SECTION Macrocaulia (Bl.) Aver 1994

LECTOTYPE SPECIES: Diphyes ovalifolia Bl. = Bulbophyllum ovalifolium (Bl.) Lindl.

SYNONYMS - Diphyes sect. Macrocaulia Bl. 1825; SECTION Monilibulbus J.J.Sm. 1914 - SECTION Diasperia Bl. 1825 - SECTION. Odoardiana Pfitz. 1889

Vermuellen 2014 states that the plants are epiphytes with a creeping rhizome giving rise to shoots proximally fused to the pseudobulbs carrying a single, apical, usually persistent leaf that blooms on a single flowered inflorescence carrying resupinate flowers that have the pedicel basal node above the attachment of the floral bracts. Usually the dorsal sepal is free, has 3 to 5 veins and has entire to glabrous to erose to papillose margins, the laterals are 1 to 5 times as long as the dorsal sepal. The petals have 1 to 3 veins and the margins are entire to erose. The usually undivided, mobile lip is on a thin ligament, the column stigma is proximally protruding or not, the stelida are with or without a slight tooth along the upper and lower margins. The anterior surface of the anther is concave or not and the anterior margin is drawn out or not. There are 2 to 4 pollina with or without stipes.

Vermuellen etal 2015 state that the creeping, brittle rhizomes break off just in front of the part fused to or covered by the prostrate pseudobulb. The peduncle scales are all close to the base of the peduncle but in some species [B dransfieldii and B streptomorphum] the peduncle is so short that the character is not obvious. Usually the abaxial side of the lip does not have a groove over the median line, exeptions are B anisopterum, B streptomorphum, B longistellidum and B tristriatum.

There are more or less 68 species in this section from forests up to elevations of 2500 meters in India, China, Myanmar, Laos, Vietnam, Thailand, penninsular Malaysia, Sumatra, Java, Bali, Borneo, Sulawesi 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.

