Now that it's blooming

oldcat61 · Post by **oldcat61** » Wed Apr 09, 2014 10:16 pm

Now that it's blooming, can I assume this is spinosissima? Tried for an ID when first "rescued" but there were several suggestions. It's about 8 inches tall if that helps. Thanks, Sue

CactusFanDan · Post by **CactusFanDan** » Thu Apr 10, 2014 12:23 am

Yep, a Mamm. spinosissima form.

teo · Post by **teo** » Thu Apr 10, 2014 10:12 am

So, there are spinosissimas with hooked spines?

CactusFanDan · Post by **CactusFanDan** » Thu Apr 10, 2014 3:06 pm

I've seen a number of these with hooked spines and I always assumed they were spinosissima (or at least a form of it), but I'm not so certain now. They're quite widespread.

See if anyone else has any thoughts.

oldcat61 · Post by **oldcat61** » Thu Apr 10, 2014 9:36 pm

It does indeed have nasty hooked spines that I swear can jump out & grab you. And not just on top. That's what was confusing me - most of the online pix of spinosissima show straight spines. While we talking about IDs of stuff that is finally blooming - how about this little rebutia? Only found 2 on the Guide with pink flowers: mentosa is close but mine is naked, not fuzzy. Thanks, Sue

vlani · Post by **vlani** » Thu Apr 10, 2014 9:52 pm

Mentosa is misplaced into Rebutias, it is Sulcorebutia-Weingartia genus member, not closely related to Rebutias. It was a controversial move to combine two unrelated genera based on the 'we do not know' instead of 'we do know" reasoning.

Your plant is Rebutia proper, was known as 'R. violaciflora', is a form of R. minuscula.

oldcat61 · Post by **oldcat61** » Thu Apr 10, 2014 11:31 pm

Thanks, vlani, for the ID. Splitting & combining is very confusing - now we have the same plant with at least three different color flowers. That makes no sense. I do like the old name of "violaciflora"; think that's going on the tag. Sue

Dixie Chicken · Post by **Dixie Chicken** » Fri Apr 11, 2014 12:05 am

I wonder if number one could be Mammillaria magnifica?

http://cactiguide.com/cactus/?genus=Mam ... =magnifica" onclick="window.open(this.href);return false;

Just a guess.....

vlani · Post by **vlani** » Fri Apr 11, 2014 12:25 am

No

It is or just spinosissima or some untraced hybrid with spinosissima.
Young spinosissimas usually produce hooks, sometimes the pops have them. Older plants normally hookless.

Post by **DaveW** » Fri Apr 11, 2014 8:46 am

Sulcorebutia got its name because the areoles were in a sulcus or groove, unlike Rebutia sensu stricto:-

http://references-definitions.blurtit.c ... lcus-mean-" onclick="window.open(this.href);return false;

http://public.fotki.com/suleymandemir/s ... buc-6.html" onclick="window.open(this.href);return false;

http://public.fotki.com/suleymandemir/s ... chi-5.html" onclick="window.open(this.href);return false;

Eutow_Intermedium · Post by **Eutow_Intermedium** » Fri Apr 11, 2014 9:06 pm

Looks to me to be more of a Mammilaria Backebergii Ernestiana that has oddly got red hooked central spines. Flowers right for colour and stacked up to three rings high.

But what do I now , it could be another form of M. Spinosissima

Eleanor · Post by **Eleanor** » Fri Apr 18, 2014 10:37 pm

Just spotted this - my spinosissima has a fair number of hooked spines as well, I had been wondering if that was normal also.

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