Botanical Survey of India | Flora of India

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Cratoxylum sumatranum (Jack) Blume subsp. neriifolium (Kurz) Gog. in Blumea 15: 463.1967. C. neriifolium Kurz in J. Asiat. Soc. Beng. 41: 293.1872; Dyer in Fl. Brit. India 1: 257. 1874.


Trees up to 20 m tall; stems dichotomously branched from base; branchlets terete, glabrous. Leaves 3 - 12.5 x 1 - 5 cm, ovate-lanceolate, nearly cordate to cuneate or obtuse at base, acute to shortly acuminate at apex, glabrous, glaucous beneath; sessile to subsessile. Flowers small, in 2 - 3-flowered, axillary, cymose panicles. Sepals 5, 5 - 7 x 4.5 - 5 mm, elliptic-oblong, glabrous. Petals 5, bright or brick red, 6 - 7 x 4.5 - 5 mm, obovate, entire, gland-dotted. Staminal phalanges 3 with 25 or more in each, 5 - 8 mm long. Ovary 3 - 3.5 mm long, ovoid to ellipsoid; styles 3, 2.5 mm long. Capsules 9 - 10 x 3 - 4 mm, oblongoid, covered by accrescent sepals, seeds 6 - 8 in each locule. Seeds 3.5 - 5 mm long, obovate.

Fl. May - Aug.; Fr. Sept. - March.

Distrib. India: Mizoram (S. Lushai hills); rare.

Bangladesh, Myanmar, Thailand and Vietnam.

Notes. Wood used for making ploughs, tool handles and for charcoal.

Chromosome numbers n = 7, 2n = 14 (Tixier, P., Rev. Cytol. Paris 14: 1. 1953). Pollen grains 3-zonocolporate, psilate (Khan, H.A., J. Palyn. Pl. 5: 97 - 99. 1969).




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