Mammillaria boolii
Common Names include:
RUSSIAN (Русский): Маммиллярия Бола
UKRAINIAN (Українська): Мамілярія Буля
Mammillaria hahniana
Old Lady Cactus
Mammillaria gracilis fragilis
Thimble Cactus
Mammillaria bombycina
Silken Pincushion
Mammillaria columbiana
Species designation is VERY tentative
Mammillaria matudae
Species designation is VERY tentative. Click on image to open post.
Mammillaria elongata
Ladyfinger cactus