Pleurothallis castanea Mark Wilson, G.Merino & J.D.Werner 2016 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

LCDP Photo by Mark Wilson & Portilla

Full shade Warm Cool Spring

Common Name The Chestnut Colored Pleurothallis [Refers to the sepals and petals color]

Flower Size .6" [1.5 cm]

Found in Ecuador without locational data as a small sized, warm to cool growing, caespitose epiphyte with erect ramicauls enveloped by a papery, basal sheth and carrying a single, apical, deflexed, spreading, long acuminate apically, entire margins, glabrous, coriaceous, slightly concave, cordate base leaf that blooms in the spring on a short, arising through a suberect spathe, single flowered inflorescence carrying a non-resupinate flower

Part of the Pleurothallis cardiostola/Pleurothallis lilijae complex. Pleurothallis castanea can be distinguished from Pleurothallis cardiostola by the glabrous sepals and petals in P. castanea vs. cellular-glandular to coarsely pubescent in P. cardiostola; the longer sepals and petals in P. castanea; and the leaf ovate in P. castanea vs. ovate to lanceolate in P. cardiostola. P. castanea is also similar to Pleurothallis lanigera Luer & Hirtz [considered to be a synonym of P cardiostola], but differs in the sepals and petals, glabrous in P. castanea vs. markedly pubescent in P. lanigera." Mark Wilson, Luis Baquero, Katharine Dupree, Marco M. Jiménez, Cheryl M. LeBlanc, Gilberto Merino, Jose Portilla, Marcos Salas Guerrero, Francisco Tobar Suárez & Jon D. Werner 2016

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ;

* LANKESTERIANA 16(3): 358 Mark Wilson, Luis Baquero, Katharine Dupree, Marco M. Jiménez, Cheryl M. LeBlanc, Gilberto Merino, Jose Portilla, Marcos Salas Guerrero, Francisco Tobar Suárez & Jon D. Werner 2016

LANKESTERIANA 16(3): 359-360 Mark Wilson, Luis Baquero, Katharine Dupree, Marco M. Jiménez, Cheryl M. LeBlanc, Gilberto Merino, Jose Portilla, Marcos Salas Guerrero, Francisco Tobar Suárez & Jon D. Werner 2016 photo/drawing fide;

Harvard Papers in Botany, Vol. 27, No. 2, 2022, pp. 187–220. © President and Fellows of Harvard College NEW SPECIES OF PLEUROTHALLIS (ORCHIDACEAE)Mark Wilson, Bruno Larsen, Juan Sebastián Moreno, Raven Ward, Joost A. G. Riksen, Luis Piña, Mario A. Sierra-Ariza, Marco M. Jiménez, Milton Rincón-Gonzalez, Robinson Galindo-Tarazona, Henry Garzón Suárez and David Haelterman 2022

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