Characterized by the single flowered inflorescence with the peduncle hidden within a spathe, the usually short pedicels, the entire, fringed to pubescent petals that are not sigmoid in outline and a thick, obtuse, oblong to transverse lip and a shorter, broader column with an apical anther and stigma that is almost always bilobed. This subsection and amphygiae are not distinctly separated in various borderline species and for this reason they later were separated by Luer into the genus Acronia [2005] with three sections, Acronia, Amphygia and Macrophyllae-fasciculatae.
TYPE Species for the SECTION
- Pleurothallis acestrophylla Luer 1975 Ecuador and Peru
- Pleurothallis acutilabia Luer 1999 Colombia
- Pleurothallis adeleae Luer 1981 Ecuador and Ecuador
- Pleurothallis adelphe Luer & Hirtz 1996 Ecuador
- Pleurothallis adonis Luer 1976 Colombia and Ecuador
- Pleurothallis adventurae Karremans & Bogarín 2011 Costa Rica
- Pleurothallis aguirrei Luer & R.Escobar 2003 Colombia
- Pleurothallis alopex Luer 1976 Bolivia and Paraguay
- Pleurothallis altimonile Luer & R.Escobar 1981 Colombia
- Pleurothallis ambyx Luer & R.Escobar 1981 Colombia and Ecuador
- Pleurothallis andreaskayi Mark Wilson & B.T. Larsen 2022 Colombia, Ecuador
- Pleurothallis andreettae (Luer) J.M.H.Shaw 2014 Ecuador
- Pleurothallis angusta Ames & C.Schweinf. 1925 Costa Rica and Panama
- Pleurothallis angustissima (Luer & Hirtz) J.M.H.Shaw 2014 Ecuador
- Pleurothallis anthurioides A.Doucette 2016 Panama
- Pleurothallis apopsis Luer 1979 Ecuador
- Pleurothallis applanata Luer & Dalström 1996 Ecuador
- Pleurothallis arctata Luer 1997 Peru
- Pleurothallis ascera Luer & R. Escobar 1996 Costa Rica, Panama and Colombia
- Pleurothallis asplundii Luer 1996 Ecuador
- Pleurothallis aurita Schweinf 1940 Costa Rica
- Pleurothallis austinrumleyi K.W.Holcomb 2024 Colombia
- Pleurothallis baezensis (Luer & Hirtz) J.M.H.Shaw 2014 Ecuador
- Pleurothallis barrowii Schuit. 2018 Ecuador?
- Pleurothallis batrachus Luer & Hirtz 1996 Ecuador
- Pleurothallis baudoensis Luer & R.Escobar 1998 Colombia
- Pleurothallis belocardia Schltr. 1924 Colombia
- Pleurothallis bilobulata M.M.Jiménez, Ocupa & Vélez-Abarca 2021 Ecuador
- Pleurothallis bitumida Luer 1996 Costa Rica
- Pleurothallis bivalvis Lindl. 1846 Ecuador, Colombia and Venezuela
- Pleurothallis blepharopetala Schltr.1915 Ecuador
- Pleurothallis bogarinii Pupulin & J.D. Zúñiga 2007 Costa Rica
- Pleurothallis bothros Luer 1996 Costa Rica
- Pleurothallis bovilingua Luer & R.Escobar 1998 Colombia
- Pleurothallis braidiana [Luer] in ed. without location
Pleurothallis brinkmaniana K.W. Holcomb 2024 Colombia
- Pleurothallis bucculenta Luer 1976 Ecuador
- Pleurothallis bulbosa [Luer & Escobar] Pfahl 2012 Colombia
- Pleurothallis calamifolia Luer & R.Escobar 1996 Colombia
- !Pleurothallis calceolaris Rchb.f. 1876 Colombia
- Pleurothallis callifera C.Schweinf. 1951 Venezuela
- Pleurothallis calogramma Luer 2003 Colombia
- Pleurothallis callosa Diaz & Pupulin 2021 Costa Rica
- Pleurothallis calolalax Luer & R.Escobar 1998 Colombia
- Pleurothallis canaligera Rchb.f 1877 Colombia, Ecuador and Peru
- Pleurothallis canidentis Luer & R. Escobar 1998 Costa Rica, Panama and Colombia
- Pleurothallis cardiochila L.O. Williams 1942 Costa Rica and Panama
- Pleurothallis cardiocrepis Rchb.f.1888 Peru?
