(STEREO) Bulbophyllum ustusfortiter J.J.Verm., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 31721, (holotype)
(STEREO) Bulbophyllum ustusfortiter J.J.Verm., flowers, view from above, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 31721, (holotype)
(STEREO) Bulbophyllum ustusfortiter J.J.Verm., flowers, oblique front view from above, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 31721, (holotype)
(STEREO) Bulbophyllum ustusfortiter 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 31721, (holotype)
(STEREO) Bulbophyllum ustusfortiter 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 31721, (holotype)
(STEREO) Bulbophyllum ustusfortiter J.J.Verm., flower detail, centre of flower, lateral view, lateral sepal and petal removed, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 31721, (holotype)
Bulbophyllum ustusfortiter J.J.Verm., Blumea 38 (1993) 155, fig. 1, J.J. Vermeulen, drawing, flower analysis, based on Leiden cult. (Schuiteman, Mulder & Vogel 90-609) 31721 (holo L, alc. only)
Bulbophyllum ustusfortiter J.J.Verm., J.J. Vermeulen, sketch, anther and pollinia, based on Leiden cult. (Schuiteman, Mulder & Vogel 90-609) 31721 (holo L, alc. only)
Bulbophyllum ustusfortiter J.J.Verm., J.J. Vermeulen, sketch, anther and pollinia, based on Leiden cult. (Schuiteman, Mulder & Vogel 90-609) 31721 (holo L, alc. only)