Pleurothallis siphoglossa Luer & R. Escobar 1996 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859
Photos by © Jay Pfahl
Photo by © Eric Hunt
TYPE Drawing by © Carl Luer
to 
Common Name The Tube-Shaped Lip Pleurothallis
Flower Size .6" [1.5 cm]
Found in Venezuela, Norte de Santander, Santander and Antioquia departments of Colombia and Morona-Santiago and Azuay provinces of Ecuador at elevations around 2400 meters as a cold growing, caespitose epiphyte with slender to stout, erect ramicauls enveloped by 1 to 2 close, tubular sheaths and another on the lower third and carrying a single, apical, suberect to spreading, coriaceous, ovate to narrowly ovate, acute, slightly acuminate, basally sessile and deeply cordate leaf that blooms in the spring in Colombia and summer in the US on a fascile, arising through and concealed by a spathe, of successively single, few flowered inflorescence with a thin, tubular, shorter than the pedicel floral bract and holding the flower close against the leaf base and has a tubular floral bract.
Distinguished by the lip with acutely revolute sides above the middle with the margins in apposition below to form a tube which often curves up at the apex.
P siphoglossa is similar to P adonis, P deflexa, P grandiflora, P linguifera, P millei and P sarcochila in the large sized flowers.
Synonyms Acronia siphoglossa (Luer & R. Escobar) Luer 2005; Zosterophyllanthos siphoglossa (Luer & R.Escobar) Szlach. & Kulak 2006
References W3 Tropicos, Kew Monocot list , IPNI ;
* Orquideología 20: 82. Luer & R. Escobar 1996 drawing fide;
Venezuelan Orchids Vol 4 Dunsterville & Garay 1966 as P grandiflora drawing good;
Orchids of Venezuela An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 as P grandifora drawing fide;
Native Colombian Orchids Vol 3 COS 1991 as P decurva photo fide;
Native Colombian Orchids Vol 6 COS 1998 errata = P siphoglossa;
Orchids of Venezuela [An illustrated field guide] Vol. 3 Ramiro and Carnevali 2000 drawing fide;
Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia siphoglossa
Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia siphoglossa drawing fide
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