A Gymno, a Lobivia

[gillinger]

I was in a garden centre yesterday and came upon some cacti that had obviously come from someone's personal collection as they had handwritten labels and good compost. When I asked I was told that a guy sometimes brought some in and they'd sell them on his behalf. I managed to get a Copiapoa tenuissima, a Gymnocalycium labelled as hybrid, and these two, labelled as Gymncalycium and Lobivia, but no further details.
Cactiguide doesn't list Lobivia as a species and the photos on Llifle are not very clear so I'm taking a guess here at L. aracnacantha.
For the Gymno I'm thinking G curvispinum or even G denudatum v. curvispinum?
Help, as always, appreciated.

[Tom in Tucson]

Np. 1 ?
No. 2 could be Gymnocalycium cardenasianum

[anttisepp]

G monvillei

[MrXeric]

The first one looks like something related to Lobivia backebergii, like Lobivia wrightiana or Lobvia winteriana.

[gillinger]

Thanks for the replies. I'll follow those up

[jerrytheplater]

Nice finds!! Right place, right time.