Resumo

VELEZ-ABARCA, Leisberth; JIMENEZ, Marco M.; GUTIERREZ DEL POZO, Diego  e  BAQUERO, Luis E.. Pleurothallis ariana-dayanae, a new species in subsection Macrophyllae-Fasciculatae (Pleurothallidinae) from the Cordillera del Cóndor, Ecuador. Lankesteriana [online]. 2022, vol.22, n.2, pp.101-109. ISSN 1409-3871.  http://dx.doi.org/10.15517/lank.v22i2.51750.

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.

Palavras-chave : Andean tepuis; micro-endemism; Pleurothallis applanata; Pleurothallis paquishae; taxonomy.

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