distribution in New Guinea
Oberonia quadrata Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 64, fig. 230
Oberonia quadrata Schltr., herbarium sheet, Schlechter 18215 (isotype specimen BO)
Oberonia quadrata Schltr., herbarium sheet, Schlechter 18215 (isosyntype specimen L)