, crenate or serrate, often remotely so, sometimes glandular beneath at the base, sometimes stipellate, palmi- or penninerved
Morphology Reproductive morphology Inflorescences
Inflorescences usually unisexual, terminal, axillary or from the old wood, solitary or fascicled, spicate or paniculate, usually lax-flowered
Morphology Reproductive morphology Flowers
Male flowers small, in bracteate clusters along the simple or branched rhachis Female flowers usually 1 per bract Male flowers: calyx closed in bud, globose, later valvately 2–5 partite; petals and disc 0; stamens usually 8, rarely fewer, filaments free or slightly connate at the base, anthers oblong, dorsifixed, introrse, the thecae parallel or slightly diverging and partially free at the base, longitudinally dehiscent; pistillode 0, or, if present, then columnar, and 2–3-lobed Female flowers: sepals 3–6, usually 4, imbricate; petals and disc 0; ovary (1–)2–3(–4)-locular, with 1 ovule per locule; styles free or slightly connate at the base, usually simple, linear, rarely bifid at the apex
sex Male
Male flowers small, in bracteate clusters along the simple or branched rhachis Male flowers: calyx closed in bud, globose, later valvately 2–5 partite; petals and disc 0; stamens usually 8, rarely fewer, filaments free or slightly connate at the base, anthers oblong, dorsifixed, introrse, the thecae parallel or slightly diverging and partially free at the base, longitudinally dehiscent; pistillode 0, or, if present, then columnar, and 2–3-lobed
sex Female
Female flowers usually 1 per bract Female flowers: sepals 3–6, usually 4, imbricate; petals and disc 0; ovary (1–)2–3(–4)-locular, with 1 ovule per locule; styles free or slightly connate at the base, usually simple, linear, rarely bifid at the apex
Morphology Reproductive morphology Fruits
Fruit 2–3(–4)-lobed or subglobose, smooth or warty, dehiscing septicidally into bivalved cocci leaving a persistent columella; endocarp crustaceous
Morphology Reproductive morphology Seeds
Seeds subglobose, ecarunculate or ± so, testa crustaceous, albumen fleshy; cotyledons broad, flat.

[FZ]

Euphorbiaceae, A. Radcliffe-Smith. Flora Zambesiaca 9:4. 1996

Morphology General Habit
Dioecious or sometimes monoecious trees or shrubs, with a simple indumentum (or stellate, outside Flora Zambesiaca area) .Leaves alternate, petiolate, stipulate, simple, crenate or serrate, sometimes remotely so, sometimes glandular beneath, stipellate or exstipellate, penni- or palminerved.
Morphology Reproductive morphology Inflorescences
Inflorescences usually unisexual, terminal or axillary, solitary or fascicled, spicate or paniculate, usually lax.
Morphology Reproductive morphology Flowers
Female flowers: sepals (3)4(6), imbricate; petals and disk absent; ovary (1)2–3(4)-celled, with 1 ovule per cell; styles free or ± free, usually simple, linear. Male flowers small, in bracteate clusters. Female flowers usually solitary per bract. Male flowers: calyx closed in bud, ± globose, later valvately 2–5-partite; petals and disk absent; stamens 8, rarely fewer, filaments free or ± connate at the base, anthers oblong, dorsifixed, introrse, the thecae ± parallel, longitudinally dehiscent; pistillode columnar, 2–3-lobed, or absent.
Morphology Reproductive morphology Fruits
Fruits 2–4-lobed or subglobose, smooth or warty, septicidally dehiscent into bivalved cocci; endocarp crustaceous.
Morphology Reproductive morphology Seeds
Seeds subglobose, ecarunculate; testa crustaceous; albumen fleshy; cotyledons broad, flat.

Native to:

Andaman Is., Angola, Argentina Northeast, Assam, Bangladesh, Belize, Benin, Bismarck Archipelago, Bolivia, Borneo, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cabinda, Cambodia, Cameroon, Central African Repu, Chad, China South-Central, China Southeast, Christmas I., Colombia, Comoros, Congo, Costa Rica, Cuba, Dominican Republic, East Himalaya, Ecuador, El Salvador, Equatorial Guinea, Ethiopia, French Guiana, Gabon, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Haiti, Honduras, Ivory Coast, Jamaica, Jawa, Kenya, KwaZulu-Natal, Laos, Leeward Is., Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Maluku, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mozambique, Myanmar, Nansei-shoto, Nepal, New Guinea, New South Wales, Nicaragua, Nicobar Is., Nigeria, Northern Provinces, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Queensland, Rwanda, Senegal, Sierra Leone, Sudan, Sulawesi, Sumatera, Suriname, Swaziland, Taiwan, Tanzania, Thailand, Togo, Trinidad-Tobago, Uganda, Venezuela, Vietnam, Windward Is., Zambia, Zaïre, Zimbabwe

Alchornea Sw. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
May 1, 2002 Cheek, M. [9053], Cameroon K000026681
Harley, R.M. [CFCR6501], Brazil K001206376
Hatschbach, G. [58973], Brazil K001206389
Queiroz, L.P. [3241], Brazil K001206384
Queiroz, L.P. [3241], Brazil K001206385
Vicentini, A. [1132], Brazil K001206378
Vicentini, A. [1132], Brazil K001206379
Vicentini, A. [1135], Brazil K001206382
Heringer, E.P. [6874], Brazil K001206380
Rosa, N.A. [3844], Brazil K001206386
Rosa, N.A. [3754], Brazil K001206387
Rosa, N.A. [3601], Brazil K001206388
Silva, M.A. [3062], Brazil K001206381
Cid Ferreira, C.A. [4575], Brazil K001206383
Saavedra, M.M. [421], Brazil K001206377

First published in Prodr. Veg. Ind. Occ.: 98 (1788)

Accepted by

  • van Welzen, P.C. & Bulalacao, L.J. (2007). The genus Alchornea (Euphorbiaceae) in the Malay Archipelago and Thailand Systematic Botany 32: 803-818.
  • De S.Secco, R. (2004). Alchorneae (Euphorbiaceae) (Alchornea, Aparisthmium e Conceveiba) Flora Neotropica, Monograph 93: 1-194.
  • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

Literature

Flora of West Tropical Africa

  • Pax & K. Hoffm. in Engl. Pflanzenr. Euph. 7: 220 (1914).
  • —F.T.A. 6, 1: 914

Flora Zambesiaca

  • Prodr.: 98 (1788).

Flora of Tropical East Africa

  • Pax in E.P. IV. 147(7): 220 (1914)
  • Prain in F.T.A. 6(1): 914 (1912)
  • G.P. 3(1): 314 (1880)
  • Muell. Arg. in DC., Prodr. 15(2): 899 (1866)
  • Prodr.: 98 (1788)

Flora Zambesiaca
Flora Zambesiaca
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Flora of Tropical East Africa
Flora of Tropical East Africa
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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

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