SUBGENUS Ancipitia SECTION Ancipitia Luer 1986

Characterized by the sharply laterally compressed, ancipitous ramicauls except in one species that is 4 angled, the cordate and sessile leaves and the long pedicellate single flowers produced in a fasscile at the base of the leaf without an annulus. The sepals are more or less membraneous with the laterals connate. The petals are thickened towards the apex and the lips are diversely modified, often into bizarre shapes resembling insect and animal horns and ears. The morphology of the some parts of the flowers is quite variable among the species but the ramicauls, leaves, peduncles, sepals and petasl are quite consistently the same.

1. Pleurothallis anceps Luer 1979 Colombia and Ecuador

2. Pleurothallis anthrax Luer & R. Escobar 1981 Colombia and Venezuela

3. Pleurothallis caprina Luer & R.Escobar 1981 Colombia

4. Pleurothallis condorensis Luer & Hirtz 1989 Ecuador

5. Pleurothallis crocodiliceps Rchb. f. 1855 Costa Rica, Panama, Colombia, Ecuador, Peru and Venezuela

6. Pleurothallis cypelligera Luer & Hirtz 2002 Ecuador

7. Pleurothallis dunstervillei Foldats 1968 Ecuador, Colombia, Peru and Venezuela

8. Pleurothallis eumecocaulon Schltr.1923 Costa Rica and Panama

9. Pleurothallis gratiosa Rchb. f. 1854 Venezuela

10. Pleurothallis inornata Luer & Hirtz 1989 Ecuador

11. Pleurothallis instar Luer 1977 Panama

12. Pleurothallis jimii Luer 2004 Colombia

13. Pleurothallis niveoglobula Luer 1975 Ecuador

14. Pleurothallis odobeniceps Luer 1989 Colombia

15. Pleurothallis onagriceps Luer & Hirtz 1989 Ecuador

16. Pleurothallis praecipua Luer 1980 Ecuador

17. Pleurothallis solium Luer 1982 Ecuador

18. Pleurothallis viduata Luer 1981 Ecuador

19. Pleurothallis vorator Luer & R. Vásquez 1980 Ecuador and Bolivia

    SUBGENUS Ancipitia SECTION Tetragona Luer 1986

    Characterized by the 4 sided, compressed ramicaul

20. Pleurothallis tetragona Luer & Escobar 1981 Colombia