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Abutilon sachetianum

Overview

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Vulnerable
Threat status

Description

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Family Malvaceae

Herbs, shrubs , or less often trees ; indumentum usually with peltate scales or stellate hairs . Leaves alternate, stipulate , petiolate ; leaf blade usually palmately veined, entire or various lobed . Flowers solitary, less often in small cymes or clusters , axillary or subterminal , often aggregated into terminal racemes or panicles, usually conspicuous , actinomorphic , usually bisexual (unisexual in Kydia) . Epicalyx often present, forming an involucre around calyx, 3- to many lobed. Sepals 5, valvate , free or connate . Petals 5, free, contorted, or imbricate, basally adnate to base of filament tube . Stamens usually very many, filaments connate into tube; anthers 1-celled. Pollen spiny . Ovary superior, with 2-25 carpels, often separating from one another and from axis; ovules 1 to many per locule; style as many or 2 × as many as pistils, apex branched or capitate. Fruit a loculicidal capsule or a schizocarp, separating into individual mericarps, rarely berrylike when mature (Malvaviscus) ; carpels sometimes with an endoglossum (a crosswise projection from back wall of carpel to make it almost completely septate . Seeds often reniform , glabrous or hairy , sometimes conspicuously so.

About 100 genera and ca. 1000 species: tropical and temperate regions of N and S Hemisphere; 19 genera (four introduced ) and 81 species (24 endemic, 16 introduced) in China.

Molecular studies have shown that the members of the Bombacaceae, Malvaceae, Sterculiaceae, and Tiliaceae form a very well-defined monophyletic group that is divided into ten also rather well-defined clades, only two of which correspond to the traditional families Bombacaceae and Malvaceae. Some of the remaining groups are included entirely within either of the remaining families but others cut across the traditional divide between the Sterculiaceae and Tiliaceae. A majority of authors , most notably Bayer and Kubitzki (Fam. Gen. Vasc. Pl. 5: 225-311. 2003), has favored including everything within a greatly enlarged Malvaceae, and treating the individual clades as subfamilies. The alternative view is that the individual clades should be treated as a series of ten families: Bombacaceae (Bombacoideae), Brownlowiaceae (Brownlowioideae), Byttneriaceae (Byttnerioideae), Durionaceae (Durionoideae), Helicteraceae (Helicteroideae), Malvaceae (Malvoideae), Pentapetaceae (Dombeyoideae), Sparrmanniaceae (Grewioideae), Sterculiaceae (Sterculioideae), and Tiliaceae (Tilioideae) (Cheek in Heywood et al. , Fl. Pl. Fam. World. 201-202. 2007) . For the present treatment, we prefer to retain the familiar, traditional four families, so as to maintain continuity with the treatments in FRPS, and to await a consensus on the two alternative strategies for dealing with the very widely accepted clades.

The traditional Malvaceae coincides exactly with one of the major clades. The only possible problem is the relationship with the Bombacaceae, which also has primarily 1-loculed anthers, and some authorities have suggested that the Bombacaceae should be included within the Malvaceae.

Members of the Malvaceae are important as fiber crops (particularly cotton, Gossypium) . Young leaves of many species can be used as vegetables, and species of Abelmoschus and Hibiscus are grown as minor food crops. Many species have attractive flowers and an ever-increasing selection is grown as ornamentals . Several have been cultivated for a very long time, particularly species of Hibiscus, and some of these are not known in the wild.[1]

Genus Abutilon

Herbs, subshrubs , shrubs , or small trees . Stipules usually caducous ; leaf blade usually entire (lobed in A. pictum), palmately veined, base cordate, margin crenate or serrate. Flowers axillary or subterminal , solitary, paired or in small cymes, often aggregated into terminal panicles. Epicalyx absent. Calyx campanulate , lobes 5. Corolla mostly yellow or orange (red in A. roseum), often with dark center, campanulate to wheel-shaped, rarely ± tubular (A. pictum) ; petals 5, basally connate and adnate to filament tube . Anthers many, clustered at filament tube apex. Ovary (5-) 7-20-loculed; ovules 2-9 per carpel; style branches as many as carpels. Fruit a schizocarp, often blackish when mature , subglobose to hemispherical; mericarps (5-) 7-20, eventually dehiscent , apex rounded or acute, sometimes 2-awned, pericarp leathery. Seeds reniform , glabrous or slightly pubescent .

