SECTION Oxysepala [Wight] Rchb.f 1861

TYPE: = Bulbophyllum clandestinum Lindl.

Synonyms sect. Sphaeracron Schlechter 1913

Characterized by pendent rhizomes on rocks or trees with very small pseduobulbs aften adpressed to the rhizome and carrying a single, fleshy leaf that blooms with single to 2 flowered inflroescecnce trhat arise all along the stem, are sessile and have a white to yellow flower. The sepals are elongate and the petals and labellum are small.

1. !Bulbophyllum clandestinum Lindl. 1841 Thailand, Laos, Vietnam, Burma, Malaysia, Sulawesi, the Molouccas, Sumatra, Borneo, New Guinea, Java, the Philippines and Fiji

2. Bulbophyllum flavum Schltr. 1913 New Guinea

3. Bulbophyllum gadgarrense Rupp 1950 Australia

4. Bulbophyllum lamingtonense D.L.Jones 1993 Australia

5. Bulbophyllum lewisense B. Gray & D.L. Jones 1989 Australia

6. Bulbophyllum piliferum J.J.Sm. 1908 Papua New Guinea

7. Bulbophyllum pungens Schltr. 1913 New Guinea

8. Bulbophyllum schillerianum Rchb. f.1860 Australia

9. Bulbophyllum sp. New Guinea

10. Bulbophyllum trichaete Schltr. 1913 New Guinea