Scaphosepalum luannae, a new species, and Scaphosepalum anchoriferum (Orchidaceae: Pleurothallidinae) from North-Western Ecuador

A new species, Scaphosepalum luannae, is described, and new records for Scaphosepalum anchoriferum from Ecuador are presented. Scaphosepalum luannae is superficially similar to S. swertiifolium but it differs in the dark green leaves, conspicuously nerved at the abaxial side and shiny at the adaxial side, the sub-quadrate petals with a basal lobe at the columnar margin and the lip with a truncate base without lobes with an oblong and flat hypochile. Scaphosepalum luannae and S. anchoriferum were discovered growing sympatrically in a poorly explored cloud forest from north-western Ecuador, near the border with Colombia. Key words: Ecuador, new species, Reserva Dracula, Scaphosepalum anchoriferum