Botanical Survey of India | Flora of India

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Rinorea Aublet


Shrubs or small trees. Leaves alternate or rarely opposite or spiral, distichous, entire or serrate; secondary nerves numerous and parallel; petiole short or absent; stipules caducous to persistent, often longitudinally striate. Flowers bisexual or rarely unisexual, sometimes plants dioecious, regular, solitary or usually racemose, cymose or paniculate, rarely in axillary or terminal cymes; peduncles articulate. Sepals almost equal, rigid, ciliate. Petals isomorphic or subequal, free, sessile. Stamens inserted on margin of an annular disc; connective produced into a long or short, often broad membranous appendage. Ovary tricarpellary, unilocular with 3 parietal placentae; ovules 1 - 3 on each placenta, rarely numerous; style straight, with a terminal more or less distinctly 3-lobed stigma. Fruits capsular, 3-valved, globose, subtended by floral parts. Seeds 3 - 6, ellipsoid, glabrous, rarely woolly with leathery testa.

America, Africa, Bangladesh, Myanmar, Sri Lanka, Malaysia, Indonesia to N. Australia, Malagasy, in tropical areas; about 200 species, 4 in India.

Literature. JACOBS, M. (1967) florae Malesianae Praecunores XLV. Notes on Rinorea (Vioilceae) from Malesia and adjacent regions. Blumea 15(1):127 -138.

Notes. Rinorea Aublet (1775) has long been known under its later synonym Alsodeia Thouars (1806).



KEY TO THE SPECIES


1a. Leaves 2 - 5 cm long, subsessile; stamens exserted; anthers cohering into a cone 2. Rinorea heteroclita
b. Leaves 5 - 25 cm long, petiolate; stamens inserted; anthers free 2
2a. Flowers in elongated racemes; anthers with a distinct ventral appendage 3. Rinorea longiracemosa
b. Flowers fascicled or densely set on short rachis; anthers with a dorsal appendage 3
3a. Stipules 4 - 16 mm long, distinctly striate; leaves greenish when dry; fruits glabrous 1. Rinorea bengalensis
b. Stipules 1.5 - 6 mm long, scarcely striate; leaves dark-coloured when dry; fruits sparsely hairy 4. Rinorea macrophylla


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