Mammillaria micromeris var. greggii Engelm. in Proc. Amer. Acad. Arts 3: 261. 1856
Mammillaria micromeris var. greggii in Proc. Amer. Acad. Arts 3: 261. 1856
is basionym for Epithelantha greggii in Cactography 5. 1926
is basionym for Cephalomammillaria micromeris var. greggii in Ceskoslov. Zahradn. Listy 1924: 120. 1924
is basionym for Epithelantha micromeris var. greggii, Cacti, ed. 1: 212. 1937
is basionym for Cephalomamillaria micromeris var. greggii in Ceskoslov. Zahradn. Listy 1924: 120. 1924
is basionym for Cephalomammillaria greggii in Život v Přír. 29(9): 9. 1925
is basionym for Mammillaria greggii in Annual Rep. U.S. Natl. Mus. 1908: 531. 1909
is basionym for Cactus micromeris var. greggii in Contr. U.S. Natl. Herb. 3: 101. 1894
is basionym for Epithelantha micromeris subsp. greggii in Cactaceae Consensus Init. 5: 12. 1998