- Pleurothallis cardiophylax Rchb.f. 1888 Colombia, Ecuador and Peru
- Pleurothallis cardiostola Rchb. f. 1854 Colombia, Venezuela, Peru, Bolivia and Ecuador
- Pleurothallis cardiothallis Rchb.f 1857 Mexico, Belize, Costa Rica, Nicaragua, Colombia and Ecuador
- Pleurothallis carduela (Luer) J.M.H.Shaw 2014 Ecuador
- Pleurothallis carmensotoana Mark Wilson & B.T. Larsen 2022 Ecuador, Peru
- Pleurothallis carnosa Braid 1924 Colombia
- Pleurothallis carrenoi Carnevali & I.Ramírez 1987 Venezuela
- Pleurothallis cassidata Luer & R.Escobar 1998 Colombia
- Pleurothallis castanea Mark Wilson, G.Merino & J.D.Werner 2016 Ecuador
- Pleurothallis caucensis Mark Wilson 2017 Colombia
- Pleurothallis cauda-hirundinis Luer & J.Portilla 2002 Ecuador
- Pleurothallis cedrinorum Luer & Dalström 1996 Ecuador
- Pleurothallis celsia Gal.-Tar. & J.S.Moreno 2023 Colombia
- Pleurothallis chama Luer 1977 Ecuador
- Pleurothallis chaparensis (Luer & R.Vásquez) J.M.H.Shaw 2014 Bolivia
- Pleurothallis chavezii Luer 1996 Costa Rica
- Pleurothallis chicalensis M.M.Jiménez & Baquero 2018 Ecuador
- Pleurothallis cobriformis L.O.Williams 1940 Panama
- Pleurothallis complanata Luer & Hirtz 1996 Ecuador
- Pleurothallis compressa Luer 1996 Costa Rica
- Pleurothallis conformalis Luer & Dalström 2003 Ecuador
- Pleurothallis conicostigma Luer 1975 Ecuador
- Pleurothallis constricta Luer & R.Escobar R. 1998 Colombia
- Pleurothallis convexa Luer & Hirtz 1996 Ecuador
- Pleurothallis cordata (Ruiz & Pav.) Lindl. 1830 Colombia, Venezuela, Ecuador, Peru and Bolivia
- Pleurothallis cordifolia Rchb.f. & Wagener 1854 Costa Rica, Panama, Venzuela, Colombia and Ecuador
- Pleurothallis coriacardia Rchb. f. 1854 Ecuador and Peru
- Pleurothallis correllii Luer 1976 Guatemala, El Salvador and Mexico
- Pleurothallis corysta Luer 1978 Ecuador
- Pleurothallis crateriformis C.Schweinf. 1951 Ecuador and Peru
- Pleurothallis crossota Luer & Dalström 1996 Ecuador
- Pleurothallis crucifera Luer & Hirtz 1996 Ecuador
- Pleurothallis culpameae (Luer) J.M.H.Shaw 2014 Ecuador
- Pleurothallis cuzcoensis [Luer] ined. Peru
- Pleurothallis cutucuensis Luer 1977 Ecuador
- Pleurothallis cyanea Luer & R. Escobar 1984 Colombia
- Pleurothallis dariensis (Kolan. & Szlach.) Bogarín 2014 Panama
- Pleurothallis deflexa Luer 1975 Ecuador
- Pleurothallis dejavu Luer & Hirtz 1988Ecuador
- Pleurothallis depressa Luer & R. Escobar 1996 Colombia
- Pleurothallis dewildei Luer & R.Escobar 1998 Colombia
- Pleurothallis diabolica Luer & R. Escobar 1981 Colombia Ecuador
- Pleurothallis diazii (Luer & Endara) J.M.H.Shaw 2014 Peru
- Pleurothallis dibolia Luer 1975 Ecuador
- Pleurothallis dilemma Luer 2001 Ecuador
- Pleurothallis discoidea Lindl. 1835 Trinidad, Venezuela, Surinam, French Guiana, Ecuador and Peru
- Pleurothallis dorotheae Luer 1980 Costa Rica
- Pleurothallis dracuncula (Luer & Hirtz) J.M.H.Shaw 2014 Ecuador
- Pleurothallis drewii Luer 2000
Ecuador
- Pleurothallis dubbeldamii Luer 2003 No Collection Data
- Pleurothallis elliottii K.W.Holcomb 2024 eCUADOR
- Pleurothallis ensata Luer 1975 Ecuador
- Pleurothallis epiglottis Luerb 1980 Ecuador
- Pleurothallis erythrium Luer 1978 Ecuador
- Pleurothallis escobarii (Luer) J.M.H.Shaw 2014 Colombia
- Pleurothallis excavata Schltr. 1923 Costa Rica and Panama
