An epiphytic herb of which presently only three species are known, one from Java, one from Sumatra, and one from New Guinea - B. papuana Schltr. A member of the subtribe Sarcanthinae , the genus is intermediate in alliance between Thrixspermum Lour. and Sarcochilus R. Brown. Bogoria raciborskii J.J.Sm.
Column is extended into long excavate and channel-like foot which is continuous with the lip.
Pollinia 2, each split in equal halves.