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Sterculiaceae (Candolle) Bartling

梧桐科

Description from Flora of China

Trees or shrubs, rarely herbs or liana; young growth usually stellately hairy; bark mucilaginous and rich in fibers. Leaves alternate; stipules usually present caducous; leaf blade simple, rarely palmately compound, entire, serrate, or parted. Inflorescence axillary or rarely terminal, paniculate, corymbose, racemose, or cymose, rarely solitary. Flowers unisexual, bisexual or polygamous. Sepals (3-)5, ± connate, rarely free, valvate. Petals 5 or lacking, free or adnate to base of androecium, convolutely imbricate. Androgynophore usually present; filaments usually connate into a single tube; staminodes 5, tonguelike or filiform, opposite to sepals, sometimes lacking; anthers 2-celled, longitudinally dehiscent. Pistil consisting of 2-5(or 10-12) ± connate carpels, or a single carpel; ovary superior, 2-5(or 10-12)-loculed; ovules 2 or more per locule; style 1 or as many as carpels. Fruit usually a capsule or follicle, dehiscent or indehiscent, very rarely a berry or nut. Seeds with abundant endosperm or endosperm lacking; embryo straight or curved.

The Chinese genera fit into four distinct clades which can be treated as subfamilies of an enlarged Malvaceae or as distinct families. These are Sterculioideae/Sterculiaceae s.s. (genera 1-4), Helicteroideae/Helicteraceae (genera 5 and 6), Byttnerioideae/Byttneriaceae (genera 7-13), and Dombeyoideae/Pentapetaceae (genera 14-19).

The record of Hildegardia Schott & Endlicher in China (Bayer & Kubitzki, Fam. Gen. Vasc. Pl. 5: 265. 2003) was based on H. major (W. W. Smith) Kostermans, which is here included within Firmiana.

Hsue Hsiang-hao. 1984. Sterculiaceae. In: Feng Kuo-mei, ed., Fl. Reipubl. Popularis Sin. 49(2): 112-189.

About 68 genera and ca. 1100 species: tropics and subtropics of both hemispheres, a few in temperate regions; 19 genera (two introduced) and 90 species (39 endemic, three introduced) in China.

(Authors: Tang Ya (唐亚); Michael G. Gilbert, Laurence J. Dorr)

中心区 Central Area, 分类区 Classified Area, 药用植物园 Medicinal Plants Area, 荫生植物区 Shady Plants Area, 木本花卉区 Woody Accrescent Area, 濒危园 Endangered Plants Garden, 标本园 Specimens Garden, 引种苗圃 Introducing Plants Nursery, 蒲岗保护区 Pu Gang Reserve

  • List of lower taxa


     

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