Bulbophyllum hahlianum Schltr., flower, front view, photo A. Schuiteman, Leiden cult. 20030963
Bulbophyllum hahlianum Schltr., flower, lateral view, sepal and petal removed, photo E.F. de Vogel, Leiden cult. 20030898
(STEREO) Bulbophyllum hahlianum Schltr., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
(STEREO) Bulbophyllum hahlianum Schltr., flower, front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
(STEREO) Bulbophyllum hahlianum Schltr., flower, lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
(STEREO) Bulbophyllum hahlianum Schltr., flower detail, column and lip, front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
(STEREO) Bulbophyllum hahlianum Schltr., flower detail, column and lip, lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
(STEREO) Bulbophyllum hahlianum Schltr., flower detail, column, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 122
Bulbophyllum hahlianum Schltr., J.J. Vermeulen, drawing, plant habit and flower analysis
Bulbophyllum hahlianum, P. O'Byrne, drawing
Bulbophyllum hahlianum Schltr, N. Howcroft, drawing, plant habit and flower analysis
Bulbophyllum hahlianum Schltr., floral analysis, drawing J.J. Smith, from Docters van Leeuwen 9013
Bulbophyllum hahlianum Schltr., floral analysis, drawing J.J. Smith, from Feuilletau de Bruyn 124
Bulbophyllum hahlianum Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 246, fig. 935