Thelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov. in Bradleya 18: 63. 2000 Thelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov. in Bradleya 18: 63. 2000is new combination for Thelocactus flavus Mosco & Zanov. in Cactus & Co. 2: 20. 1999Taxon for this nameThelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov.