Fissistigma rufinerve (Hook. f. & Thomson) Merr. in Philip. J. Sci. (Bot.) 15: 136. 1919. Melodorum rufinerve Hook. f. & Thomson, Fl. Ind. 121 . 1855 & in Fl. Brit. India 1: 81. 1872.

Large woody climbers; branches slender, dark coloured; branchlets glabrous; buds golden pubescent. Leaves narrow-elliptic, rounded or retuse at base, tapering to an obtuse or slightly acute apex, 16 - 26 x 5 - 6.5 cm, glabrous above, glaucous and minutely pubescent beneath; main lateral nerves about 12 - 14 pairs, slender, arching; petioles ca 1 cm long, glabrous. Flowers minute, in few-flowered leaf-opposed pubescent cymes; pedicels absent or very short, golden pubescent; bracts minute, scale-like, submedian. Sepals 3, connate at base, broadly ovate, pubescent outside. Petals 6 (3 + 3), fleshy. Stamens numerous; connectives apiculate. Carpels multiovulate. Ripe carpels not seen.

Fl. not known.

Distrib. India: Assam.

Bangladesh.

Notes. An imperfectly known species, very rare and not collected recently.