SECTION Oxysepala Bentham & J D Hook.f. 1883

Type: Bulbophyllum clandestinum Lindl. 1841

SYNONYMS - Oxysepala Wight 1851; SECTION Sphaeracron Schltr. 1912

Single flowered inflorescence with resupinate flowers, tubular floral bracts, the pedicel basal node level with the attachment of the floral bract, the sepals usually nearly equal, usually 3 veined, margins glabrous to ciliate, with a free dorsal sepal, laterals free to connate along their lower margins. Single veined petals have entire to erose, glabrous to ciliate. The mobile lip is on a thin ligament and is undivided, auriculate to trilobed. There are 2 or 4 pollina.

There are about 150 species in this section confined to India, China, Indochina, to Australia and the Pacific in forests at elevations up to 3000 meters

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.

1. Bulbophyllum angusteovatum Seidenf. 1979 Thailand

2. Bulbophyllum belonaeglossum J.J.Verm. & A.L.Lamb 2008

3. Bulbophyllum ciliolatum Schltr. 1913 New Guinea

4. Bulbophyllum citrinilabre J.J.Sm. 1913 New Guinea and the Solomon Islands

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

6. Bulbophyllum colubrimodum Ames 1923 Philippines

7. XXXXBulbophyllum crassulifolium (A. Cunn.) Rupp 1937 Australia from SE New South Wales to SE Queensland

8. Bulbophyllum filicaule J.J.Sm. 1913 New Guinea

9. Bulbophyllum flavum Schltr. 1913 New Guinea

10. Bulbophyllum floribundum J.J.Sm. 1912 New Guinea

11. Bulbophyllum gadgarrense Rupp 1950 Australia

12. Bulbophyllum glandulosum Ames 1923 Philippines

13. Bulbophyllum grandimesense B.Gray & D.L.Jones 1989 Queensland Australia

14. Bulbophyllum hollandianum J.J.Sm. 1913 New Guinea

15. Bulbophyllum kauloense Schltr. 1913 New Guinea

16. Bulbophyllum korimense J.J.Sm. 1929 New Guinea, Solomin Islands

17. Bulbophyllum lamingtonense D.L.Jones 1993 Australia

18. Bulbophyllum leptoglossum J.J.Verm. & A.L.Lamb 2008 Sarawak Borneo

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

20. Bulbophyllum muscohaerens J.J.Verm. & A.L.Lamb 1994 Sarawak and Sabah Borneo

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

22. Bulbophyllum pseudofilicaule J.J.Sm. 1935 New Guinea

23. Bulbophyllum pungens Schltr. 1913 New Guinea

24. Bulbophyllum rhopalophorum Schltr. 1913 New Guinea

25. Bulbophyllum riparium J.J.Sm. 1929 New Guinea

26. Bulbophyllum schillerianum Rchb. f.1860 Australia

27. Bulbophyllum semiteres Schltr. 1913 New Guinea

28. Bulbophyllum shepherdi F. Muell. 1862 Queensland and New South Wales Australia

    XXXX Bulbophyllum sp.32 New Guinea

    XXXX Bulbophyllum sp.33 New Guinea

    XXXX Bulbophyllum sp.41 MAYBE ---New Guinea

29. Bulbophyllum sphaeracron Schltr. 1913 New Guinea

30. Bulbophyllum subtrilobatum Schltr. 1913 New Guinea

31. Bulbophyllum tentaculiferum Schltr. 1913 New Guinea

32. Bulbophyllum tenue Schltr. 1913 New Guinea

33. Bulbophyllum theioglossum Schltr. 1913 New Guinea

34. *!Bulbophyllum tortuosum Lindl. [Bl.] 1830 eastern Himalayas, Bhutan, Myanmar, Thailand, Malaysia, Laos, Vietnam, Malaysia, Borneo, Java and Sumatra

35. Bulbophyllum trachybracteum Schltr. 1913 New Guinea

36. Bulbophyllum trichaete Schltr. 1913 Papua New Guinea

37. Bulbophyllum triclavigerum J.J.Sm.1913 New Guinea

38. Bulbophyllum tumoriferum Schltr. 1913 New Guinea

39. Bulbophyllum wadsworthii Dockrill 1964 Australia

40. Bulbophyllum windsorense B.Gray & D.L.Jones 1989