Sulcorebutia aff. krainziana?

[BarryRice]

Hey guys

Here's a recent purchase from a cactus show vendor (Bill Munkacsy, Planta Seca). Bill calls this plant Sulcorebutia aff. krainziana. The "aff." part means, if memory serves, affinis, and means the plant seems related to.

Bill said that both he and Elton Roberts refer to this plant this way. Do you folks have thoughts about the plant? Sorry I don't have a better flower photo.

[vlani]

Sulcorebutia aff. krainziana is a meaningless combination ))

[CoronaCactus]

Rebutia krainziana as i know it is a spineless plant, or they are extremely short it appears spineless with bright red/orange flowers. I don't see any thing in common with your plant. I'm certainly no Rebutia/Sulco expert, but it's more affinis to canigueralii than krainziana to me.

[DaveW]

A search of the Web brings up no Sulcorebutia krainziana, so evidently a name somebody just dreamed up. Maybe originally Sulcorebutia sp. Krainz?

Hans Krainz, 1906-1980, was director of the State Succulent Collection in Zurich, Switzerland.

[BarryRice]

Hmm. Well, instead of doing forensics on the name stuck on my label, what do you think is a likely identity for the plant?

B

[CoronaCactus]

No Sulcorebutia krainziana, but there is a Rebutia krainziana.
http://www.cactus-art.biz/schede/REBUTI ... nziana.htm" onclick="window.open(this.href);return false;



Sulcorebutia steinbachii?
http://www.cactus-art.biz/schede/SULCOR ... bachii.htm" onclick="window.open(this.href);return false;

Sulcorebutia canigueralii var. applanata?
http://www.cactus-art.biz/schede/SULCOR ... lanata.htm" onclick="window.open(this.href);return false;

[BarryRice]

Hey Guys,

I'm still wondering about this mystery plant. It's scorchingly hot today, and it decided it is a good day to flower. Sorry about the shadow on the plant in the first photo, it's so bright, I couldn't see my phone screen clearly! The second photo was taken in more diffused light.

You might see "canigueralii" on the tag---that's based upon previous discussions of this plant here!

[greenknight]

I'd say it fits R. steinbachii better. Cactus Art describes S. canigueralii's central spines: "None or 1 to 2 ± distant and erect, whitish with darker base", which isn't like this one at all. Rebutia steinbachii is highly variable, I think this one falls well within its range.