Specklinia, sensu Pridgeon & Chase, 2001

Pupulin, Franco, Karremans, Adam P. & Gravendeel, Barbara, 2012, A reconsideration of the empusellous species of Specklinia (Orchidaceae: Pleurothallidinae) in Costa Rica, Phytotaxa 63 (1), pp. 1-20 : 3

Key to the Costa Rican species of Specklinia close to S. endotrachys

1. Flowers yellow with red petals; lip acute, yellow, with a central red line; column wings broad, entire; clinandrium entire ................................................................................................................................................................ S. pfavii

- Flowers entirely orange; lip rounded to truncate, concolorous orange; column wings narrow, denticulate; clinandrium erose-dentate ............................................................................................................................................. 2

2. Plant repent; inflorescence lax; flowers not spreading; petals not apiculate .......................................... S. remotiflora

- Plant caespitose; inflorescence congested; flowers spreading; petals distinctly apiculate .......................................... 3

3. Floral bracts subequal to the length of the pedicel; dorsal sepal lanceolate; petals retuse, densely and coarsely papillose, provided with a long mucron abruptly inserted within the sinus .......................................... S. endotrachys

- Floral bracts much shorter than the length of the pedicel; dorsal sepal linear-triangular; petals acute, tapering, microscopically papillose, the mucron continuous with the apex ............................................................ S. spectabilis