I found all three of these species in the Galeras mountains, between Ecuador's Rio Napo and Volcan Sumaco, at elevations around 1700 m. They differ not only in color but in shape of the lip callus, and shape and color of leaves. There is only supposed to be one Psilochilus in Ecuador. The existence of three species in one small area suggests that the genus is seriously under-collected. I have found additional species in the Cordillera del Condor.