While your second cactus isn’t a gymnocalycium it is a BEAUTIFUL specimen of a stenocactus species. Same with the larger specimen. The unknown specimen is a matucana, one of my FAVORITES!!!! Perhaps M. Madisonorium? Great collection btw!
Thank you! I really appreciate your comment! A while ago I think I totally swapped the label of the stenocactus species with the label of the gymnocalycium, which I don't have anymore. So that explains it. But thanks for mentioning it, because otherwise I wouldn't have noticed that happened! And thank you for the suggestion of M. Madisonorium. He looks a lot like that, I think that's it!
I want them all, i just know im gonna be moving states here in a year or two and already have a stressfull amount lol. Dragonbones may be an exception though...