`SECTION Hirtula Ridley 1908

Type = Bulbophyllum hirtulum Ridl. 1900

They are epiphytes with a creeping rhizome giving rise to distinct to minute, rugose with age pseudobulbs carrying a single persistent leaf that blooms on a many flowered, subumbellate to elongate, racemose inflorescence carrying resupinate flowers and a pedicel that has the basal node level with to above the attachment of the floral bract. The free sepals are equal in length, and are usually 3 to 5 veined and glabrous to ciliate in texture. The single veined petals have ciliate margins. The auriculate, mobile lip is on a thin ligament and the column stigma is proximally protruding or not. The stelida are more or less 1/2 the length of the column or shorter and they may or may not have a tooth along the upper and lower margins. The anterior suface of the anther is concave or not and the anterior margin may be drawn out or not. There are 4 pollina.

There are 40 species in this section from montane forests at elevations up to 2500 meters in India to China, southward to Java, eastward to the Philippines and Sulawesi.

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 aithorhachis J.J.Verm 1996 Brunei, Borneo and Sumatra

2. Bulbophyllum anguste-ellipticum Seidenf. 1981 Thailand

3. *Bulbophyllum atratum J.J.Sm. 1917 Malaysia, Sumatra and Sabah Borneo

4. *Bulbophyllum carinilabium J.J.Verm. 1991 - Sabah Borneo

5. *Bulbophyllum cerebellum J J Verm 1996 Sabah Borneo

6. *Bulbophyllum clipeibulbum J.J.Verm. 2001 Indochina

7. * Bulbophyllum comberpictum J J Verm 2002 Sarawak and Sabah Borneo

8. Bulbophyllum concavilabium P.O'Byrne & P.T.Ong 2014 penninsular Malaysia and Sarawak Borneo

9. *Bulbophyllum debrincatiae J.J.Verm. 2002 Philippines

10. *Bulbophyllum dracunculus J.J.Verm. 2000 Sabah Borneo

11. *Bulbophyllum echinochilum Kraenzl. 1921 Sulawesi, Philippines

12. *Bulbophyllum eleiosurum J J Verm. & O'Byrne 2015 Borneo

13. *!Bulbophyllum eublepharum Rchb.f. 1861 China, eastern Himalayas and Myanmar

14. *Bulbophyllum gemma-reginae Borneo

15. *Bulbophyllum groeneveldtii J.J.Sm. 1920 Sumatra and Borneo

16. *Bulbophyllum grotianum J.J.Verm. 2002 Sarawak Borneo

17. *!Bulbophyllum hirtulum Ridl. 1900 Malaysia, Sumatra and Borneo

18. *Bulbophyllum janus J.J.Verm. 2002 Sumatra

19. *Bulbophyllum jolandae J.J.Verm. 1991 Borneo

20. Bulbophyllum kenchungianum P.O'Byrne & Gokusing 2016 Borneo

21. *Bulbophyllum lanuginosum J.J.Verm. 2002 Thailand

22. *Bulbophyllum lasioglossum Rolfe ex Ames 1905 Philippines

23. *Bulbophyllum limbatum Lindl. 1840 Myanmar, Thailand, Malaysia, Borneo and Sumatra

24. *Bulbophyllum lindleyanum Griff. 1851 India, Thailand and Myanmar

25. * Bulbophyllum mirabile Hallier 1896 Brunei, Kalimantan and Sabah Borneo

26. *Bulbophyllum negrosianum Ames 1912 Philippines

27. *Bulbophyllum nigrescens Rolfe 1910 Thailand, Yunnan Province China and Vietnam

28. *Bulbophyllum nigripetalum Rolfe 1891 Yunnan Province China and Thailand

29. * Bulbophyllum ochthodes J.J.Verm.2002 Malaysia

30. Bulbophyllum parviflorum C.S.P.Parish & Rchb.f. 1874 Eastern Himalayas, Bhutan, Myanmar, Thailand and Vietnam

31. *Bulbophyllum penicillium Parish & Rchb. f. 1874 Assam India, eastern Himalayas, Sikkim, Myanmar, Thailand and Vietnam

32. *Bulbophyllum pilosum J.J.Verm. 2002 Sabah Borneo

33. *Bulbophyllum polycyclum J.J.Verm. 1996 Borneo

34. *Bulbophyllum polygaliflorum J.J.Wood 1984 Borneo

35. *Bulbophyllum rariflorum J.J.Sm. 1908 Borneo

36. *Bulbophyllum scaphiforme J.J.Vermuellen 2002 Thailand (Type), Vietnam and China Yunnan

37. *Bulbophyllum secundum Hook.f. 1890 Assam India, eastern Himalayas, Nepal, Bhutan, Sikkim, Southern China, Myanmar, Thailand, Laos and Vietnam

38. *Bulbophyllum setuliferum J.J.Verm. & Saw 2000 Penninsular Malaysia

39. *Bulbophyllum sororculum J.J.Verm. 2002 Sulawesi

40. * Bulbophyllum spadiciflorum Tixier 1966 Vietnam

41. Bulbophyllum sp.35 New Guinea

42. Bulbophyllum thomsoni Hook. f. 1889 eastern Himalayas, Bhutan, Sikkim, Myanmar, Thailand and Vietnam

43. *Bulbophyllum tremulum Wight 1844-53 India

44. * Bulbophyllum trulliferum J J Verm & Lamb 1994 Sabah Borneo

45. *Bulbophyllum xenosum J.J.Verm. 1996 penninsular Malaysia and Borneo

46. *Bulbophyllum xiphion J.J.Verm. 1996 Borneo

    References W3 Tropicos, Kew Monocot list , IPNI ; Gard. Bull. Singapore 54:1-154 J J Verm. 2002, Flora of China 25: 404–440. 2009; Genera Orchidacearum Vol 6 Epidendroideae Pt 3 Pridgeon, Cribb Chase & Ramussen 2014; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 photos/drawing fide;