On my list, i have also the name M. vetula ssp. gracilis. According to Kuentz website, it is the correct name : http://www.kuentz.com/noms/mammillaria%20vetula%20subsp.%20gracilis.php And here : http://mammillarias.net/gallery/mammillaria_species.php?searchstring=gracilis&lg=uk Pulchella is cite...

On my label, I have Mammillaria gracilis var. pulchella

Apicra wrote: Eric, you need to read the small print .... Crassula brevifolia is a recognised species of Crassula and not the plant illustrated here.

What a shame !!! sorry, sorry !!

Yes, brevifolia is in the synonymy of rupestris ssp. commutata

It looks like Crassula rupestris ssp. commutata : http://www.crassulaceae.ch/de/artikel?a ... R&aID=4438 ...

Hope that helps. Of course ! Here I find forbesii in the synonymy of validus : http://www.kuentz.com/noms/cereus%20validus.php But here : http://www.cactusinhabitat.org/index.php?p=specie&id=196 and there : https://www.cactuspro.com/lecture/Lode-Joel/Cactus/page-94.html , this is validus in the...

I don't believe either it's a Pilosocereus...

More photos :

I can't do better for close up of stem : Flowers :

Hello, I've collected seeds of many cacti in a nursery and I have some doubt for the identification of a Cereus . The nurseryman tells me peruvianus and on his website the same plant is identified both as peruvianus and validus . After consultation of some web documents, I think it's validus. Do you...

Perhaps Rene's suggestion of a bigger pot is a good one. I agree. In my region, the related S. praealtum is often cultivated in full ground, and when it is in pot it loves great ones. Also, I have noted that this plant loves water (more than other stonecrops). Here S. dendroideum in ICN with notes ...

Thank you for this very usefull link : Haworthia & Co are very pretty genera... but very difficult too ! (to my opinion )