- Pleurothallis fantastica Ames 1936 Costa Rica
- Pleurothallis folsomii (Luer & Endara) J.M.H.Shaw 2014 Panama
- Pleurothallis fonnegrae (Luer & Endara) J.M.H.Shaw 2014 Colombia
- Pleurothallis fossulata Luer & R.Escobar 1998 Colombia and Ecuador
- Pleurothallis franciana Sierra-Aziz 2023 Colombia
- Pleurothallis galerita Luer 1981 Ecuador
- Pleurothallis ganymedes Luer & R.Escobar 1981 Colombia
- Pleurothallis gargantua Luer 1996 Ecuador
- Pleurothallis geographica Luer 1977 Ecuador
- Pleurothallis gigiportillae A.Doucette & J.Portilla 2016 Ecuador
- Pleurothallis giraffa Luer 1979 Ecuador
- Pleurothallis giraldoi Luer 1999 Colombia
- Pleurothallis glabra Luer & R.Escobar 1996 Colombia
- Pleurothallis globosa Luer & R.Escobar 1996 Colombia
- Pleurothallis gonzaleziorum Pupulin, Diaz & Pridgeon 2021 Costa Rica
- Pleurothallis gonzaloi J.S. Moreno, Rinc.-González &
Gal.-Tar 2022 Colombia
- Pleurothallis grandiflora Lindl. 1835 Venezuela, Colombia, Ecuador, Peru and Bolivia
- Pleurothallis grandilingua Pupuplin, M Diaz and Pridgeon 2021 Costa Rica
- Pleurothallis grobleri (Luer & Hirtz) J.M.H.Shaw 2014 Ecuador
- Pleurothallis hemileuca Luer 1982 Panama
- Pleurothallis hoeijeri Luer & Hirtz 1988 Ecuador
- Pleurothallis homalantha Schltr.1923 El Salvador, Honduras, Nicaragua, Costa Rica, Panama and Brazil
- Pleurothallis imperialis Luer 1975 Ecuador and Colombia
- Pleurothallis index Luer 1980 Ecuador and Colombia
- Pleurothallis isthmica Luer 1977 Honduras, Costa Rica and Panama
- Pleurothallis jaramilloi Luer 2001 Colombia
- Pleurothallis jennydandreae K.W. Holcomb 2024 Colombia
- Pleurothallis josefinae K.W.Holcomb 2024 Ecuador
- Pleurothallis jupiter Luer 1975 Ecuador
- Pleurothallis kashi-menkakarai Mashendo-Jimbicti, Vélez-Abarca & M.M.Jiménez 2023 Ecuador
- Pleurothallis killipii Garay 1956 Colombia
- Pleurothallis lacera Luer 1975 Colombia and Ecuador
- Pleurothallis lanigera Luer & Hirtz 1988 Ecuador
- Pleurothallis lapoi M.M.Jiménez & Vélez-Abarca 2023 Ecuador
- Pleurothallis latipetala Garay 1952 Colombia
- Pleurothallis lemniscifolia Luer 1975 Ecuador
- Pleurothallis leucantha Schltr. 1912 Guatemala
- Pleurothallis lilijae Foldats 1968 Venezuela, Colombia and Ecuador
- Pleurothallis linguifera Lindl. 1859 Colombia, Ecuador, Peru, Bolivia and Venezuela
- Pleurothallis llanganatensis (Luer & Hirtz) J.M.H.Shaw 2014
- Pleurothallis longipetala Bogarin & Belfort 2021 Costa Rica
- Pleurothallis loreae Carnevali & I.Ramírez 2003 Venezuela
- Pleurothallis luna-crescens Pupulin, J.Aguilar & Mel.Fernández 2017 Costa Rica
- Pleurothallis lunaris Luer & R.Escobar 1981 Colombia
- Pleurothallis lynniana [Luer] Comb. novo. Pfahl 2012 Ecuador
- Pleurothallis macra Lindl. 1859 Ecuador and Peru
- Pleurothallis macrocardia Rchb.f. 1855 Colombia, Ecuador and Bolivia
- Pleurothallis maduroi Luer 1997 Panama
- Pleurothallis magnipetala C.Schweinf. 1951 Peru
- Pleurothallis mahechae J.S. Moreno, Sierra-Ariza & L.C. Pina 2022 Colombia
- Pleurothallis marioandresavilae Vélez-Abarca & M.M.Jiménez 2023 Ecuador, Peru
- Pleurothallis marioi Zambrano & Solano 2017 Ecuador
- Pleurothallis marioportillae A.Doucette, H.Medina & J.Portilla 2025 Ecuador
- Pleurothallis marthae Luer & R. Escobar 1996 Colombia
- Pleurothallis mastodon Luer & Hirtz 1996 Ecuador
