Chisocheton nicobarianus Debnath & Sreekumar in J. Econ. Tax. Bot. 16: 553. 1992.

Tree, 15 - 30 m tall; bark lenticellate.· Leaves 20 - 60 cm long, pseudogemmulate; leaflets 6 - 16, opposite or subopposite, ovate-oblong or elliptic, acuminate at apex, 4 - 20 x 1.5 - 8 cm, subcoriaceous, glaucous and sparsely pubescent beneath; secondary nerves 8 - 14 on each side; petiolules 4 - 8 mm long, hispid. Flowers in axillary or supraaxillary 30 - 60 cm long loose panicles with clustered side branches. Flowers oblong; 8 - 14 mm long, white, fragrant; pedicels 1 - 1.5 cm long, hispid. Calyx cupular, 1.5 - 2.5 mm long, obscurely 4-lobed, coriaceous, hispid. Petals 4, spathulate, 8 - 12 mm long, leathery, sparsely hirtellus, imbricate. Disk absent. Staminal tube 6 - 10 mm long with 2-lobed appendages at apex, villous on both sides except at apex; stamens 8; anthers 1 - 2 mm long, hirsute on dorsal side. Ovary oblong, to 1.5 mm long, hirsute; style 6 - 6.5 mm long, hirsute; stigma capitate with an annular rim, truncate at apex. Capsules globose, ca 3.5 cm; seeds 2, discoid.

Fl. & Fr. May - June.

Distrib. India: Andaman & Nicobar Islands, S. Nicobar.

Notes. The inclusion of C. grandiflorus Kurz in the flora of British India by Hiern (1875: 552) seems to be an error. For details vide Parkinson (1923: 119).