Macrosolen geminatus Danser

Glabrous, rarely somewhat glaucous. Leaves opposite; lamina usually elliptic or ovate, sometimes lanceolate, (4—)6—12(—16) by (1—)3—8 cm, cuneate to truncate at the base to a petiole 0-10(-15) mm long ( I.c., rarely sessile), variable at the apex from acuminate and acute to bluntly obtuse or rounded, dull or glossy above, usually dull below; venation pinnate with the midrib prominent below and the larger veins distinct above. Inflorescencess at the nodes, normally a spike of 1 or 2 or rarely 3 opposite subcapitate pairs of flowers; axis 3-8(-12) mm long, sometimes with an involucre of 1-3 pairs of small bracts at or near the base; pedicels vestigial or very rarely up to 2 mm long; central bract usually acute, 1.5-2 mm long; lateral bracts slightly shorter, usually connate to near the apex and enclosing the ovary. Corolla in mature bud 6-merous, 9-16(-23) mm long, strongly winged and inflated to near the middle, cylindrical above, obtuse at the apex, mostly yellow or red below, dark coloured in the middle and green or yellow above; tube in the open flower 3—8(—12) mm long, campanulate, with the lobes fully reflexed slightly higher. Anther 1-3.5 mm long, obtuse, longer or shorter than the free part of the filament. Fig. 37c, d.