Platystele psix Luer & Hirtz, Monogr. Syst. Bot. Missouri Bot. Gard. 44: 117, pl. 80. 1992.
TYPE: Ecuador. Napo: epiphytic in forest around Bermejo, alt. 450-600 m, April 1990, A. Hirtz 4830 (holotype, MO; detail of holotype, MO).