Pleurothallis tricarinata [Barb. Rodr.] Poepp. & Endl. 1836 SUBGENUS Acianthera SECTION Tricarinatae Luer 1986 Photo courtesy of © Dalton Holland Baptista and Orchidstudium

Inflorescence apex Photo by Gilberto Khouri and his Flickr orchid photo site

Inflorescence Photo courtesy of Eric Hunt

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Common Name The Three Keeled Pleurothallis

Found in Ecuador, Peru, Bolivia, and Brazil in wet montane forests at elevations of 80 to 1650 meters as a small sized, hot to warm growing epiphyte with erect ramicauls enveloped basally by 2 to 3 basal, loose, tubular, imbricating, acuminate sheaths all carrying a single, apical, elliptic-lanceolate, acute, dark green leaf with a compressed, petiolate base that blooms in the fall, winter and early spring on a congested, terminal, 10" [25 cm] long, racemose many flowered inflorescence subtended by a spathe.

Synonyms Acianthera tricarinata (Poepp. & Endl.) Pridgeon & M.W. Chase 2001; Humboltia tricarinata (Poepp. & Endl.) Kuntze 1891; *Lepanthes tricarinata Barb. Rodr. 1882; Masdevallia tricarinata F. Lehm. & Kraenzl. 1899; Pleurothallis acutangula H.Wendl. & Kraenzl. 1900; Pleurothallis platystachys Regel 1888; Pleurothallis trialata Rolfe 1907; Pleurothallis triptera Schltr. 1922

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854 as P tripteris; Xenia Orchidaceae vol 2 Rchb.f 1865 drawing fide; Xenia Orchidaceae Vol 3 Reichenbach as P acutangula drawing; Systematics of Pleurothallis Vol 3 Luer 1986; Icones Orchidacearum Peruviarum Plate 167 Bennett & Christenson 1993 drawing ok; Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994 as P platystachys; Lindleyana Vol 16 No 4 2001 as Acianthera tricarinata; Icones Pleurothallidinarum Vol XXVI Luer 2004 Drawing ok;

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