Bulbophyllum hyalosemoides Verm & O'Byrne 2011 SECTION Sestochilus [Breda]Benth & Hkr.f 1883

Photo by © Art Vogel

Common Name The Hyalosema-Like Bulbophyllum

Flower Size 1 to 4” [2.5 to 10 cm]

Found in Borneo and Sulawesi in low and open forests in karst sinkholes and in grasslands as well as in primary forests at elevations of 1100 to 1400 meters as a small sized, warm growing epiphyte with 1.2 to 3.6” [3 to 9 cm] between each distinct, ovoid pseudobulb carrying a single, apical, erect, elliptic to obovate, obtuse to subacute, gradually narrowing below into the .8 to 2” [2 to 5 cm] long, petiolate base leaf that blooms in the spring on a basal, 2.4 to 6.4” [6 to 16 cm] long, single flowered inflorescence with an acute floral bract.

Separated from B lobbii by the median sepal being wider than the laterals and in the adaxial side of the lip being minutely papillose towards the base. It differs from B dearei in having the lip with dorsalventrally flattened, non-hirsute auricles next to the ligament.

Synonyms Bulbophyllum microglossum auct. non Ridley Chan etal. 1994 fig 8

References W3 Tropicos, Kew Monocot list , IPNI ; Bulbophyllum of Sulawesi Verm & O’Byrne 2011 drawing/photo fide; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 photos/drawing fide;