Ascoglossum calopterum (Rchb.f.) Schltr., inflorescence, photo P. Jongejan, based on Jongejan 1461, from Papua New Guinea
Ascoglossum calopterum (Rchb.f.) Schltr., floral analysis, drawing Marasigan, Aguilar, Castelo, and Ico in Philipp. J. Sci. 59 (1936) pl. 5, fig. 2-10