Pleurothallis oncoglossa Luer 1996 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859
Photo by © Daniel Jimenez and his Flickr Orchid Photo Website
TYPE Drawing by © Carl Luer and The Epidendra Website
Common Name The Hook-Shaped Tongue Pleurothallis
Flower Size 5/8" [1.5 cm]
Found in Heridia and Cartago provinces of Costa Rica in shady moist cloud forest at elevations of 1100 to 1900 meters as a large sized, cool growing epiphyte with erect, stout ramicauls enveloped basally by 2 close, tubular sheaths and another on the lower half and carrying a single, apical, suberect to spreading, coriaceous, avate, acute, acuminate, basally sessile and deeply cordate leaf that blooms in the winter on a reckining, arising through and concealed within a narrow spathe and holding the flower against the leaf base, peduncle .2 to .4" [5 to 10 mm] long, on a fascile of successively single, few flowered inflorescence with an as long as to shorter than the pedicel floral bract and carrying purple to red-brown flowers.
Similar to P cardiothallis but differs in the large thick, acutely triangular lip with a narrow hook-like apex.
Synonyms Acronia oncoglossa [Luer]Luer 2005; Zosterophyllanthos oncoglossus (Luer) Szlach. & Kulak 2006
References W3 Tropicos, Kew Monocot list , IPNI ;
* Lindleyana 1: 86 Luer 1996 drawing fide;
Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003;
Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia oncoglossa
Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia oncoglossa drawing fide;
Orchids of Costa Rica Vol 5 Morales 2009 photo fide; 17(2): Pupulin 2017 photo fide;
Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo fide;
Harvard Papers in Botany Vol. 26, No. 1 2021, The Researchgate Website photo/drawing fide;
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