Mammillaria haageana Pfeiff. [ Mammillaria elegans DC.]
no HD illustration available (m1)
Mammillaria haageana Pfeiff. [Cactaceae]
K.M. Schumann, M Gürke, F. Vaupel, Bl. Kakt., vol. 3 : t. 139 (1910) [J. Pohl]