SUBGENUS Acianthera SECTION Brachystachyae Lindley 1859

Characterized by the short to elongate, but seldom prolific ramicauls [similar species with compressed ramicauls are treated in Section sicariae] carry sessile leaves with margins that are sometimes decurrent on the ramicaul. The usually short, fleshy, racemose inflorescence is terminal from the ramicaul and does not arise through an annulus but can arise from the rhizome as in the case of P johnsonii. The long to short, single to many flowered inflorescence have flowers with fleshy, often pubescent sepals whose laterals are connate. The thick, ligulate lip usually with a pair of calli on the disc is more or less broadly unguiculate and often minutely bilobulate at the delicately hinged base.

  1. Pleurothallis aberrans Luer 1978 Costa Rica, Panama, Colombia and Ecuador

  2. Pleurothallis adamantinensis Brade 1939 Brazil

  3. Pleurothallis agathophylla Rchb.f. 1881 Peru Bolivia and Brazil

  4. Pleurothallis alligatorifera Rchb. f. 1865 Brazil

  5. Pleurothallis angustifolia Lindl. 1836 Nicaragua, Honduras, Guatemala, Belize and Mexico

  6. Pleurothallis angustipetala C.Schweinf. 1953 Mexico, Belize and Guatemala

  7. Pleurothallis antennata Garay 1953 Brazil

  8. Pleurothallis aphthosa Lindl.1838 Colombia, Ecuador, Peru, Bolivia, Brazil and Paraguay

  9. Bulbophyllum atrorubens Schltr. 1906 New Caledonia

  10. Pleurothallis aurantiaca Barb.Rodr. 1877 Brazil

  11. Pleurothallis aveniformis Hoehne 1950 Brazil

  12. Pleurothallis bicarinata Lindl. 1939 Brazil

  13. Pleurothallis bicornuta (Barb.Rodr.) Cogn. 1896 Brazil

  14. Pleurothallis bidentata Lindl. 1835 Rio de Janiero Brazil

  15. Pleurothallis bidentula Barb.Rodr. 1881 Brazil

  16. Pleurothallis binotii Regel 1880 Brazil

  17. Pleurothallis boliviana Rchb.f. 1855 Bolivia

  18. Pleurothallis breviflora Lindl. 1841 Mexico

  19. Pleurothallis capanemae Barb.Rodr. 1881 Brazil

  20. Pleurothallis carinata C.Schweinf. 1951 Peru

  21. Pleurothallis chrysantha Lindl. 1859 Mexico

  22. Pleurothallis ciliata Knowles ex Westc.1837 Colombia, Ecuador, Peru and northern Brazil

  23. Bulbophyllum coniferum Ridl. 1909 Malaysia, Java, Sumatra and Borneo

  24. Pleurothallis cremasta Luer & J.Portilla 2001 Ecuador

  25. Pleurothallis cristata (Barb.Rodr.) Cogn. 1896 Brazil

  26. Bulbophyllum cylindraceum Lindl. 1830 Yunnan province of China, Nepal, eastern Himalayas, Sikkim, India, Nepal, western Himalayas, Myanmar and Thailand

  27. Pleurothallis decipiens Ames & C. Schweinf. 1925 Costa Rica, Panama, Ecuador and Venezuela

  28. Pleurothallis fabiobarrosii Borba & Semir 2000 Brazil

  29. Pleurothallis fockei Lindl. 1859 Brazil, Surinam and Venezuela

  30. Pleurothallis fockei Lindl. 1859 Peru

  31. Pleurothallis geminicaulina Ames 1923 Costa Rica, Panama, Colombia and Ecuador

  32. Pleurothallis glanduligera Lindl. 1836 Brazil

  33. Bulbophyllum globiceps Schltr. 1905 New Guinea

  34. Pleurothallis granitica Luer & G.A.Romero in G.A.Romero & G.Carnevali 2000 Venezuela

  35. Pleurothallis guimaraensii Brade 1943 Brazil

  36. Bulbophyllum hastiferum Schltr. 1911 Sulawesi

  37. Pleurothallis heliconioides Luer & R.Vásquez 1980 Bolivia

  38. Pleurothallis henrici Schltr. 1921 Ecuador

  39. Pleurothallis heringeri Hoehne 1946 Brazil

  40. Pleurothallis heteropetala Luer 1976 Ecuador

  41. Pleurothallis hoffmannseggiana Rchb. f. 1849 Brazil

  42. Bulbophyllum holttumii A.D.Hawkes 1956 Thailand and Malaysia

  43. Pleurothallis hondurensis Ames 1924 Belize, Guatemala, Honduras and Nicaragua

  44. Pleurothallis hymenantha Lindl. 1835 Brazil, Cuba

  45. Pleurothallis javieri [Archila] comb novo Pfahl 2013 Guatemala

  46. Pleurothallis johannensis Barb. Rodr. 1881 Brazil

  47. Pleurothallis johnsonii Ames 1923 Mexico, Guatemala, El Salvador, Honduras, Costa Rica and Panama

  48. Bulbophyllum khasyanum Griff. 1851 Chinese Himalayas, eastern Himalayas, Assam, Thailand and Vietnam

  49. Pleurothallis kegelii Rchb.f. 1877 Surinam and Fr Guiana

  50. Pleurothallis klotzschiana Rchb.f. 1850 Brazil

  51. Pleurothallis lamia Luer 1979 Ecuador

  52. Pleurothallis lanceana Lodd. 1831 Costa Rica, Panama, Colombia, Ecuador, Peru, Bolivia and Venezuela as well as Trinidad

