Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Mammillaria grahamii ssp. sheldonii
Echinocereus subinermis
Echinocereus subinermis
Echinocereus subinermis
Echinocereus subinermis
Echinocereus subinermis