Neat plants Alain. When I looked at the first photo I briefly thought I was looking at a Faucaria! Allbeit a strange looking faucaria. :) I've never grown Carruanthus. Flowers are typical mesemb but plants have interesting leaves with the toothed margins. Very nice.
These two are considered the same but different enough for me to be happy growing both. I grow a lot of different looking Conos which have the same name. Carruanthus do not seem to be as widely grown as Faucaria. I am starting to grow some more Faucarias from seed.