Monographs Details: Ceratostema flexuosum (A.C.Sm.) J.F.Macbr.
Authority: Smith, Albert C. 1952. Plants collected in Ecuador by W. H. camp. Vaceiniaceae. Mem. New York Bot. Gard. 8 (1): 41-85.

Periclesia flexuosa A. C. Smith, Contr. U. S. Nat. Herb. 28: 357. pl. 7. 1932.

The species upon which the genus Periclesia was founded is also seen to be inseparable from Ceratostema, in view of subsequently described species of the complex. The 4-merous flowers and connate filaments can now hardly be considered of generic significance. The species remains known only from the type, Lobb 79, of which the precise locality is uncertain.