SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Antenniferae 1998

Characterized by the caespitose to repent habit with well developed ramicauls that are usually longer than the leaf. They have a mostly erect, racemose, termianl inflorescence at the base of the sessile or rarely subpetiolate base leaf. Basically the flowers are similar and resupinate with the dorsal sepal free from the laterals and the laterals are connate into a concave to cucullate synsepal. The petals are more or less thickened and entire, narrowly oblong to narrowly linear and are expanded, The three lobed lip has prominent lateral lobes that are either broadly rounded or elongated often markedly so. The lip is variously recurved towards the middle usually markedly so from 90 to 180 degrees. There is generally not a glenion present and the deflexed base of the lip is attached to an abbreviated column foot. The column is semiterete, usually short and has an apical to subapical anther and stigma.

1. Pleurothallis alveolata Luer 1976 Ecuador

2. Pleurothallis aff alveolata Luer 1976 Colombia

3. Pleurothallis antennifera Lindl. 1859 Colombia, Ecuador, Peru and Bolivia

4. Pleurothallis aporosis Luer 1979 Ecuador

5. Pleurothallis bicruris Lindl. 1859 Ecuador

6. Pleurothallis cymbiformis Dod 1984 Dominican Republic

7. Pleurothallis eccentrica Luer & Hirtz 1988 Ecuador

8. Pleurothallis hippocrepica Luer & R.Escobar 1984 Colombia and Ecuador

9. Pleurothallis lenae Luer & Dalström 1996 Ecuador

10. Pleurothallis manicosa Luer & R.Escobar 1996 Colombia

11. Pleurothallis melanosticta Luer 1996 Ecuador

12. Pleurothallis parviflora Luer 1980 Ecuador

13. Pleurothallis penduliflora Kraenzl. 1905 Venezuela, Colombia, Ecuador and Peru

14. Pleurothallis ptychophora Luer & Hirtz 1996 Ecuador

15. Pleurothallis pulvinaris Luer & R.Escobar 1984 Colombia

16. Pleurothallis revoluta (Ruiz & Pav.) Garay 1962 Colombia, Ecuador, Peru, Bolivia, Venezuela and Trinidad

17. Pleurothallis secunda Poepp. & Endl. 1836 Venezuela, Colombia, Ecuador and Peru

18. Pleurothallis suspensa Luer 1982 Surinam, Guyana and Venezuela

19. Pleurothallis taurus Luer 1980 Colombia and Ecuador

20. Pleurothallis tenebrosa Luer 1999 Venezuela

21. Pleurothallis trifurcata Luer & Hirtz 1996 Colombia and Ecuador

22. Pleurothallis veliformis Luer & Dalström 1996 Ecuador