Bulbophyllum setuliferum J.J.Verm. & Saw 2000 SECTION Hirtula Ridley 1907

Inflorescence and Plant

Flower Closeup

Photos courtesy of Rudi Hromniak and his and his Orchid Webpage

Part Shade cool Winter Spring

Common Name The Bristle Carrying Bulbophyllum

Flower Size .08" [2 mm]

Found in Penninsular Malaysia in lower montane forests on tree trunks and branches at elevations of 1500 to 1800 meters as a small sized, cool growing epiphyte with close to distant, depressed conical pseudobulb carrying a single, apical, elliptic to ovate to obovate, acute to slightly acuminate, petiolate base leaf that blooms in the winter and spring on a basal, peduncle patent, 8.8 to 15.6" [22 to 39 cm] long, provided with 5 to 6 bracts, rachis slightly to nodding, spindle-shaped, flattened or not, [11 to 41 cm] long, glabrous, without blackish dots, elongated, lax, simutaneously single to few, 22 to 68 flowered inflorescence with triangular, acute longer than the ovary floral bracts and carrying flowers that do not open well.

B aithorhachis is the most similar species but it differs in having a much more slender rachis, narrower sepals, and in the distribution of the hairs on the margins of the lip. In B aithorhachis the adaxial side is distincly hirsute towards the apex while B setuliferum is glaborus except for a finely hisute patch near the base, also the hairs along the lip margin are somewhat club shaped but in B aithorhachis they are not.


References W3 Tropicos, Kew Monocot list , IPNI ; *Gard. Bull. Singapore 55: 289 J J Verm & P O'Byrne 2003 drawing fide; Gard. Bull. Singapore 54: 126 J J Verm. 2002 drawing/photo fide; Wild Orchids of the Cameron Highlands REACH 2009 photo fide; Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015;