Botanical Survey of India | Flora of India

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Shrubs or trees, dioecious, up to 20 m tall, with simple, branched, or stellate hairs. Leaves alternate, mostly crowded at apices of branches, penninerved; petioles pulvinate at apex, mostly geniculate; stipules usually caducous. Male inflorescences axillary or cauli- or ramiflorous, usually fascicled, very narrowly thyrsiform, sometimes apparently racemiform or catkin-like, erect or pendulous; bracts small, often conduplicate, sometimes adnate to peduncles or encircling their bases. Flowers: pedicellate; sepals (3 -) 4 or 5, free, imbricate; petals absent; stamens 4 - 8, free; anthers basifixed; disc glands minute or obsolete, interstaminal, free or connate; pistillode present, peltate at the apex. Female inflorescences axillary, cauli- or ramiflorous, usually few together or often arising singly, racemose, short and erect or elongated and pendulous; bracts ovate to lanceolate. Flowers: pedicels articulated; sepals 4 or 5, free, imbricate, caducous; petals absent; disc absent; staminodes absent; ovary 2 - 5-locular; locules biovulate; style minute or obsolete; stigmas 2 - 5, flabellate or peltate, reflexed. Fruits capsular, fleshy and indehiscent or tardily dehiscent or dry and dehiscent, 2 - 5-locular; seeds broad, usually flattened, often enclosed in a fleshy outer layer.

Indo-Malesia, extending to the W. Pacific Islands, ca 56 species; 3 species indigenous to India and one cultivated.

Literature. CHAKRABARTY, T & M. GANGOPADHYAY (1997). The genus Baccaurea (Euphorbiaceae) in the Indian subcontinent. J. Econ. Taxon. Bot. 21(3): 525 - 534.



KEY TO THE SPECIES


1 a. Female inflorescences and infructescences 2 - 5 cm long; fruits 8 - 15 x 6 - 9 mm, bilocular, readily dehiscent 2. Baccaurea javanica
b. Female inflorescences and infructescences 10 - 40 cm long; fruits 15 - 35 x 10 - 35 mm, trilocular, indehiscent or tardily dehiscent 2
2 a. Leaves narrowly heart-shaped or cordate at base; stipules 5 - 10 mm long, 1.5 - 3.5 mm wide (cult.) 0. Baccaurea motleyana
b. Leaves cuneate, attenuate or acute not cordate at base; stipules 1.5 - 6 mm long, 1 - 2.5 mm wide 3
3 a. Leaves membranous to chartaceous, sparsely furfuraceous above and beneath, often brittle when dry; tertiary nerves distant or lax, mostly branched; male inflorescences very slender (rachis up to 0.8 mm thick at base) with up to 0.5 mm long lateral branches, sparsely papillosepuberulous; sepals glabrous or sparsely puberulous 1. Baccaurea courtallensis
b. Leaves coriaceous, not furfuraceous, not brittle when dry; tertiary nerves closely parallel, mostly unbranched; male inflorescences stouter (rachis mostly 1 - 1.3 mm thick at base), with longer (up to 2 mm long) lateral branches, densely papillose puberulous; sepals densely puberulous 3. Baccaurea ramiflora


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