Chaetachme Planch.

First published in Ann. Sci. Nat., Bot., sér. 3, 10: 340 (1848)
This genus is accepted
The native range of this genus is Tropical & S. Africa, Madagascar.

Descriptions

Ulmaceae, R. M. Polhill. Flora of Tropical East Africa. 1966

Morphology General Habit
Trees or shrubs, dioecious or monoecious; branches with axillary spines
Morphology Leaves
Leaf-blades penninerved, minutely punctate on the lower surface, scabrous when mature
Morphology Leaves Stipules
Stipules large, united along one margin, enclosing the terminal bud, caducous
Morphology Reproductive morphology Inflorescences
Cymes congested, axillary, with many ♂ flowers and rarely an odd ♀ flower at the top; ♀ flowers often solitary, in the upper axils if monoecious
Morphology Reproductive morphology Flowers Calyx
Sepals 5, shortly united at the base, with ♂ buds induplicate-valvate and ♀ imbricate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens equal in number to the sepals
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile, 1–locular; styles long, divaricate
Morphology Reproductive morphology Fruits
Fruits thinly fleshy; endocarp bony, very hard.
[FTEA]

Ulmaceae, C. M. Wilmot-Dear. Flora Zambesiaca 9:6. 1991

Morphology General Habit
Trees or shrubs, monoecious or dioecious; branches with axillary spines.
Morphology Leaves
Leaves penninerved, shortly petiolate, apex long-mucronate, base slighty unequal-sided; stipules large, united along one margin, enclosing the terminal bud, caducous.
Morphology Reproductive morphology Inflorescences
Inflorescences cymose, often branched, usually congested, entirely male or with 1(2) females near the base; remaining female flowers solitary and usually in the upper axils.
Morphology Reproductive morphology Flowers Calyx
Sepals 5, shortly basally united, with the male buds induplicate-valvate, and the female buds imbricate.
Morphology Reproductive morphology Flowers
Female flowers without staminodes; male flowers with pistillode, stamens equal in number to sepals.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile, unilocular; styles 2, long, unbranched, divaricate, persistent.
Morphology Reproductive morphology Fruits
Fruits large, endocarp very hard.
Morphology Reproductive morphology Seeds
Embryo curved.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0