Conophytum stephanii subsp. helmutii (Lavis) S.A.Hammer in Hartmann, Illustr. Handb. Succ. Pl. Aizoaceae A-E: 168. 2001 ["2
Conophytum stephanii subsp. helmutii in Hartmann, Illustr. Handb. Succ. Pl. Aizoaceae A-E: 168. 2001 ["2002"]
is new combination for Conophytum helmutii in S. African Gard. 22: 138. 1932
Conophytum stephanii subsp. helmutii in Hartmann, Illustr. Handb. Succ. Pl. Aizoaceae A-E: 168. 2001 ["2002"]