$modus 0: smartphone
$modus 1: smartphone
Mammillaria sphaerica
Mammillaria sphaerica A. Dietr. [Accepted]
Cactaceae Cactoideae Cacteae
6 639736 Mammillaria sphaerica A. Dietr. [0]
N.L. Britton, J.N. Rose, Cact., vol. 4 : t. 7 (1923) [M.E. Eaton]