Synonyms
Zygopetalum brachypetalum Lindl.
Zygopetalum sincoranum V.P.Castro & Campacci
Zygopetalum intermedium var. peruvianum Rolfe
Zygopetalum massangei Jacob-Makoy ex T.Moore & Mast.
Zygopetalum mackayi var. intermedium Mutel
Zygopetalum bolivianum Schltr.
Zygopetalum mackayi var. parviflorum Regel
Zygopetalum mackayi var. pictum Regel
Eulophia mackaiana Lindl.
Zygopetalum mackayi Hook.