Bulbophyllum artostigma J.J.Verm., flower, front view, photo E.F. de Vogel, Leiden cult. 930554 (holotype)
Bulbophyllum artostigma J.J.Verm., flower, oblique front view, photo A. Schuiteman, Leiden cult. 930554
Bulbophyllum artostigma J.J.Verm., flower detail, centre of flower, oblique lateral view, photo A. Schuiteman, Leiden cult. 930554
Bulbophyllum artostigma J.J.Verm., flower detail, column and lip base, oblique front view, photo A. Schuiteman, Leiden cult. 930554
(STEREO) Bulbophyllum artostigma J.J.Verm., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 1763, (holotype)
(STEREO) Bulbophyllum artostigma J.J.Verm., flower, oblique lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 1763, (holotype)
(STEREO) Bulbophyllum artostigma J.J.Verm., flower, oblique lateral view from above, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 1763, (holotype)
(STEREO) Bulbophyllum artostigma J.J.Verm., flower, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 1763, (holotype)
Bulbophyllum artostigma J.J.Verm., Orchid Monogr. 7 (1993) 153, fig. 105, J.J. Vermeulen, drawing, plant habit and flower analysis, based on Jongejan cult. (Reeve) 1763 = Leiden cult. 930554 (holo L, alc. only)