Thelocactus nidulans subsp. matudae (Sánchez-Mej. & A.B.Lau) N.P.Taylor in Cactaceae Consensus Init. 5: 14. 1998
Thelocactus nidulans subsp. matudae in Cactaceae Consensus Init. 5: 14. 1998
is new combination for Thelocactus matudae in Cact. Suc. Mex. 23(3): 51. 1978