  1. Bulbophyllum adjungens Seidenf. 1979 Thailand

  2. *Bulbophyllum alatum J.J.Verm. 1991 Sabah Borneo

  3. *Bulbophyllum anguliferum Ames & C. Schweinf. 1920 Borneo

  4. *Bulbophyllum anisopterum J J Verm & O'byrne 2003 - Borneo

  5. *Bulbophyllum aschemon J.J.Verm. & A.L.Lamb 2008 Malaysia and Sarawak Borneo

  6. *Bulbophyllum auriculatum J.J.Verm. & P.O'Byrne 2003 Sulawesi

  7. Bulbophyllum belliae J.J.Verm. & A.L.Lamb 2008 Sabah Borneo

  8. *Bulbophyllum bilobipetalum J.J.Sm. 1927 Kalimantan Borneo

  9. *Bulbophyllum biseriale Carr 1930 Thailand and Malaysia

  10. *Bulbophyllum calyptogyne J J Verm & O'Byrne 2011 - Sulawesi

  11. *Bulbophyllum carianum J J Verm. 2000 - Borneo

  12. *Bulbophyllum catenarium Ridl. 1894 Malaysia, Borneo and Vietnam

  13. *Bulbophyllum cernuum [Bl.]Lindl. 1830 Thailand, Borneo and Java

  14. *Bulbophyllum chanii J.J.Verm. & A.L.Lamb 1991 Sabah Borneo

  15. Bulbophyllum chlorascens J.J.Sm. 1927 Sumatra

  16. *Bulbophyllum coelochilum J.J.Verm.1991 Sabah Borneo

  17. Bulbophyllum connatum Carr 1933 Sumatra

  18. *Bulbophyllum corticola Schlechter 1010 - Borneo

  19. *Bulbophyllum dibothron J.J.Verm. & A.L.Lamb 1994 Sabah and Sarawak

  20. *Bulbophyllum dransfeldii J J Verm. 1991 - Borneo

  21. Bulbophyllum fulgens J.J.Verm. 1996 Sumatra

  22. Bulbophyllum gofferjeei J J Verm & Lamb 2013 Sabah Borneo

  23. Bulbophyllum hirsutum Lindl. 1830 Java

  24. Bulbophyllum hodgsonii M.R.Hend. 1927 Malaysia in the Cameron Highlands

  25. Bulbophyllum ignevenosum Carr 1930 penninsular Malaysia and Vietnam

  26. Bulbophyllum inaequale (Blume) Lindl. 1830 Java

  27. *Bulbophyllum jayii J J Verm & Lamb 2013 - Borneo

  28. *Bulbophyllum kestron J.J.Verm. & A.L.Lamb 1988 Sabah Borneo

  29. *Bulbophyllum koilobasis J J Verm., O'Byrne & Lamb 2015 - Borneo

  30. Bulbophyllum konstantinovii Aver. 2013 Cambodia

  31. *Bulbophyllum lacinulosum J J Sm. 1927 - Borneo

  32. *Bulbophyllum lambii J.J.Verm. 1991 Borneo

  33. *Bulbophyllum latisepalum Ames & C.Schweinf. 1920 Mt Kinabalu Borneo

  34. *Bulbophyllum leniae J.J.Verm. 1991 Borneo and Sulawesi

  35. *Bulbophyllum leproglossum J.J.Verm. & A.L.Lamb 1988 Borneo

  36. *Bulbophyllum longhutense J.J.Sm. 1931 Sabah and Kalimantan Borneo

  37. *Bulbophyllum longistelidium Ridl. 1924 penninsular Malaysia and Sabah Borneo

  38. *Bulbophyllum malleolabrum Carr 1932 Malaysia, Borneo and Sulawesi

  39. Bulbophyllum menghaiense Z.H.Tsi 1981 Yunnan China

  40. *Bulbophyllum minutulum Ridl. ex Burkill & Holttum 1923 penninsular Malaysia and Borneo

  41. *Bulbophyllum montense Ridl. 1894 Borneo

  42. *Bulbophyllum muluense J.J.Wood 1984 Borneo

  43. *Bulbophyllum nubinatum J J Verm & Lamb 1988 - Borneo

  44. *Bulbophyllum odoardii Rchb.f & Pfitz 1885 - Borneo

  45. *!Bulbophyllum ovalifolium [Bl] Lindl. 1830 Chinese Himalayas, Thailand, Malaysia, Sumatra, Java, Borneo, lesser Sunda Islands and Sulawesi

  46. Bulbophyllum pan Ridl. 1915 penninsular Malaysia

  47. *Bulbophyllum pelicanopsis J.J.Verm. & A.L.Lamb 1988 Sabah Borneo

  48. Bulbophyllum perryi J.J.Verm. & Kindler 2015 Sumatra?

  49. Bulbophyllum phaeoneuron Schltr. 1911 Borneo

  50. *Bulbophyllum proculcastris J J Verm. 20000 - Borneo

  51. Bulbophyllum puntjakense J.J.Sm. 1907 Java, Borneo and the Lesser Sunda Islands

  52. *Bulbophyllum pyridion J J Verm 1991 - Borneo

  53. Bulbophyllum remiferum Carr 1933 Sumatra

  54. *Bulbophyllum scabrum J.J.Verm. & A.L.Lamb 1988 Borneo

  55. *Bulbophyllum schefferi (Kuntze) Schltr. 1915 Java, Sumatra, Sabah, Kalimantan and Sarawak Borneo as well as the Philippines

  56. *Bulbophyllum similissimum J.J.Verm.1991 Borneo

  57. Bulbophyllum simplicilabellum Seidenf. 1979 Thailand

  58. Bulbophyllum stormii J.J. Sm. 1907 Malaysia, Sumatra and Borneo

  59. *Bulbophyllum streptomorphum J J Verm., O'Byrne and Lamb 2015 - Borneo

  60. Bulbophyllum subtenellum Seidenf. 1979 Thailand

  61. Bulbophyllum tenellum Lindl. 1830 Java

  62. Bulbophyllum thymophorum J.J.Verm.& A.L.Lamb 1988 Sabah Borneo

  63. *Bulbophyllum torajarum J J Verm. & O'Byrne 2008 - Sulawesi

  64. *Bulbophyllum tristriatum Carr 1930 - Borneo

  65. *Bulbophyllum tubilabium J J Verm & Peter O'Byrne 2003 - Sulawesi

  66. *Bulbophyllum vestigipetalum J J Verm & Lamb 2013 - Borneo

    References W3 Tropicos, Kew Monocot list , IPNI ; *Thirty Two New Species of Bulbophyllum (Orchidaceae)from Sulawesi J.J. VERMEULEN 1 AND P. O’BYRNE Gard. Bulletin Singapore 60 (1): 73-153 2008; Flora of China 25: 404–440. 2009; Genera Orchidacearum Vol 6 Epidendroideae Pt 3 Pridgeon, Cribb Chase & Ramussen 2014;

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