Cacti identification thread

For the discussion of topics related to the conservation, cultivation, propagation and exhibition of cacti & other succulents.
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esp
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Re: Cacti identification thread

Post by esp »

Phil_SK wrote: Sat Jan 30, 2021 11:38 am I reckon there are maybe 9 sulco species. I have around 250 of them in my greenhouse :lol:
:smile:
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MatDz
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Re: Cacti identification thread

Post by MatDz »

Bump, the Gymno, Melo and Mammillaria could still use some identification/confirmation help!
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iann
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Re: Cacti identification thread

Post by iann »

That's a lot of spones for G, pflanzii and on quite a young plant, so I'd say it is going to grow up into G. saglionis. It will be obvious when it flowers, even more obvious when it gets to a foot across.

The Mammillaia isn't 'Toluca'. I don't even think it is M. polythele. Could it be a baby M. backebergiana or two?
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MatDz
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Re: Cacti identification thread

Post by MatDz »

That's a second vote for G. saglionis, G. saglionis it is then (until proven otherwise)!

On the Mam., when directly comparing M. backebergiana to M. polythele the number of spines seems to be an obvious difference and I agree it's more like the former. Shame, I was hoping for M. polythele, and now it's just on a wish list.

Thank you everyone!
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Re: Cacti identification thread

Post by discolover »

Hi Mat,
To me your Mammillaria seems to be Mammillaria mammillaris (old name M. simplex).
When it flowers, it should have small creamy flowers. The fruits are often more attractive then the flowers.

Peter.
Terry S.

Re: Cacti identification thread

Post by Terry S. »

B & Q is a UK do-it-yourself store with a gardening annex. There is no way that something like M. mammillaris would turn up there from a Dutch wholesaler.
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MatDz
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Re: Cacti identification thread

Post by MatDz »

I will add a comment about M. mammillaris with a lot of question marks, thank you both!
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Re: Cacti identification thread

Post by LHMBB »

MatDz wrote: Fri Jan 29, 2021 6:34 pm One more to go, but I'm completely lost on this one. Hopefully the fruit will help!

20210129_182732.jpg
This looks like M karwinskiana, or one of its varieties
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MatDz
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Re: Cacti identification thread

Post by MatDz »

A few more (I am doing my best to make this thread a "pinned" one!):

Mammillaria backebergiana (after a suggestion from a FB post):

Mammillaria sp. (spinosissima?)
Mammillaria sp. (spinosissima?)

Mammillaria bombycina (with not so healthy looking "waist"):

Mammillaria bombycina
Mammillaria bombycina

Gymnocalycium pflanzii:

Gymnocalycium pflanzii
Gymnocalycium pflanzii

Echinocactus grusonii:

Echinocactus grusonii
Echinocactus grusonii

(Something)Cereus sp.?

(Something)Cereus sp.?
(Something)Cereus sp.?

Mammillaria sp.? (note the amazing hooked spines!):

Mammillaria sp.?
Mammillaria sp.?
Last edited by MatDz on Wed Feb 03, 2021 12:02 am, edited 1 time in total.
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Re: Cacti identification thread

Post by MatDz »

PS: This is what's left of the first Mammillaria... The "shaft" was very soft, so I decided to do a surgery, judging by the colour it was the right decision.

20210202_230627.jpg
20210202_225445.jpg
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