Masdevallia discoidea is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Epidendreae, subtribe: Pleurothallidinae,  
Genus Masdevallia   subgenus Polyanthae  section: Successiviflorae   subsection: Successiviflorae 
Infraspecific taxa recognized within Masdevallia discoidea: infraspecific taxa
This species is found in Brazil (Espírito Santo).