Exchange opuntioids

Submitted by Martin Tversted on

I have a smaller surplus of cold hardy Maihueniopsis for exchange. They have proven hardy for me to at least minus 19C for weeks of being frozen. Im sure they take it colder down south where there is more winter sun.
Im looking for cuttings or seeds of named locations or cultivars of smaller US opuntioids like polyacantha, aurea, debrechzyi, fragilis etc.

Denmark Z6