- Pleurothallis matudana C. Schweinf. 1938 Mexico, Guatemala, Honduras, Nicaragua, Ecuador and Bolivia
- Pleurothallis megaglossa Luer & Dalström 1996 Ecuador
- Pleurothallis megalorhina Luer & R.Escobar 1996 Colombia
- Pleurothallis mesopotamica Bogarin & Belfort 2021 Costa Rica
- Pleurothallis microcardia Rchb.f. 1855 Colombia, Venezuela, Ecuador, Peru and Bolivia
- Pleurothallis millei Schltr. 1915 Ecuador
- Pleurothallis miniatura (Luer, Thoerle & F.Werner) J.M.H.Shaw 2014 Ecuador
- Pleurothallis minutilabia Mark Wilson, Tobar & Á.J.Pérez 2018 Ecuador
- Pleurothallis muriculata Luer & Hirtz 1996 Ecuador
- Pleurothallis navisepala Pupulin, J.Aguilar & M.Díaz 2017 Costa Rica
- Pleurothallis neobarbosae J.M.H.Shaw 2014 Peru
- Pleurothallis neorinkei A.Doucette 2016 Colombia
- Pleurothallis nephroglossa Schltr. 1921 Ecuador
- Pleurothallis nipterophylla C.A.Luer 1976 Ecuador
- Pleurothallis nitida Luer 1977 Panama
- Pleurothallis nossax Luer & R. Escobar 1981 Colombia
- Pleurothallis octavioi Luer & R.Escobar R. 1981 Colombia
- Pleurothallis omoglossa Luer 1976 Ecuador
- Pleurothallis oncoglossa Luer 1996 Costa Rica
- Pleurothallis ortegae Luer & Hirtz 1996 Ecuador
- Pleurothallis orygmoglossa (Luer & Dressler) J.M.H.Shaw 2014 Panama
- Pleurothallis oscarii Archila & Chiron 2011 Guatemala
- Pleurothallis oxapampae Luer 1982 Peru
- Pleurothallis palliolata Ames 1922 Costa Rica and Panama
- Pleurothallis pansamalae Schltr. 1912 Mexico, Guatemalla, Belize, El Salvador, Honduras and Nicaragua
- Pleurothallis papillingua A.Doucette & J.Portilla 2016 Ecuador
- Pleurothallis paquishae Luer 1996 Ecuador and Peru
- Pleurothallis peculiaris Luer 1976 Panama
- Pleurothallis pelicophora Luer 2001 Ecuador
- Pleurothallis penelops Luer 1978 Ecuador
- Pleurothallis perijaensis Dunst. 1978 Venezuela, Colombia and Ecuador
- Pleurothallis peroniocephala Luer 1975 Ecuador
- Pleurothallis perryi Luer 1979 Ecuador
- Pleurothallis persimilis Luer & Hirtz 2003 Ecuador
- Pleurothallis petroana Sierra-Ariza 2023 Colombia
- Pleurothallis phyllocardia Rchb.f. 1866 Costa Rica and Panama
- Pleurothallis phyllocardioides Schltr. 1923 Guatemala, Nicaragua, Costa Rica, Panama, Colombia, Ecuador, Peru, Bolivia and Venezuela
- Pleurothallis phymatodea Luer 1976 Ecuador
- Pleurothallis pileata Luer & R.Escobar 1982 Colombia
- Pleurothallis platypetala Luer & R.Escobar 1996 Colombia
- Pleurothallis platysepala Schltr. 1920 Colombia
- Pleurothallis portillae Luer 1979 Colombia and Ecuador
- Pleurothallis prolaticollaris Luer 1977 Ecuador
- Pleurothallis pudica Pupulin, J.Aguilar & M.Díaz 2017 Costa Rica
- Pleurothallis pyelophera [Luer] comb. novo. Pfahl 2013 Ecuador
- Pleurothallis quitu-cara Carrera & Baquero 2018 Ecuador
- Pleurothallis radula Luer 1979 Costa Rica
- Pleurothallis ramiromedinae Thoerle & Hirtz 2018 Colombia, Ecuador
- Pleurothallis rectipetala Ames & Schweinf. 1925 Panama
- Pleurothallis recurvata Luer & Hirtz 1996 Ecuador
- Pleurothallis reginae Garay 1953 Colombia
- Pleurothallis reptans Luer 1981 Ecuador
- Pleurothallis rhinocera (Luer & Sijm) J.M.H.Shaw 2013 Ecuador
- Pleurothallis rhodoglossa Schltr.1922 Costa Rica, Panama, Colombia and Ecuador
- Pleurothallis rikseniana Mark Wilson & B.T. Larsen 2022 ?Ecuador?
