SECTION Ploiarium Schlechter 1925

Synonyms SECTION Loxosepalum Schlechter

TYPE: Bulbophyllum coriophorum Ridl. 1886

Characterized by medium to large sized plants with 2 leaved pseudobulbs and blooms on a many flowered inflorescence carrying flowers with the lateral sepals united into an elliptic to semi-circular synsepal that is bifid or bidentate apically, keeled on the reverse which extends into the ovary and the flower has short stellida. The anther is with or without a rounded protrusion that is shorter than the anterior margin.

There are about 75 species in this section confined to Madagascar occuring in humid lowland and montane forests

Entries below with an asterix are listed in publications by J J Vermeullen or G A Fischer 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 abbreviatum Schlechter 1924 Madgascar

2. Bulbophyllum aggregatum Bosser 1965 Madagascar

3. Bulbophyllum alleizettei Schltr. 1922 Madagascar

4. Bulbophyllum ambatoavense Bosser 2004 Madagascar

5. Bulbophyllum ankaizinense (Jum. & H. Perrier) Schltr. 1924 Madagascar

6. Bulbophyllum ankaratranum Schltr. 1924 Madagascar

7. Bulbophyllum auriflorum H.Perrier 1937 Madagascar

8. Bulbophyllum baronii Ridl. 1885 Madagascar

9. Bulbophyllum brachyphyton Schltr. 1918 Madagascar

10. Bulbophyllum callosum Bosser 1965 Madagascar

11. Bulbophyllum clavatum Thouars 1822 Mascarenes and Reunion

12. Bulbophyllum coccinatum H.Perrier 1938 Madagascar

13. Bulbophyllum comorianum H. Perrier 1938 Comoros

14. Bulbophyllum conicum Thouars 1822 Reunion

15. *!Bulbophyllum coriophorum Ridl. 1886 Madagascar and the Comoros Islands

16. Bulbophyllum curvifolium Schltr. 1916 Madagascar

17. Bulbophyllum cyclanthum Schltr. 1916 Madagascar

18. Bulbophyllum decaryanum H. Perrier 1937 Madagascar

19. Bulbophyllum divaricatum H.Perrier 1937 Madagascar

20. Bulbophyllum ferkoanum Schltr. 1918 Madagascar

21. Bulbophyllum florulentum Schltr. 1924 Madagascar

22. Bulbophyllum henrici Schlechter 1925 Madagascar

23. Bulbophyllum hirsutiusculum H.Perrier 1937 Madagascar

24. Bulbophyllum hovarum Schlechter 1924 Madagascar

25. Bulbophyllum humbertii Schltr. 1922 Madagascar

26. Bulbophyllum incurvum Thouars 1822 Madagascar, Mauritius, Rodrigues and Reunion

27. Bulbophyllum insolitum Bosser 1971 Madagascar

28. Bulbophyllum jackyi G.A.Fisch., Sieder & P.J.Cribb 2007 Madagascar

29. Bulbophyllum labatii Bosser 2004 Madagascar

30. Bulbophyllum leandrianum H. Perrier 1937 Madagascar

31. Bulbophyllum lemuraeoides H.Perrier 1937 Madagascar

32. Bulbophyllum leonii Kraenzl. 1900 Madagascar

33. Bulbophyllum leptochlamys Schltr. 1924 Madagascar

34. Bulbophyllum lineariligulatum Schltr. 1924 Madagascar

35. Bulbophyllum lyperostachyum Schltr. 1924 Madagascar

36. Bulbophyllum marojejiense H.Perrier 1951 Madagascar

37. Bulbophyllum masoalanum Schltr. 1916 Madagascar

38. Bulbophyllum melleum H.Perrier 1937 Madagascar

39. Bulbophyllum minax Schltr. 1924 Madagacar

40. Bulbophyllum moramanganum Schltr 1922 Madagascar

41. Bulbophyllum multiflorum Ridl. 1885 Madagascar

42. Bulbophyllum myrmecochilum Schltr 1925 Madagascar

43. Bulbophyllum namoronae Bosser 1971 Madagascar

44. Bulbophyllum nitens Jum. & H.Perrier 1912 Madagascar

45. Bulbophyllum ophiuchus Ridl. 1912 Madagascar

46. Bulbophyllum oreodorum Schltr. 1924 Madagascar

47. Bulbophyllum paleiferum Schltr. 1924 Madagascar

48. Bulbophyllum perseverans Hermans 2007 Madagascar

49. Bulbophyllum peyrotii Bosser 1965 Madagascar

50. Bulbophyllum platypodum H.Perrier 1937 Madagascar

51. Bulbophyllum pleiopterum Schltr. 1912 Madagascar

52. Bulbophyllum prismaticum Thouars 1822 Reunion

53. Bulbophyllum protectum H.Perrier 1937 Madagascar

54. Bulbophyllum quadrialatum H.Perrier 1939 Madagascar

55. Bulbophyllum ranomafanae Bosser & P.J. Cribb 2001 Madagascar

56. Bulbophyllum reifii Sieder & Kiehn 2009 Madagascar

57. Bulbophyllum rubiginosum Schltr. 1925 Madagascar

58. Bulbophyllum rutenbergianum Schltr. 1924 Madagascar

59. Bulbophyllum sarcorhachis Schltr. 1918 Madagascar

60. Bulbophyllum sphaerobulbum H.Perrier 1937 Madagascar

61. Bulbophyllum subclavatum Schltr. 1925 Madagascar

62. Bulbophyllum subcrenulatum Schltr.1925 Madagascar

63. Bulbophyllum thompsonii Ridley 1885 Madagascar

64. Bulbophyllum toilliezae Bosser 1965 Madagascar

65. Bulbophyllum turkii Bosser & P.J.Cribb 2001 Madagascar

66. Bulbophyllum vakonae Hermans 2007 Madagascar

67. Bulbophyllum ventriosum H.Perrier 1937 Madagascar

68. Bulbophyllum vulcanorum H.Perrier 1938 Madagascar

69. Bulbophyllum xanthobulbum Schltr. 1918 Madagascar