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