Copryphantha macromeris

This is probably the most unusual Coryphantha. In the wild it forms large low mounds of hundred or more of heads, often more than 3 feet across.

Yavia crypticarpa

Echinocactus texensis fruit

Escobaria vivipara

Matucana intertexta

Matucanas are nice and easy but not very common in cultivation plants.

Lobivia chrysochete

The less-known Lobivia from Bolivia.