distribution in New Guinea
Microstylis heliophoba J.J.Sm., floral analysis, drawing J.J. Smith, based on Gjellerup 865
Microstylis undulata Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 47, fig. 161
Microstylis heliophoba J.J.Sm., herbarium sheet, Gjellerup 865 (holotype specimen BO)
Microstylis undulata Schltr., herbarium sheet, Schlechter 16631 (isotype specimen BO)
Microstylis undulata Schltr., herbarium sheet, Schlechter 16631 (isotype specimen L)