Epithelantha micromeris subsp. greggii (Engelm.) N.P.Taylor in Cactaceae Consensus Init. 5: 12. 1998
Epithelantha micromeris subsp. greggii in Cactaceae Consensus Init. 5: 12. 1998
is new combination for Mammillaria micromeris var. greggii in Proc. Amer. Acad. Arts 3: 261. 1856