About 200 species: mostly in tropics and subtropics; nine species (three endemic, one introduced ) in China.

Several species have become widespread tropical weeds . One species, Abutilon pictum, is widely grown as an ornamental .[2]

Taxonomy

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Notes

Publishing author : Fosberg Publication : in Smithsonian Contrib. Bot., 47: 7 (1981) 1981

Similar Species

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Members of the genus Abutilon

ZipcodeZoo has pages for 692 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

A. - · A. abutiloides (American Indian-Mallow) · A. abutilon · A. acerifolium · A. affine · A. agnesae · A. albescens · A. albidum · A. album · A. alii · A. 'Alpha Glory' · A. ambiguum · A. americanum · A. 'Amiti' · A. amoenum · A. amplexifolium · A. amplissimum · A. amplum · A. 'Amsterdam' · A. anderssonianum · A. andrewsianum · A. andrieuxii · A. anglosomaliae · A. angulatum · A. angulatum var. macrophyllum · A. anodoides · A. 'Apollo' (Chinese Bell Flower) · A. appendiculatum · A. 'Apricot' (Flowering Maple) · A. 'Apricot Belle' · A. 'Apricot Glow' · A. arborescens · A. arboreum · A. arenarium · A. arequipense · A. aristulosum · A. arnottianum · A. 'Ashford Red' (Flowering Maple) · A. asiaticum (Asian Indian Mallow) · A. asiaticum var. albescens · A. asiaticum var. australiense · A. asiaticum var. subasperum · A. asiaticum var. supraviride · A. asperifolium · A. atropurpureum · A. attenuatum · A. aurantiacum · A. aureum · A. auritum (Asian Indian Mallow) · A. australe · A. australe var. malvifolium · A. austroafricanum · A. avicennae · A. avicennae var. chinense · A. 'Baby Orange' (Flowering Maple) · A. badium · A. bakeranum · A. bakeri · A. bakerianum · A. balansae · A. 'Ballerina' · A. barrancae · A. 'Bartley Schwartz' (Chinese Bell Flower) · A. bastardioides · A. bathiei · A. bedfordianum · A. bedfordianum discolor · A. bedfordianum subsp. concolor · A. bedfordianum subsp. discolor · A. behrianum · A. 'Bella Coral' (Flowering Maple) · A. 'Bella Pink' (Flowering Maple) · A. 'Bella Salmon Shades' · A. 'Bella Select Mix' (Flowering Maple) · A. Bella Series · A. 'Bella Vanilla' (Flowering Maple) · A. benadirense · A. 'Benary's Giant' · A. benedictum · A. benense · A. berlandieri (Berlandier's Indian Mallow) · A. 'Bessie Schulson' · A. betschuanicum · A. bicolor · A. bidentatum · A. bidentatum var. forrestii · A. blandum · A. blepharocarpum · A. 'Bloomsbury Can-can' · A. 'Bloomsbury Rose' · A. 'Boule de Neige' · A. bracteosum · A. braunii · A. brenesii · A. bridgesii · A. buchii · A. burandtii · A. bussei · A. cabrae · A. caldemni

More Info

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Further Reading

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  • Feng Kuo-mei. 1984. Malvaceae. In: Feng Kuo-mei, ed., Fl. Reipubl. Popularis Sin. 49(2): 1-102.
  • Feng Kuo-mei. 1984. Malvaceae. In: Feng Kuo-mei, ed., Fl. Reipubl. Popularis Sin. 49(2): 1-102.

    • Notes

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    Contributors

    Identifiers

    Footnotes

    1. Ya Tang, Michael G. Gilbert & Laurence J. Dorr "Malvaceae". in Flora of China Vol. 12 Page 240, 264,299, 302. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
    2. "Abutilon". in Flora of China Vol. 12 Page 265, 275. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
    Last Revised: 2009-07-27