Pleurothallis thysana Luer & J.J. Portilla 2001 SUBGENUS Didactylus Luer 2004
Photos by Marni Turkel
Photo by Ecuagenera and their Ecuadorian Orchid Website.
TYPE Drawing by Carl Luer
Common Name The Fringed Pleurothallis [refers to the petals and lip]
Flower Size .2" [5 mm]
Found in Morona-Santiago province of Ecuador at elevations around 1500 meters as a small sized, cool growing, caespitose epiphyte with slender, erect to horizontal ramicaul enveloped by a tubular sheath below the middle and 2 to 3 others at the base and carrying a single, apical, erect, coriaceous, elliptical, acute, cuneate below into the sessile base leaf that blooms in the summer on a thin, pendent to arching, flaccid, peduncle 1.6" [4 cm] long, distichous, rachis 1.2 to 2.4" [3 to 6 cm] long, simultaneously few flowered inflorescence without a spathe and has a tubular, shorter than the ovary floral bract.
"Characterized by a large habit, an elliptical, sesslie leaf and an arching, pendent raceme of large, bright orange flowers. The sepals are fleshy-carinate. The dorsal sepals is narrowly attenuate, while the laterals are connate into a boat shaped synsepal. The petals and long slender lip are long fimbriate." Luer 2004
Synonyms Acianthera thysana (Luer & J.Portilla) Karremans 2016; Didactylus thysana (Luer & J.J. Portilla) Luer 2004
References W3 Tropicos, Kew Monocot list , IPNI ;
*Revista Soc. Boliv. Bot. 3: 62 Luer & J J Portilla 2001
Native Ecuadorian Orchids Vol 4 Dodson 2003 photo fide;
Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 as Didactylus thysana;
Icones Pleurothallidinarum Vol XXVII Dryadella and Acronia section Macrophyllae-Fasiculatae Luer 2005 as Didactylus thysana;
Harvard Pap. Bot. 21: 186 Karremans 2016 as Acianthera thysana;
Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera thysana photo fide
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