Botanical Survey of India | Flora of India

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Shrubs, lianas or sometimes stragglers with flexuous branches. Leaves simple, often scabrid; petiole short, furrowed. Inflorescence few- to many-flowered panicles, terminal or axillary. Flowers fragrant, actinomorphic, bisexual, often with bracts. Sepals 4 - 5, rarely up to 15, imbricate, persistent, often reflexed in fruit. Petals 3 - 5, white or reddish white, emarginate at apex, caducous. Stamens numerous, subequal; filaments free, broadened at apex with broad connectives; anther-thecae downwardly divergent. Carpels 2 - 4 or solitary, free, each with a short straight style and 4 - 10 ovules in a single row. Fruiting carpels follicular, 1 - 4, ovoid to globose, each with a short beak, 1 - 2-seeded, coriaceous, dehiscing by longitudinal slits into 2 halves. Seeds glossy, dark brown or blackish, fleshy, fimbriate or laciniate.

China, S. & S.E. Asia to Australia, Africa and America; ca 40 species, 4 in India.

Literature. HOOGLAND, R. D. (1953) The genus Tetracera (Dilleniaceae) in the eastern old World. Reinwardtia 2: 185 - 224, ff. 1 - 10.



KEY TO THE SPECIES


1a. Inflorescence up to 12-flowered, without leaves at base; carpels 2 - 4 2
b. Inflorescence 30 or more flowered, with 1 - 5 small leaves at base; carpel 1, rarely 2 3
2a. Sepals glabrous outside, sericeous inside, except the margins 1. Tetracera akara
b. Sepals glabrous 2. Tetracera indica
3a. Follicles glabrous 3. Tetracera sarmentosa
b. Follicles hirsute 4. Tetracera scandens


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