Monographs Details: Callichlamys
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.
Discussion:4. Callichlamys Miquel, Linnaea 18: 254. 1844.
Type. C. riparia Miq. = C. latifolia (L. C. Rich.) K. Schum.
This monotypic genus is characterized by yellow '"Anemopaegma-type"' flowers with a well-developed disc, small anthers appressed together in pairs, a racemose inflorescence, and especially the large inflated calyx which is thick and spongy when fresh. It lacks interpetiolar glandular fields and has simple tendrils and terete branchlets. The fruit is oblong with thick, woody, smooth flat valves. It ranges from southern Mexico to Brazil and Bolivia.