SUBGENUS Acuminatia SECTION Acuminatae Luer 1986
Characterized by the ramicaul longer or as long as the petiolate to subpetiolate base leaf that is never sessile. The racemose inflorescence arises laterally either singly and successively or several simultaneously in a fascile arsiing from an annulus shortly below the abscission layer. The flowers arise mostly simultaneously in short to elongate racemose inflorescence and have the three sepals free, similar and pubescent within, the broadly obtuse to rounded apically petals are small and entire as well as the oblong lip is generally shallowly concave centrally between parellel calli or erect margins below the middle. The lip is also variously callous or lobedThe column is slender and carries a ventral anther and stigma with a pair of pollina that are attached to a single, small viscidium. The column foot is well developed and extends beyond the end of the ovary and is slender or narrowly longitudinally winged. The lip is delicately hinged to the lip.
TYPE species for the SECTION
!Pleurothallis regalis Luer 1979
- Pleurothallis acuminata (Kunth) Lindl. 1842 Colombia, Venezuela, Ecuador, Peru and Bolivia
- Pleurothallis anderssonii Luer 1996 Ecuador
- Pleurothallis ariasii Luer & Hirtz 1997 Peru
- Pleurothallis aristulata Lindl.1859 Brazil
- Pleurothallis asperilinguis Rchb. f. & Warsz. 1854 Venezuela, Colombia, Ecuador and Peru
- Pleurothallis attenuata Rolfe 1909 Brazil
- Pleurothallis bevilacquana Carnevali & I.Ramírez 2000 vENEZUELA
- Pleurothallis bocainensis Porto & Brade 1938 publ. 1940 Brazil
- Pleurothallis candida Luer & Hirtz 1999 Peru
- Pleurothallis carvalhoi Luer & Toscano 2002 Brazil
- Pleurothallis concinna Luer & R.Vásquez 1999 Bolivia
- Pleurothallis convergens R.C.J.Gerard 1899 Brazil
- Pleurothallis coripatae Luer & R.Vásquez 1980 Bolivia
- Pleurothallis crebrifolia (Barb.Rodr.) Cogn. 1896 Brazil
- Pleurothallis depauperata Cogn. 1896 Brazil
- Pleurothallis dimidia Luer 1999 Colombia, Venezuela, Peru and Bolivia
- Pleurothallis dolichopus Schlechter 1912 Mexico, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia and Ecuador
- Pleurothallis dryadum Schltr. 1922 Brazil
- Pleurothallis eugenii Pabst 1956 Brazil
- Pleurothallis exigua Cogn. 1896 Guyana, Brazil
- Pleurothallis gert-hatschbachii Hoehne 1950 Brazil
- Pleurothallis graveolens Pabst 1975 Brazil
- Pleurothallis heterophylla (Barb.Rodr.) Cogn.1896 Brazil
- Pleurothallis jesupiorum Luer & Hirtz 1996 Ecuador
- Pleurothallis lagarophyta Luer 1999 Peru
- Pleurothallis linearifolia Cogn. 1896 Brazil
- Pleurothallis maguirei Luer 1999 Venezuela and Guyana
- Pleurothallis malmeana Dutra ex Pabst 1959 Brazil
- Pleurothallis mediocarinata C.Schweinf. 1970 Peru and Bolivia
- Pleurothallis meridana Rchb.f. 1850 Colombia and Venezuela
- Pleurothallis ourobranquensis [Campacci & Menini] in ed. Brazil
Pleurothallis pabstii Garay 1953 Brazil
- Pleurothallis petersiana Schltr. 1918 Brazil
- Pleurothallis pubipetala Hoehne 1930 Brazil
- Pleurothallis puttemansii Hoehne 1929 Brazil
- Pleurothallis radialis Porto & Brade 1937 Brazil
- Pleurothallis ramulosa Lindl. 1859 Ecuador, Colombia, Venezuela
- !Pleurothallis regalis Luer 1979 Ecuador
- Pleurothallis rubens Lindl. 1836 Ecuador, Peru, Bolivia and Brazil
- Pleurothallis scariosa (Lex.) Lindl. 1842 Mexico
- Pleurothallis schlimii Luer 1999 Colombia
- Pleurothallis sclerophylla Lindl. 1835-6 Mexico, Guatemala, El Salvador, Costa Rica, Colombia, Ecuador, Bolivia, Peru, Venezuela, Guyana, French Guiana, Surinam and Brazil
- Pleurothallis simpliciglossa Loefgr. 1918 Brazil
- Pleurothallis soratana Rchb.f. 1881 Bolivia
- Pleurothallis sororcula Schltr. 1922 Brazil
- Pleurothallis spannageliana Hoehne 1920 Brazil
- Pleurothallis spathilabia Schltr. 1924 Colombia & Ecuador
- Pleurothallis spathulifolia C.Schweinf. 1942 Peru
- Pleurothallis spathuliformis Luer & R.Vásquez 1999 Bolivia
- Pleurothallis stenophylla F.Lehm. & Kraenzl. 1899 Colombia, Ecuador and Bolivia
- Pleurothallis unduavica Luer & R.Vásquez 1980 Bolivia
- Pleurothallis vasquezii Luer 1981 Bolivia
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