Malvaceae

Ayenia L.

First published in Kongl. Svenska Vetensk. Acad. Handl. 17: 24 (1756)
This genus is accepted
The native range of this genus is Tropics & Subtropics.

Descriptions

Sterculiaceae, Martin Cheek & Laurence Dorr; Nesogordonia, Laurence Dorr, Lisa Barnett. Flora of Tropical East Africa. 2007

Morphology General Habit
Lianas, shrubs, or small trees; stems unarmed (FTEA) or armed with prickles or spines; pubescent with stellate or simple hairs, or both intermixed, sometimes also with minute glandular hairs
Morphology Leaves
Leaves simple (FTEA) or lobed, palmately nerved from the base, pinnately nerved above, foliar nectary normally one per leaf on the midvein below and near the base of the blade (FTEA), or 3–5 on one each of the basal nerves, uni- or multi-aperturate (FTEA); stipulate, the stipules generally fugaceous. Inflorescences axillary, 3–many-flowered cymes; erect or pendulous
Morphology Reproductive morphology Flowers
Flowers bisexual
Morphology Reproductive morphology Flowers Calyx
Calyx 5-parted, sepals almost free
Morphology Reproductive morphology Flowers Corolla
Petals 5, free, unguiculate, cucullate, often with conspicuous lateral wings, and a distal appendage (lamina), appendage generally fleshy, simple; staminal tube campanulate or urceolate, stamens 5, antipetalous, alternating with 5 staminodes, anthers di-thecal, sessile, subsessile, or with noticeable filaments, longitudinally dehiscent, staminodes fleshy, sessile or not
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary syncarpous, sessile or subsessile, 5-locular, covered with incipient spines; 2 ovules per locule, ovules anatropous, superposed, the lower one aborting; style ± united to apex; stigmas apical, inconspicuous, 5-fid or subentire
Morphology Reproductive morphology Fruits
Capsules ± globose, echinate, dehiscing septicidally and loculicidally, or only septicidally, into 5, singleseeded mericarps
Morphology Reproductive morphology Seeds
Seed ovoid or elongate, testa smooth or tuberculate, sometimes strophiolate, exalbuminous; cotyledons foliaceous, bilobed, wrapped around the radicle; germination epigeal.
Note
The name of the genus has often been misspelled, e.g. as ‘ Buettneria’ or ‘ Buettnera’
[FTEA]

Sources

  • Flora of Tropical East Africa

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

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. 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 2023. 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

  • Neotropikey

    • Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    • http://creativecommons.org/licenses/by/3.0