SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Macrophyllae-Racemosae [Lindl] Luer 1986

Characterized by the caespitose to rarely repent habit with well developed ramicauls that are mostly longer than the sessile to petiolate base leaf. It blooms with a single to racemose, terminal, generally pendant inflorescence arising from the base of the sessile leaf or laterally from a short distance below the abscission layer. The flowers are non-resupinate and are basically similar with a free dorsal sepal and the laterals are connate to form a concave to cucullate synsepal. The petals are oblong to ovate, more or less thickened, and are entire and denticulate. The three lobed lip has basal lobes that flank or encircle the column and have a pair of calli on the disc. The glenion is not usually developed. The base of the lip is attached to a thickened, abbreviated column foot and the semiterete column is generally short and carries an apical to sub-apical anther and stigma. SUBSECTION TYPE Species

Pleurothallis magnifica Luer & R.Escobar 1984

1. Pleurothallis amplectens Luer 1980 Ecuador

2. Pleurothallis archidonae Lindl. 1859 Ecuador

3. Pleurothallis archidonopsis Luer & Hirtz 1999 Ecuador

4. Pleurothallis ariana-dayanae Vélez-Abarca, M.M.Jiménez & D.Gut.del Pozo 2022 Ecuador

5. Pleurothallis bicornis Lindl. 1859 Venezuela, Colombia, Ecuador and Peru

6. Pleurothallis cachabensis Luer & Hirtz 1988 Ecuador

7. Pleurothallis cajamarcae Schltr. 1921 Peru

8. Pleurothallis calvariola Luer & R.Escobar 1981 Colombia and Ecuador

9. Pleurothallis capitonis Luer & R.Escobar 1996 Colombia and Ecuador

10. Pleurothallis caucensis Mark Wilson 2017 Colombia

11. Pleurothallis chuscalica Luer 1999 Colombia

12. Pleurothallis colossus Kraenzl. ex Kerch. 1894 Costa Rica, Panama, Colombia and Ecuador

13. Pleurothallis cornualis Luer 1976 Colombia and Ecuador

14. Pleurothallis cotyligera Luer & R. Escobar 1996 Colombia

15. Pleurothallis crescentilabia Ames 1923 Costa Rica and Panama

16. Pleurothallis dorrii Luer 1997 Venezuela

17. Pleurothallis elvirana Carnevali & I.Ramírez 1993 Venezuela

18. Pleurothallis hartwegii Lindley 1842 Colombia and Ecuador

19. Pleurothallis hemisphaerica Luer & R.Escobar 1981 Colombia

20. Pleurothallis henniae Luer & Dalström 1996 Ecuador

21. Pleurothallis imber-florum Luer & R.Escobar 1984 Colombia

22. Pleurothallis inflata Rolfe 1894 Colombia, Venezuela and Ecuador

23. Pleurothallis jaculifera Luer & R.Escobar 1998 Colombia

24. Pleurothallis lamellaris Lindl. 1859 Colombia, Ecuador, Peru and Bolivia

25. Pleurothallis lindenii Lindl. 1843 Venezuela, Colombia, Ecuador and Peru

26. ! Pleurothallis magnifica Luer & R.Escobar 1984 Colombia

27. Pleurothallis megalotis Luer & Hirtz 1988 Ecuador

28. Pleurothallis mundula Luer & R.Escobar 1983 Colombia

29. Pleurothallis nutans Schltr. 1924 Colombia

30. Pleurothallis orthostachys Luer & R.Escobar 1984 Colombia and Ecuador

31. Pleurothallis osculator [Luer & Toscano] in ed. Brazil

32. Pleurothallis pelex Luer 1979 Ecuador

33. Pleurothallis phratria Luer & Hirtz 1996 Colombia and Ecuador

34. Pleurothallis pulcherrima Luer 1999 Ecuador

35. Pleurothallis queremalensis Rinc.-Useche, Rodr.-Mart. & Karremans 2017 Colombia

36. Pleurothallis serpens Luer & R.Escobar 1983 Colombia

37. Pleurothallis steyermarkii C.Schweinf. 1951 Venezuela

38. Pleurothallis strobilifera F.Lehm. & Kraenzl. 1899 Colombia and Venezuela

39. Pleurothallis subreniformis Schltr.1921 Ecuador

40. Pleurothallis tiarata Luer & Hirtz 2004 Ecuador

41. Pleurothallis torrana Luer 1996 Colombia

42. Pleurothallis uvifera Luer & R.Escobar 1983 Colombia