Dear Bruno,
its a nice Form of Pterocactus fischeri. The southern Forms of australis makes more, small, globular Segments.
Thats my opinion! I have seen Plants like yours in the Province of Neuquen, Argentina.

Cheers
Cyrill

Note:
The correct spelling of the Terminus should be forma fiambalaensis.
The same mistake we have decades ago by the Echinopsis(Lobivia) famatimenesis (Should be call famatimaensis)



Tephrocactus alexanderi fa. fiambalaensis in situ

Hi Friends, Tephrocactus alexanderi var.fiambalensis n.p. was a nom. prov. of the Collection by Zlatko Janeba`s Fieldnumber ZJ 191. He found this Plants on the Way from Fiambala eastwards to the Thermas de Fiambala on the flater Hillside area. I have visitet the Habitat too and the Plants looks very...

Dear Friends,

At the last Museumsnight we have a Performer in the Succulent Collection in Zürich, he plays with Spines! Look at Youtube:

Cactus Crackling

Cheers
Cyrill

Thank you all for this warm welcome, @Diane Of course i have a dream job , i enjoy each day that i work ;-) @Stuart Estell The Plant on the Photo is a graftet Specimen. I cultivate several bonnieaes graftet and on own Roots. On own Roots the Plants grows very slow and produce less Buds than the graf...

Dear C&S Lovers, My Name is Cyrill Hunkeler, i `m from Switzerland and my Main Interest is in small andin Opuntias. I`m an Newbie in this Forum and i hope i can share my Experience with all of you. I`m work in one of the most famous Cacti and Succulent Collections here in Europe: In the Zurich S...