Ariocarpus furfuraceus (S.Watson) H.S.Thomps. in Rep. (Annual) Missouri Bot. Gard. 9: 130. 1898
Ariocarpus furfuraceus in Rep. (Annual) Missouri Bot. Gard. 9: 130. 1898
is new combination for Mammillaria furfuracea in Proc. Amer. Acad. Arts 25: 150. 1890