Paph. robinsonianum belongs to a group of species that includes Paph. volonteanum and has a unique fluted staminode dorsal surface that does not look like this flower. The illustration and photo of Paph. robinsonianum also show the staminode overtop of the infolds of the pouch, not behind. The staminode of this plant matches Paph. appletonianum, as does the nobby structure and markings on the infolds of the pouch. Several photos of Paph. appletonianum var. cerveranum shown in the orchidroots.com and the image of a dried specimen in Kew's POWO is a close match to this flower. Kew considers P. appletonianum var. cerveranum to be synonymous with P. appletonianum; however, it is a validly published taxon in the Orchid Atlas in 2007.