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Pyrenacantha Wight

Genus

Angiosperms > Icacinales > Icacinaceae

Characteristics

Lianas woody, without tendrils and latex. Leaves alternate, petiolate, scabrid or sparsely hairy, entire or serrate. Plants dioecious. Flowers small, apetalous. Staminate flowers in slender spikes, with bractlets; calyx 4-cleft, rarely 3-or 5-cleft; lobes valvate; stamens 4, alternate with calyx lobes; anthers introrse; gynoecium reduced. Pistillate flowers in dense spikes, without bractlets; calyx as in male flowers, persistent, recurved; rudimentary stamens very short; ovary with stigma capitate, sessile. Drupe slightly compressed; endocarp thin, fragile crustaceous, outside wrinkled, inside with warty or spinose protuberances penetrating endosperm. Seeds with fleshy endosperm; cotyledons large, leaflike.
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Dioecious scandent shrubs or lianas. Leaves spirally arranged, glandular-repand-dentate and penninerved. Flowers small, sessile, bracteate, in lax supra-axillary spikes. Sepals or calyx 0. Petals connate at base, valvate in bud, persistent in ♀ flowers. ♂ Flowers: Stamens (3-)4(-5); filaments very short; anthers minute. Rudiment of ovary present. ♀ Flowers: Staminodes very short or absent. Ovary sessile; stigma sessile, thick, truncate. Drupe laterally compressed; exocarp fleshy; endocarp crustaceous, punctate outside, verrucose-papillose inside, the papillae projecting into the interstices of the deeply ruminate and pitted albumen. Seed 1.
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Hardiness (USDA) 8-12

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Cultivation

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Images

Pyrenacantha unspecified picture

Distribution

Pyrenacantha world distribution map, present in China, India, Madagascar, and Philippines

Identifiers

LSID urn:lsid:ipni.org:names:331892-2
WFO ID wfo-4000032289
COL ID -
BDTFX ID -
INPN ID 806954
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Adelanthus Sadrum Moldenhauera Cavanilla Chlamydocarya Monocephalium Polycephalium Trematosperma Pyrenacantha

Lower taxons

Pyrenacantha ambrensis Pyrenacantha capitata Pyrenacantha glabrescens Pyrenacantha gabonica Pyrenacantha sylvestris Pyrenacantha staudtii Pyrenacantha repanda Pyrenacantha puberula Pyrenacantha grandiflora Pyrenacantha kirkii Pyrenacantha vogeliana Pyrenacantha andapensis Pyrenacantha chlorantha Pyrenacantha humblotii Pyrenacantha laetevirens Pyrenacantha kaurabassana Pyrenacantha scandens Pyrenacantha volubilis Pyrenacantha malvifolia Pyrenacantha undulata Pyrenacantha perrieri Pyrenacantha tropophila Pyrenacantha anhydathoda Pyrenacantha gossweileri Pyrenacantha macrocarpa Pyrenacantha rostrata Pyrenacantha soyauxii Pyrenacantha thomsoniana Pyrenacantha manchesteriana Pyrenacantha rakotozafyi Pyrenacantha acuminata Pyrenacantha longirostrata Pyrenacantha lebrunii Pyrenacantha grandifolia Pyrenacantha cordicula Pyrenacantha klaineana
WorldFloraDB 2024