I like them all. They look great and its fun to try and ID them from a top photo. Most were easy but not sure of 3rd down from top. I'd guess some type of mamm but wouldn't know which one. The Uebelmannia is especially nice from the top; sort of a pretty cactus asterisk :) The Gymnocalycium saglionis looks a bit like a very weird brussels sprout plant. Very nice Alain. Thanks for the treat.
I had not planned a quiz but now I look........ I like that taking photos make you look at the plants. The third from the top I think is Copiapoa krainziana. There are not so many shows now. I am told in USA more effort is made with pots than the UK. I think show pots often take valuable space in the greenhouse.
"I am told in USA more effort is made with pots"That is primarily true in southern and central California where they are a bit crazy about trying to match plant with pot. Not the same for most growers here in the East US. Heck, I sometimes pot things in old coffee cans, and we had one grower pot his semps in an old work shoe. Mostly, we use clay or round plastic. I use clay but seal the inside of the pot with polyurethane (or similar material) to keep the salts from leaching through and slow the soil mix drying a bit. I use a very porous potting mix and I'm by nature an under-waterer. Copiapoa krainziana huh? Oh well, I guess if I had a closer look and didn't see any tubercles, I might have done a better job on my ID guess. Great photos in any event.
The BCSS have just introduced new judging rules giving more points for presentation including pots on the basis that it is a show. So far I have not seen much change except one entrant got down pointed for different coloured pots.I once saw Senecio rowleyanus grown in a pea tin which was effective. I used coconut shells as they had holes in and could be hung up. Popular with children. I have never been able to get my Copiapoa krainziana to flower although it is now 2 foot across.