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Published In: Species Plantarum 1: 443. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: ABDUL GHAFOOR
General/Distribution: A small genus of c. 7 species, distributed in tropical coastal swamps and along tidal streams or deltas.


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Medium sized trees or shrubs with branched stilt roots from lower stem. Leaves elliptic, opposite decussate, leathery, mostly black dotted beneath, glabrous, mucronate at tip; stipules lanceolate, ± red when young. Inflorescence pedunculate, usually biparous or simple cyme. Flowers c. 1 cm long with connate, paired and persistent cup-shaped bracteoles, perigynous. Sepals 4, basally united into a short tube, lobes large, leathery, accrescent, enlarged and reflexed in fruit. Petals as many as sepals, lanceolate, entire, caducous, inserted below the disc. Stamens 8-12, inserted on margins of crenulate disc, filaments shorter than the narrowly oblong, basifixed triquetrous multilocellate anthers, dehiscing by a large ventral valve. Ovary bicarpellary, syncarpous, half-inferior, protruding beyond hypanthium, bilocular, each locule with a pair of pendulous ovules; style inconspicuous, upto 6 mm long, with simple or obscurely 2-lobed stigma. Fruit ovoid to obpyriform, mostly 1-seeded, indehiscent, rough or granular surfaced berry. Seeds viviparous, embryo non-endospermic, cotyledons fused into a fleshy mass continuous with but broken off from the terete hy¬pocotyl which perforates fruit apex.

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1 Inflorescence many-flowered (flowers usually more than 4), peduncles longer than the subtending petioles. Flowers pedicellate; bracteoles united at the base only. Petals involute, villous at the margins. Stamens 8, 4 epipetalous and 4 episepalous 1 Rhizophora mucronata
+ Inflorescence 2-flowered, peduncles shorter than the petioles. Flowers sessile; bracteoles united throughout their length to form a cupule. Petals flat, glabrous. Stamens mostly 12, 4 epipetalous, 8 episepalous 2 Rhizophora apiculata
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