(STEREO) Bulbophyllum gyaloglossum J.J.Verm., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3294
(STEREO) Bulbophyllum gyaloglossum J.J.Verm., flower, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3294
(STEREO) Bulbophyllum gyaloglossum J.J.Verm., flower detail, centre of flower, oblique lateral view, lateral sepal and petal removed, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3294
Bulbophyllum gyaloglossum J.J.Verm., Orchid Monogr. 7 (1993) 131, fig. 84, J.J. Vermeulen, drawing, plant habit and flower analysis, based on a NGF 22554 (Millar) (); Cruttwell 3153 (holo L)
Bulbophyllum gyaloglossum J.J.Verm., herbarium sheet, Cruttwell 3153 (holotype L)