Hura L.

First published in Sp. Pl.: 1008 (1753)
This genus is accepted
The native range of this genus is Mexico to Tropical America.

Descriptions

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

Morphology General Habit
Large monoecious trees with a simple (localized) indumentum
Morphology Leaves
Leaves alternate, long-petiolate, stipulate, simple, entire, subentire or denticulate, penninerved, with a pair of glands at the apex of the petiole
Morphology Reproductive morphology Inflorescences
Inflorescences subterminal or pseudaxillary, solitary, bisexual, the ♂ portion spicate, strobiliform at first, pedunculate, with a large solitary, stoutly pedicellate ♀ flower at the base; ♂ bracts 1-flowered, closed at first and pustuliform, later becoming ruptured as the flowers develop
sex Male
Male flowers subsessile; calyx open in bud, cupuliform, truncate, denticulate; petals 0; disc 0; stamens 8–many, filaments continuous with the produced connectives and connate into a stout clavate truncated column; anthers in 2 or more whorls around the upper part of the column, discrete, extrorse, thecae parallel, longitudinally dehiscent; pistillode 0
Morphology Reproductive morphology Flowers
Female flower: calyx cupular, truncate, entire, coriaceous, only loosely enveloping the ovary; petals 0; disc 0; ovary 5–20-locular, with 1 ovule per locule; styles 5–20, connate into a tall fleshy column, the arms free at the apex, radiately divergent, undivided Male flowers subsessile; calyx open in bud, cupuliform, truncate, denticulate; petals 0; disc 0; stamens 8–many, filaments continuous with the produced connectives and connate into a stout clavate truncated column; anthers in 2 or more whorls around the upper part of the column, discrete, extrorse, thecae parallel, longitudinally dehiscent; pistillode 0
sex Female
Female flower: calyx cupular, truncate, entire, coriaceous, only loosely enveloping the ovary; petals 0; disc 0; ovary 5–20-locular, with 1 ovule per locule; styles 5–20, connate into a tall fleshy column, the arms free at the apex, radiately divergent, undivided
Morphology Reproductive morphology Fruits
Fruit large, 5–20-lobed, explosively dehiscing into 5–20 bivalved segmentiform cocci; exocarp fibrous; endocarp thick, ligneous; columella persistent
Morphology Reproductive morphology Seeds
Seeds laterally strongly compressed, ecarunculate; testa crustaceous, smooth; albumen fleshy; cotyledons suborbicular, flat.
[FTEA]

Sources

  • Flora of Tropical East Africa

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