Botanical Survey of India | Flora of India

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Clausena lansium (Lour.) Skeels, U.S.D.A. Bur. Pl. Industr. Bull. 168: 31. 1909. Quinaria lansium Lour., Fl. Cochinch. 272. 1790. Cookia wampii Blanco, Fl. Filip. 358. 1837. Clausena wampii (Blanco) Oliver in 1. Linn. Soc. Bot. 5: Suppl. 2: 34. 1861; Hook. f., Fl. Brit. India 1: 505. 1875.

Trees, 4 - 12 m high; branchlets, petiole and inflorescences glandular pustulate. Leaves up to 30 cm long; leaflets 7 - 9, alternate, ovate, elliptic lanceolate, oblique at base, obtuse or acuminate at apex, entire or crenulate along margins, 3.5 - 9.5 (-13) x 2 - 4.5(-6.5) cm, coriaceous, glabrous; secondary nerves 6 - 8 pairs, spreading. Panicles terminal and axillary (from uppermost leaf axils), branching at base, up to 25 cm long deosely puberulous. Flowers obovoid in buds, ca 6 mm long; pedicels short, stout. Calyx 5-lobed, lobes ovate, acute, ca 0.5 mm long, pubescent. Petals elliptic-oblong, narrowed at base, obtuse at apex, ca 5 x 2.5 mm, white, glandular, puberulent abaxially, glabrous adaxially. Stamens 10; filaments subulate above, dilated below, ca 4 mm long, glabrous; anthers oblong, ca 1.5 mm long. Gynophore ca 1 mm high and broad, cupular, glandulose, glabrous. Ovary globose, ca 2 x 2 mm, pilose, 5-lobed, 5-locular, each with 2 superimposed ovules; style short, 1 mm long, glandular, glabrous; stigma capitate, 5-lobed, as broad as or slightly broader than the style. Berry subglobose, 5-lobed, ca 15 mm across, downy; seeds 5 or 1, oblong-ovoid.

Fl. March - April; Fr.june - july.

Distrib. Native of S. China and Indochina. Cultivated in India for its edible fruits that are used for making jams.

Notes. The species is distinct from all other species of the genus in having a star-shaped flower bud and a 5-angled densely pilose ovary. The ovary locules contain scattered hairs arising from the dorsal and outer portion of the lateral walls, which usually grow towards the central axis of the ovary.

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