A nice urceolate (bellshaped) flower of today , ... never opened really wide either.

Only bud on the plant of P. fischeri

These are SB 465 from Mesa Garden . There are reddish spined and yellow spined ones in the pot. 2 year old seedlings.

North to E. krausii grows T. esmeraldana which is also quite variable in its forms. See the other thread about esmeraldana http://www.cactus-society.org/foruma/viewtopic.php?f=1&t=161777&p=227721&hilit=Eriosyce+esmeraldana&sid=c219974c3e0b77db463936f2501d5087#p227721 It often has por...

So true Dave.
I heard about Steven Brack puttting similar plants of the same genus as far apart as he can to prevent insects from pollinating them from the flower next to it. It must be an awful mess in his collection of mother plants then

Hello Ian, flower picture would be nice, might have some some taltalensis genes from the look of the plant and spines. Regarding E. krausii I looked up the flower color in the books: Kattermann: yellow sometimes with pale reddish midstripes Hoffmann /Walter : odieri ssp. malleolata: flores amarillas...

Thanks for the photo Iann, not too many brownish bristles on the bud though.
A bud and a fruit on a T. aerocarpa /Eriosyce napina ssp. aerocarpa to compare with

Two other flowers came up today
P. tuberosus Pterocactus spec. HPT793, Fiambala

Hello Dave , thanks again for the great illustration of this species´ concept with the habitat pictures by RMF. The plants body in the second one is perfectly hidden in the gravel.- Great mimikry. Thelocephala malleolata WM013 (yellow) flowered today again Eriosyce krausii WM013 (Th. malleolata) 201...

@ DaveW: thank you very much for the inquiry about E. krausii (Kattermann). Its too bad the Ritter books are in B/W, I ´ll have a look at the books by Ritter , Kattermann and Hoffman/Walter for comparison when I´m home again tomorrow. So the cream colored species might be inside the Katterman concep...