Neomammillaria armillata (K. Brandegee) Britton & Rose
no HD illustration available (m1)
Neomammillaria armillata (K. Brandegee) Britton & Rose [ Mammillaria armillata K. Brandegee] [Cactaceae]
N.L. Britton, J.N. Rose, Cact., vol. 4 : t. 15 (1923) [M.E. Eaton]