Bulbophyllum calviventer J.J.Verm., plant habit, front view, oblique front view, photo J.J. Vermeulen, based on Leiden cult 20030400
Bulbophyllum calviventer J.J.Verm., flower detail, centre of flower, oblique lateral view, photo J.J. Vermeulen, based on Leiden cult 20030400
Bulbophyllum calviventer J.J.Verm., plant habit, photo J.J. Vermeulen, based on Leiden cult 20030400
Bulbophyllum calviventer J.J.Verm., flower, oblique front view, photo E.F. de Vogel, Leiden cult. 20030400
Bulbophyllum calviventer J.J.Verm., flower detail, column and lip, oblique front view, photo E.F. de Vogel, Leiden cult. 20030400
Bulbophyllum calviventer J.J.Verm., Orchid Monogr. 7 (1993) 156, fig. 109, J.J. Vermeulen, drawing, plant habit and flower analysis, based on a-c,e,g-l Sands et al. 1816 (holo K); d,f Cruttwell 3168 ()