Luer & R.Escobar 1982 - Luer CA, R. RE (1982) NEW SPECIES AND COMBINATIONS IN DRACULA AND MASDEVALLIA (ORCHIDACEAE) FROM COLOMBIA AND VENEZUELA. Selbyana 7(1): 64-78. Retrieved from http://www.jstor.org/stable/41759566
There is no corrections for Masdevallia posadae yet.