Pleurothallis isthmica Luer 1977 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

Photo by Pupulin and The Epidendra Website

Common Name The Isthmus Pleurothallis [refers to the species location]

Flower Size .4" [1 cm]

Found in Honduras, Costa Rica and Panama at elevations of 750 to 1200 meters as a miniature sized, warm growing epiphyte with slender, suberect to horizontal ramicauls enveloped by a close tubular sheath in the lower half and 2 more at the base and carrying a single, apical, horizontal, erect in relation to the ramicaul, coriaceous, narrowly ovate, acute, round and sessile base leaf that blooms in the summer on a successively single flowered inflorescence arising through a spathe with the peduncle concealed within and tubular floral bracts.

Similar to P discoidea but differs in the narrowly ovate, basally rounded, shallowly cordate base, a larger spathe and an ovate-oblong lip.

Synonyms Acronia isthmica (Luer) Luer 2005; Zosterophyllanthos isthmicus (Luer) Szlach. & Kulak 2006

References W3 Tropicos, Kew Monocot list , IPNI ; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Icones Pleurothallidinarum Vol XXVII Luer 2005 drawing as Acronia isthmica drawing fide; Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo good