Pleurothallis mesopotamica Bogarin & Belfort 2021 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

Photo by Franco Pupulin and Harvard Papers in Botany Vol. 26, No. 1 2021, The Researchgate Website

Common Name The Between The Rivers Pleurothallis [refers to its being found between the Sombrero and Patarrá rivers]

Flower Size .4" [1 cm]

Found in Cartago province of Costa Rica in premontane rain forest at elevations around 1579 meters as a small sized, cool to cold growing, caespitose epiphtye with terete, slender, pale green ramicauls enveloped basally by 2, tubular, obtuse, papyracemous sheths and carrying a horizontal to subreclinate, thinly coriaceous, flexible, sessile, narrowly ovate, acuminate, pale green with scattered purple spots, cordate base leaf with the basal lobes overlapping that blooms in the winter on a single flowered inflorescence arising through a suberect, oblanceolate, rounded to subtruncate, spathe.

"Pleurothallis mesopotamica is very similar to P. rectipetala but can be distinguished by the suberect spathe (vs. erect), the dark purple flowers (vs. dull purple flowers with yellow near the margins), the subfalcate petals with entire margins (vs. linear-lanceolate, minutely denticulate petals), and the verrucose lip (vs. irregularly papillose lip). It could be also compared with P. radula, from which it differs in the dark purple flowers (vs. yellow, rarely suffused with pink) and the slightly verrucose lip (vs. densely packed with shortly tuberculate-dentate, irregular projections)." Pupulin etal 2021


References W3 Tropicos, Kew Monocot list , IPNI ; * Harvard Papers in Botany Vol. 26, No. 1 2021, The Researchgate Website photo/drawing fide;