Digitorebutia brachyantha var. ritteri (Wessner) Donald in Natl. Cact. Succ. J. 12: 11. 1957
Digitorebutia brachyantha var. ritteri in Natl. Cact. Succ. J. 12: 11. 1957
is new combination for Lobivia ritteri in Beitr. Sukkulentenk. Sukkulentenpflege 1938: 3. 1938