Growing together, living together...

The two plants on the left are Dyckia Apolônia a hybrid Dyckia

and also a hybrid is the red front one this is a Dyckia pectinata 

and Dyckia goehringii  primary hybrid.

On the rear right you see a Dyckia fosteriana

and in the center a Dyckia sp from Minas Gerais, a Dyckia argentea affinis.