$modus 0: smartphone
$modus 1: smartphone
Mammillaria schumannii
Mammillaria schumannii Hildm. [Accepted]
Cactaceae Cactoideae Cacteae
6 639690 Mammillaria schumannii Hildm.
N.L. Britton, J.N. Rose, Cact., vol. 4 : t. 7 (1923) [M.E. Eaton]