Pleurothallis ariana-dayanae, a new species in subsection Macrophyllae-Fasciculatae (Pleurothallidinae) from the Cordillera del Cóndor, Ecuador

Abstract

A new species of Pleurothallis from the Cordillera del Cóndor in southeast Ecuador is described and illustrated. In addition, information concerning its distribution, habitat, and phenology is provided. Pleurothallis ariana-dayanae is similar to P. paquishae but differs in the size of the flower, the dorsal sepal 6.5–7.8 mm long, the petals slightly falcate, linear, microscopically verrucose-papillose on the dorsal surface, minutely denticulate along the margins; the lip is ovate-elliptic with, denticulate-ciliate margins, with a slightly bilobed glenion. Pleurothallis ariana-dayanae is also compared with P. scabrilinguis, and P. applanata, an endemic species to Ecuador.

Two new species of Pleurothallis (Pleurothallidinae) subsection Macrophyllae-Fasciculatae from The Central Andes of Colombia

“…Members of this group are characterized by flowers with linear, falcate petals, large, flattened lip with irregular texture (cellular, verrucous, papillose, pilose, vesicular), and a conspicuous basal glenion (Vélez-Abarca et al 2022).…”