- Pleurothallis ripleyi Luer 1979 Ecuador
- Pleurothallis ruberrima Lindley 1846 Colombia, Ecuador, Peru, Bolivia and Venezuela
- Pleurothallis rubrifolia Mark Wilson, Tobar & Salas Guerr. 2016 Ecuador, Peru
- Pleurothallis rubroinversa Luer 1975 Ecuador
- Pleurothallis rugosa Luer & R.Escobar 1982 Colombia
- Pleurothallis sabanillae M.M.Jiménez & Vélez-Abarca 2023 Ecuador
- Pleurothallis sagittilabia Luer 1998 Colombia
- Pleurothallis sanchoi Ames 1923 Guatemala, Costa Rica and Panama
- Pleurothallis sannio Luer & R.Escobar 1988 Colombia
- Pleurothallis sarcochila Garay 1953 Ecuador
- Pleurothallis scabrilinguis Lindl. 1836 Colombia Ecuador and Peru
- Pleurothallis scaphipetala Luer 1996 Costa Rica
- Pleurothallis scotinantha Pupulin, M.Díaz & J.Aguilar 2017 Costa Rica
- Pleurothallis scurrula Luer 1976 Peru
- Pleurothallis semiscabra Lindl. 1846 Venezuela
- Pleurothallis sergioi Luer & R.Escobar 2003 Colombia
- Pleurothallis serricardia Schltr. 1924 Colombia
- Pleurothallis sigynes Luer 1976 Colombia & Ecuador
- Pleurothallis silvae-pacis Karremans 2011 Costa Rica
- Pleurothallis siphoglossa Luer & R. Escobar 1996 Colombia
- Pleurothallis sotarae Schltr. 1920 Colombia
- Pleurothallis sphaerantha Luer 1975 Ecuador
- Pleurothallis stelidilabia Luer 1979 Ecuador
- Pleurothallis stellata I.Ramírez & Carnevali 2003 Venezuela
- Pleurothallis stenosepala Rolfe 1892 Venezuela, Colombia, Ecuador, Peru and Bolivia
- Pleurothallis stenota Luer 1977 Colombia and Ecuador
- Pleurothallis subtilis C.Schweinf. 1951 Venezuela and Colombia
- Pleurothallis x subversa Pupulin & Bogarin 2021 Costa Rica
- Pleurothallis tamaensis Foldats 1968 northwestern Venezuela
- Pleurothallis tapatiensis Pupulin, M Diaz & Pridgeon 2021 Costa Rica
- Pleurothallis teaguei Luer 1996 Ecuador
- Pleurothallis tinajillensis M.M.Jiménez, H. Garzón & Vélez-Abarca 2023 Ecuador
- Pleurothallis titan Luer 1977 Panama and Colombia
- Pleurothallis tobarii [Luer & Hirtz] comb. novo. Pfahl 2012 Ecuador
- Pleurothallis tonduzii Schltr. 1918 Costa Rica, Panama and Peru?
- Pleurothallis trachysepala Kraenzl. 1905 Colombia, Ecuador, Peru
- Pleurothallis tragulosa Luer & Hirtz 1996 Ecuador
- Pleurothallis transversilabia Carnevali & I.Ramírez 2000 Venezuela
- Pleurothallis triangulilabia C.Schweinf. 1937 Costa Rica
- Pleurothallis tridentata Klotzsch 1840 Venezuela, Colombia, Ecuador, Peru? and Bolivia?
- Pleurothallis troglodytes Luer 1982 Ecuador
- Pleurothallis tyria Luer & Hirtz 1996 Ecuador
- Pleurothallis undulata Poepp. & Endl. 1836 Peru
- Pleurothallis upanoensis Luer & Hirtz 2003 Ecuador
- Pleurothallis valladolidensis Luer 1983 Ecuador
- Pleurothallis variabilis Luer 1979 Colombia and Ecuador
- Pleurothallis villahermosae Sierra-Ariza, Rinc.-González & Villanueva 2022 Colombia
- Pleurothallis vinealis Luer & R.Escobar 1986 Colombia and Ecuador
- Pleurothallis volans Luer & Hirtz 1996 Ecuador
- Pleurothallis whitteniana MWilson & B T Larsen 2022 Ecuador, Peru
- Pleurothallis zarumae Luer & Hirtz 1996 Ecuador
--------------------------------------------------------------------------------------------------------------------------