For the discussion of topics related to the conservation, cultivation, propagation and exhibition of cacti & other succulents only.
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http://www.cactus-moravia.eu/?eco=mail& ... y_2017_-_1
First update: Kaktusy Nechvil at http://kaktusynechvil.wz.cz/home.html (don't let the date on top of the page fool you, it really is updated as of today (just click on the Czech language button to see it correctly changed on the Czech page)).
I see Utahia sileri on the list. Apparently a new species I have not heard of before. Quite pricey, though...
Cactus Moravia also list this (under Pediocactus)
Old name for Sclerocactus iirc.
I have read that Sclerocactus sileri and Pediocactus/Utahia are different, or at least confused. Mesa Garden has listed Sclero 'busekii' SB1086 as S sileri.
I haven't investigated whether we are really talking about one and the same species.