i got a few new cacti from a lovely aging fellow with a great nursery, which due to sombre circumstances has been a little neglected

the first is Gymnocalycium buenekeri , top right is Thelocactus conothele (or conothelos?)
and the bottom i need an id for. is it thelocactus?


this is the guy



also this one too, has seen better days, and i have no clues

I'm going to attempt to be helpful and guess the last one might be a mamm of some sort because it looks a little like some I just got, but I am most likely wrong Do you think he'll perk up?

yeah i dont doubt it actually. there's green there in the midddle somewhere

The third one could be a gymnocalycium a thelocactus or maybe a matucana. You need to wait till it flowers before you can tell. The last one is a Mammallaria sp.

That first plant I know as G. horstii, do you know if buenekeri is an old or new name?
Hope that helps.

i'd say its an old-ish name as the guy who grew it is pretty old. i dont know if its an accepted name now but i believe it was once a subspecies of horstii. (or maybe it was its own species and is now a subspecies i cant remember)
but apparently there is a difference.

i wil be eagerly awaiting a flower from that unknown...

the mamm is feeling alot better now, already bulking out

hi again, Prier thanks for your insight i think it might be a Matucana, most likely madisoniorum or possibly oreodoxa
it looks a lot like this http://www.cactusedintorni.com/images/phocagallery/cactacee/matucana/thumbs/phoca_thumb_l_matucana-madisoniorum.jpg

i'm stoked if it is, totally not what i was expecting. matucana seem quite rare, are they?
it is one bizarre looking cactus, thats why i got it, cos i like it.
mmm ... peruvians

i hope it flowers soon

Glad the Mamm is perking up

That looks likely, cool looking cacti, I like odd ones.

I thought of Matucana too - madisonorum is not so intensly spined usually, I got one with a single spined areole - but this is an older plant I guess...

Yeah, I'm agreeing with mutant here... to my eye, it looks like a hard-grown Matucana madisoniorum. It seems that this species has pretty variable spination... I've seen examples ranging from moderately prickly through to a clump that did a pretty good job of impersonating a caespitose Loph.

Check these out... Cactiguide Matucana madisoniorum