Pleurothallis palliolata Ames 1922 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859
Photos by Ralf Käppel.
Plant and Flowers in situ Costa Rica
Photo by © Wilfried Löderbusch
Drawing by © Carl Luer
to 
Common Name The Pale Sided Pleurothallis ?
Flower Size .6" [1.5 cm]
Found in Heriada, Alajuela, Puntarenas, Guanacaste and Cartago provinces of Costa Rica and Chiriqui province of Panama as a small sized, warm to cool growing, caespitose epiphyte at elevations of 1200 to 2100 meters with slender, suberect to horizontal ramicauls enveloped basally by 2 close, tubular sheaths and another on the lower half and carrying a single, apical suberect to horizontal, coriaceous, ovate, acute, basally sessile and deeply cordate leaf that can bloom at any time of the year on a fascile, arising through a narrow spathe, of successive single [sometimes two] flowered inflorescence with a tubular, as long as the pedicel floral bract.
Easily distinguished by the large, not widely expanded flower with a deeply concave dorsal sepal and a synsepal concave below the middle to accomodate the comparitively large transversely ovate, concave lip with 2 pairs of calli which is surrounded by the falcate, fringed petals.
Synonyms Acronia palliolata (Ames) Luer 2005; Zosterophyllanthos palliolatus (Ames) Szlach. & Kulak 2006
References W3 Tropicos, Kew Monocot list , IPNI ;
* Proc. Biol. Soc. Washington 35: 86 Ames 1922
AOS Bulletin Vol 62 No 1 1993 photo fide;
Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003 drawing fide;
Australian Orchid Review Vol 69 No 5 2004 photo;
Icones Pleurothallidinarum Vol XXVII Systematics of Dryadella Systematics of Macrophyllae-Fasciculatae Luer 2005 as Acronia palliolata
Icones Pleurothallidinarum Vol XXVII Systematics of Dryadella Systematics of Macrophyllae-Fasciculatae Luer 2005 as Acronia palliolata drawing fide ;
AOS Bulletin Vol 75 No 2 2006 photo fide;
AOS Bulletin Vol 76 No 9 2007 photo fide as Acronia palliolata;
Orchid Digest Vol 72 No 4 2008 photo fide;
LANKESTERIANA 13(3) 2014 photo fide;
LANKESTERIANA 17(2): Pupulin 2017;
Lankesteriana 19(1). 31 - 55 2019 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 fide;
--------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------