  53. Pleurothallis leptotifolia Barb. Rodr. 1877 Brazil

  54. Pleurothallis litensis Luer & Hirtz 2001 Ecuador

  55. Pleurothallis lojae Schltr. 1921 Costa Rica, Panama, Colombia, Ecuador, Peru and Bolivia

  56. Pleurothallis macropoda Barb. Rodr. 1881 Brazil

  57. Pleurothallis macuconensis Barb.Rodr. 1881 Brazil

  58. Pleurothallis madisonii Luer 1979 Ecuador

  59. Pleurothallis magalhaesii Pabst 1975 Brazil

  60. Pleurothallis marumbyana Garay 1953 Brazil

  61. Pleurothallis melachila Barb.Rodr.1881 Brazil

  62. Pleurothallis micrantha Barb.Rodr. 1881 Brazil

  63. Pleurothallis miguelii Schltr. 1913 Dominican Republic

  64. Pleurothallis miqueliana (H.Focke) Lindl. 1859 Ecuador, Peru, Venezuela, Guyana, Fr Guiana, Surinam and Brazil

  65. Pleurothallis modestissima Rchb.f. & Warm. 1881 Brazil

  66. Pleurothallis morilloi Carnevali & I.Ramírez 1993 Venezuela

  67. Pleurothallis nemorosa Barb.Rodr. 1877 Brazil

  68. Pleurothallis obscura A. Rich. & Galeotti 1845 Mexico

  69. Pleurothallis ochreata Lindl. 1835 Brazil

  70. Pleurothallis oligantha Barb.Rodr. 1881 Brazil

  71. Pleurothallis omissa Luer 1999 Venezuela

  72. Pleurothallis foetens Lindl. 1843 Brazil

  73. Pleurothallis panduripetala Barb.Rodr. 1881 Brazil

  74. Pleurothallis papillosa Lindl. 1835 Brazil

  75. Pleurothallis parahybunensis (Barb.Rodr.) Luer 1981 Brazil

  76. Pleurothallis pardipes Rchb. f. 1872 Brazil

  77. Pleurothallis prognatha Luer & R.Escobar 1983 Colombia

  78. Pleurothallis pubescens Lindl. 1836 Dominican Republic, Puerto Rica, Mexico, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, French Guiana, Surinam, Venezuela, Colombia, Ecuador, Peru, Brazil, Paraguay and Argentina

  79. Pleurothallis punicea Luer 1975 Ecuador

  80. Pleurothallis quadricristata Luer & Hirtz 2003

  81. Pleurothallis quadriserrata Luer 1975 Ecuador

  82. Pleurothallis ramosa Barb.Rodr.1881 Brazil

  83. Pleurothallis recurva Lindl. 1841 Ecuador, Bolivia and Brazil

  84. Bulbophyllum repens Griff. 1851Chinese Himalayas, eastern Himalayas, Assam, Myanmar, Thailand, Malaysia, Sumatra and Vietnam

  85. Bulbophyllum rigidum King & Pantl. 1898 eastern Himalayas, Assam India, Nepal and Sikkim

  86. Pleurothallis rodriguesii Cogn. 1896 Brazil

  87. Pleurothallis rostellata Barb.Rodr. 1877 Brazil

  88. Bulbophyllum rubiferum J.J.Sm. 1918 Sarawak, Borneo and Java

  89. Bulbophyllum salaccense Rchb.f. 1857 Malaysia, Borneo, Java and Sumatra

  90. Pleurothallis saundersiana Rchb.f. 1866 Colombia, Bolivia, Peru and southeastern Brazil

  91. Pleurothallis saurocephala Lodd. 1833 Brazil

  92. Pleurothallis serpentula Barb.Rodr.1881 Brazil

  93. Pleurothallis serrulatipetala Barb.Rodr.1881 Brazil

  94. Pleurothallis sonderana Rchb. f. 1849 Brazil

  95. Bulbophyllum sp.

  96. Pleurothallis strupifolia Lindl. 1839 Brazil

  97. Pleurothallis sulcata Porsch 1905 Brazil

  98. Pleurothallis teres Lindl. 1836 Brazil

  99. Pleurothallis tikalensis Correll & C. Schweinf. 1965 Mexico, Belize and Guatemala

  100. Pleurothallis toachica Luer & Dodson 1996 Ecuador

  101. Pleurothallis tokachii Luer 1997 Peru

  102. Pleurothallis translucida Barb.Rodr. 1881 Brazil

  103. Bulbophyllum trifolium Ridl. 1897 penninsular Malaysia and Borneo

  104. Pleurothallis tristis Barb.Rodr. 1882 Brazil

  105. Pleurothallis unguicallosa Ames & C.Schweinf. 1930 Mexico

  106. Pleurothallis variegata Barb.Rodr. 1877 Brazil

  107. Pleurothallis verecunda Schltr. 1922 Guatemala, Nicaragua, Costa Rica, Panama and Ecuador

  108. Pleurothallis violacea A.Rich. & Galeotti 1845 Mexico, Guatemala and El Salvador

  109. Pleurothallis viridis Luer & Hirtz 1996 Ecuador

  110. Pleurothallis wageneriana Klotzsch 1852 Colombia, Ecuador, Peru, Bolivia, Venezuela and Brazil

  111. Pleurothallis wyvern Luer & R.Escobar 1981 Colombia and Ecuador

  112. Bulbophyllum xylophyllum C.S.P.Parish & Rchb.f. 1874 Bhutan, Assam, India, Burma, Thailand and Vietnam

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