SUBGENUS Aenigma Luer 1986 Characterized by the shortly repent, ascending rhizome with more or less fasciculated, short ramicauls witha successively flowered inflorescence arising through an annulus. There are two sections divided over having a long-spiculate or a glabrous ovary.

Divided into two sections

SUBGENUS Aenigma SECTION Aenigma Luer 1986

Characterized by the long-spiculate ovary and the semiconnate lateral sepals and the column shorter than the lip. One species has vestigal petals.

1. Pleurothallis dalstroemii Luer 1984 Ecuador

2. Pleurothallis hystricosa Luer 1994 Colombia

3. Pleurothallis ibex Luer 1979 Ecuador

4. Pleurothallis lappacea Luer 2000 Ecuador

5. Pleurothallis panica Luer & Dalström 1996 Ecuador

6. Pleurothallis pentamytera Luer 1994 Ecuador

7. Pleurothallis pogonion Luer 1994 Ecuador

8. Pleurothallis schizopogon Luer 1979 Ecuador and Northern Peru

   Pleurothallis sp.

9. Pleurothallis trimytera Luer & R.Escobar 1983 Colombia, Ecuador and ?Bolivia