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Genus :


Family :



Twining lianas. Stem and branches terete, glabrescent or thinly hairy when young. Leaves fleshy, ovate-oblong, elliptic, oblong or linear-oblong, glabrescent or thinly hairy. Cymes umbellate, solitary at the nodes, pubescent. Calyx lobes ovate to ovate-lanceolate, margin ciliate, glandular within at the base. Corolla sub-rotate or shallowly campanulate, lobes ovate to ovate-lanceolate with ciliate margin, imbricate to the right. Corona absent. Gynostegium short, within the tube. Anthers broad, with thin white membranous tip. Pollinia oblong-lanceolate, erect, solitary. Caudicles narrow, long, curved at the back perpendicularly to the corpuscles, corpuscles linear, narrow. Follicles ovoid or globose. Seeds without a coma.

Key to the species

Serial Key Reference
1a. Petiole 0.4-1.4 cm long; lamina 1.0-1.8 cm broad, glabrous except margin; corolla lobes glabrous on both surfaces; fruit ovoid with curved and acute tips, glabrous S. carinatus
1b. Petiole 1.5-2.0 cm long; lamina 3.5- 4.5 broad, thinly pubescent on both surfaces; corolla lobes thinly pubescent externally when young, densely pubescent inside; fruits globose, hairy S. globosus