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Eugenia floccosa

Overview

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Endangered
Threat status

Description

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Family Myrtaceae

Trees or shrubs , evergreen , usually with essential oils-containing cavities in foliage , branchlets , and flowers. Stipules absent or small and caducous . Leaves opposite, occasionally alternate, occasionally ternate or pseudo-whorled; leaf blade with secondary veins pinnate or basal, often with intramarginal veins near margin , margin usually entire. Inflorescences axillary or terminal , cymose but variously arranged, 1- to many-flowered. Flowers bisexual , sometimes polygamous, actinomorphic . Hypanthium usually adnate to ovary and prolonged above it. Calyx lobes (3 or) 4 or 5 or more, distinct or connate into a calyptra. Petals 4 or 5, sometimes absent, distinct or connate into a calyptra, sometimes coherent and pseudocalyptrate. Stamens usually numerous , in 1 to several whorls; filaments distinct or connate into 5 bundles opposite petals; anthers 2-celled, dorsifixed or basifixed , dehiscing longitudinally or rarely terminally; connectives usually terminating in 1 or more apical glands . Ovary inferior, semi-inferior, or very rarely superior, carpels 2 to more, locules 1 to many, pseudoseptum sometimes present, placentation usually axile but occasionally parietal ; ovules 1 to several per locule. Style single; stigma single. Fruit a capsule, berry, drupaceous berry, or drupe, 1- to many-seeded. Seeds without endosperm or endosperm sparse and thin; testa cartilaginous or thinly membranous, sometimes absent; embryo straight or curved .

About 130 genera and 4500-5000 species: Mediterranean region, sub-Saharan Africa, Madagascar, tropical and temperate Asia, Australia, Pacific islands, tropical and South America; 10 genera (five introduced ) and 121 species (50 endemic, 32 introduced treated here) in China.

Many Myrtaceae are cultivated garden ornamentals , street trees, or plantation trees. Some members of tribe Syzygieae are grown as fruit crops. In addition to the cultivated members of the family treated here, some others grown in China include Acca sellowiana (O. Berg ) Burrett (Feijoa sellowiana (O. Berg) O. Berg), Myrtus communis Linnaeus, and Syncarpia glomulifera (Smith) Niedenzu.[1]

Genus Eugenia

Trees or shrubs . Leaves opposite, petiolate ; leaf blade pinnately veined. Inflorescences axillary or often lateral below leaves. Flowers bisexual , solitary or clustered. Hypanthium short. Calyx lobes 4. Petals 4. Stamens numerous ; anthers parallel, longitudinally dehiscent . Ovary 2- or 3-loculed; ovules many per locule, amphitropous . Fruit a berry, with persistent sepals at apex. Seed usually 1, embryo straight, with 2 fully or partly fused massive cotyledons.

About 1000 species: mostly in tropical America but also in Africa, S and SE Asia, Australia, Madagascar, Mascarenes, New Caledonia, and the Pacific islands; one species commonly cultivated in S China.[2]

Taxonomy

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Similar Species

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Members of the genus Eugenia

ZipcodeZoo has pages for 1996 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

E. abbottiana · E. abbreviata · E. abeggii · E. abortiva · E. aboukirensis · E. acapulcensis · E. acca · E. aceitillo · E. acetosans · E. acka · E. acrantha · E. acrensis · E. acris · E. acrophila · E. acrophylla · E. acuminata · E. acuminatissima · E. acuminatissima parva · E. acunai · E. acutangula · E. acutata · E. acutiflora · E. acutifolia · E. acutisepala · E. acutissima · E. adamantium · E. adenantha · E. adenocalyx · E. adenocarpa · E. adenoclada · E. adenodes · E. aegiceroides · E. aemilii · E. aemula · E. aerosa · E. aerugenia · E. aeruginea · E. affinis · E. afzelii · E. agathopoda · E. agensis · E. aggregata (Cherry of the Rio Grande) · E. agrostophylla · E. agusanensis · E. aherniana · E. alagoensis · E. alaotrensis · E. alaternifolia · E. alba · E. albanensis · E. albicans · E. albida · E. albidiramea · E. albiflora · E. albimarginata · E. albo-tomentosa · E. alcinae · E. alegrensis · E. alexandri · E. alfaroana · E. alnifolia · E. alpigena · E. alpina · E. alternifolia · E. altipeta · E. alvarezii · E. alyxifolia · E. amatenangensis · E. amazonica · E. ambigua · E. amblyophylla · E. amblyosepala · E. amboinensis · E. americana · E. amicorum · E. ammophylla · E. amoena · E. amplectens · E. amplexicaulis · E. amplexicaulis var. japonicae · E. ampliflora · E. amplifolia · E. ampullaria · E. amshoffae · E. anafensis · E. analamerensis · E. anastomosans · E. anceps · E. ancorifera · E. andamanica · E. andersonii · E. andina · E. androsiana · E. angelyana · E. angkae · E. anglohondurensis · E. angolensis · E. angophoroides · E. angularis · E. angulata

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Jie Chen & Lyn A. Craven "Myrtaceae". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Jie Chen & Lyn A. Craven "Eugenia". in Flora of China Vol. 13 Page 321, 331. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2009-07-03