Mediolobivia euanthema var. ritteri (Wessner) Donald in Cactus (Paris) 40: 39. 1954
Mediolobivia euanthema var. ritteri in Cactus (Paris) 40: 39. 1954
is new combination for Lobivia ritteri in Beitr. Sukkulentenk. Sukkulentenpflege 1938: 3. 1938
Mediolobivia euanthema var. ritteri in Cactus (Paris) 40: 39. 1954
Taxon for this name