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 adamantinensis Brade 1939 Brazil

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

  3. Pleurothallis alligatorifera Rchb. f. 1865 Brazil

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

  5. Pleurothallis angustisepala Ames & Correll 1942 Mexico, Belize and Guatemala

  6. Pleurothallis antennata Garay 1953 Brazil

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

  8. Pleurothallis aurantiaca Barb.Rodr. 1877 Brazil

  9. Pleurothallis aveniformis Hoehne 1950 Brazil

  10. Pleurothallis bicarinata Lindl. 1939 Brazil

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

  12. Pleurothallis bidentata Lindl. 1835 Rio de Janiero Brazil

  13. Pleurothallis bidentula Barb.Rodr. 1881 Brazil

  14. Pleurothallis binotii Regel 1880 Brazil

  15. Pleurothallis boliviana Rchb.f. 1855 Bolivia

  16. Pleurothallis breedlovei [Soto Arenas, Solano and Salazar] in ed Mexico

  17. Pleurothallis breviflora Lindl. 1841 Mexico

  18. Pleurothallis calopedilon Toscano & Luer] in ed. Brazil

  19. Pleurothallis capanemae Barb.Rodr. 1881 Brazil

  20. Pleurothallis carinata C.Schweinf. 1951 Peru

  21. Pleurothallis catujiensis [Campacci & Silva] in ed. Brazil

  22. Pleurothallis cephalopodiglossa [Toscanp & Luer] in ed. Brazil

  23. Pleurothallis chrysantha Lindl. 1859 Mexico

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

  25. Pleurothallis cornejoi [Luer] in ed. Ecuador

  26. Pleurothallis cremasta Luer & J.Portilla 2001 Ecuador

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

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

  29. Pleurothallis dueterodubbeldamii [Luer & Sijm] in ed Colombia

  30. Pleurothallis ericae [Luer] in ed.

  31. Pleurothallis fabiobarrosii Borba & Semir 2000 Brazil

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

  33. Pleurothallis foetens Lindl. 1843 Brazil

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

  35. Pleurothallis glanduligera Lindl. 1836 Brazil

  36. Pleurothallis gracilisepala Brade 1951 Brazil

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

  38. Pleurothallis guimaraensii Brade 1943 Brazil

  39. Pleurothallis heliconioides Luer & R.Vásquez 1980 Bolivia

  40. Pleurothallis henrici Schltr. 1921 Ecuador

  41. Pleurothallis heringeri Hoehne 1946 Brazil

  42. Pleurothallis heteropetala Luer 1976 Ecuador

  43. Pleurothallis hoffmannseggiana Rchb. f. 1849 Brazil

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

  45. Pleurothallis hymenantha Lindl. 1835 Brazil, Cuba

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

  47. Pleurothallis johannensis Barb. Rodr. 1881 Brazil

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

  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 moronae Luer & Hirtz 1996 Ecuador

  68. Pleurothallis nemorosa Barb.Rodr. 1877 Brazil

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

  70. Pleurothallis ochreata Lindl. 1835 Brazil

  71. Pleurothallis ofella Luer 1982 Ecuador

  72. Pleurothallis oligantha Barb.Rodr. 1881 Brazil

  73. Pleurothallis omissa Luer 1999 Venezuela

  74. Pleurothallis panduripetala Barb.Rodr. 1881 Brazil

  75. Pleurothallis papillosa Lindl. 1835 Brazil

  76. Pleurothallis pardipes Rchb. f. 1872 Brazil

  77. Pleurothallis pollardiana Solano in ed. Mexico

  78. Pleurothallis prognatha Luer & R.Escobar 1983 Colombia

  79. 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

  80. Pleurothallis punicea Luer 1975 Ecuador

  81. Pleurothallis pustulata [Zambrano & Solano] in ed. Ecuador

  82. Pleurothallis quadricristata Luer & Hirtz 2003

  83. Pleurothallis quadriserrata Luer 1975 Ecuador

  84. Pleurothallis ramosa Barb.Rodr.1881 Brazil

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

  86. Pleurothallis rodriguesii Cogn. 1896 Brazil

  87. Pleurothallis rostellata Barb.Rodr. 1877 Brazil

  88. Pleurothallis saraca-taquerensis [Campacci & Silva] in ed. Brazil

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

  90. Pleurothallis saurocephala Lodd. 1833 Brazil

  91. Pleurothallis serpentula Barb.Rodr.1881 Brazil

  92. Pleurothallis serrulatipetala Barb.Rodr.1881 Brazil

  93. Pleurothallis simpliciflora Dod 1977 Dominican Republic

  94. Pleurothallis sonderana Rchb. f. 1849 Brazil

  95. Pleurothallis sotoanum[Solano} In ed. Vera Cruz, Oaxaca and Chiapas states of Mexico

  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. Pleurothallis tristis Barb.Rodr. 1882 Brazil

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

  105. Pleurothallis variegata Barb.Rodr. 1877 Brazil

  106. Pleurothallis venulosa Luer & R.Vásquez 2004 Bolivia

  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 wilsonii Lindl. 1858

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

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