Echeveria affinis 'Black Beauty'

Echeveria pulvinata

Graptosedum 'Bronze'

This plant goes by many names: Graptosedum 'Bronze', G. 'Vera Higgins', and G. 'Alpenglow'. Here are its colors in cooler temperatures. During the summer, its quite bronze.

Mammillaria

I don't know what species this is.

Echeveria 'Black Knight'

Echeveria 'Carlsbad'

Rebutia vallegrandensis

The last Rebutia of the season to flower for me.