`SECTION Biflorae Garay, Hamer, & Siegrist 1994

TYPE = Bulbophyllum biflorum Teijsm. & Binn. 1855

Uniquely distinguished within the genus by the 2 flowered inflorescence which have the portions of the rachis between the floral bract attachment and the pedicel node fused

5 species make up this section in montane forests at elevations up to 1200 meters within Thailand, penninsular Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo and the Philippines.

Entries below with an asterix are listed in publications by J J Vermeullen and so are more likely correct than ones without. Species with a question mark in front, seem to me to not conform and so please use with caution. If a sectional name has a "`" in front then it is a complete section with all the known species represented.

1. *!Bulbophyllum biflorum Teijsm. & Binn. 1855 Java, Sumatra, Bali, Borneo, the Philippines and the Thai and Malaysian peninsula

2. Bulbophyllum hymenochilum Kraenzl. 1905 Borneo

3. *Bulbophyllum puguahaanense Ames 1915 Malayasa, Borneo and the Philippines

4. *Bulbophyllum rhombifolium (Carr) Masam. 1942 Malaysia and Borneo

5. Bulbophyllum siederi Garay 1999 Sumatra

   References W3 Tropicos, Kew Monocot list , IPNI ; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015; Genera Orchidacearum Vol 6 Epidendroideae Pt 3 Pridgeon, Cribb Chase & Ramussen 2014