ID mammillaria

Anybody can ID this mammillaria?

Hi, (and welcome). Glad you could get the image posting to work.

My thoughts on this plant is that it might be a form of M. glassii v. ascencionis. Its a bit pale flowered, but I know there are pale flowered forms. It doesn;t offset as much as the type, and has rather larger heads. and longer central spines as well.

But I am not 100% certain, and hope others will offer their ideas.

Thanks, Cris.
I have some other ascensionis,(that are now hovering flower buds) smaller and its appearance is different (less hairy and central spine shorter), but yes, this could be one ascensionis.
Before I had my doubts. I favored some form of lasiacantha but long hairs and central spines also made ​​me doubt.
Nex days i will send som pics of mams (magallanis, denudata, lasiacantha...???). They began to bloom for two or three weeks.
Saludos.

I'm sure that it isn't M. magallani or lasiacantha. There is a form of M. glassii which was called siberiensis that is a large headed form, and doesn't offset much. It is quite hairy as well, so worth checking on.

It could be M. gasseriana (= viescensis), although the flowers seem a bit on the large side for that species.
I have added two photos of M. gasseriana in habitat near El Amparo, Coahuila, and these habitat plants look quite similar to your plant.

Wolter ten Hoeve, Assen, The Netherlands.

Thanks woltertenhoever. 'll remember.

Good one, Wolter. The habitat plants do look very similar, though the flowers certainly are a bit different, at least on the couple of viescensis that I have.

Hi Guys,

Just to throw another name into the ring... the plant at the start of this thread looks much like some plants that I had that were labelled M.pennispinosa nazasensis SB 489. I think I got them at Cactus show year's ago and they are no longer with me. I have a photo but am unable to post it.

Hi, First of all, if he is still connected to our forum, I'd like to say how nice it is to hear from Tam again. I hope this is not a one off and will participate in many more topics in the future.

Regarding the current topic I too had thoughts towards gasseriana, but felt the flower was somewhat different. Also, into my considerations was pennispinosa as well, with a flower nearer to the first picture. Derek

Hi Derek,

I've been looking in on regular basics but not posted. I have had a complete change in my situtation, but I am still growing these wonderful plants. I can only come and go has and when. I hope you will all understand.

Best Wishes to all.

Hola Tam:
Thanks for your opinion, but
I've been looking and Pealbeam says that both, pennispinosa as nazasensis, have spines feathery and pubescent.
In the photos I've seen of both species the overall look is as feathery , however, the spines of mine are fine and feathery.
Saludos.

It is difficult to tell from the photo whether the spines are pubescent or not, as nazacensis is supposed to show pubescence. However, the plant sthat I have (SB489 and TL773) dont show much pubescence if any at all. And ot be honest, though Pilbeam talks about pubescence, his bottom photo doesn't look like it has much either!

So, I can't really decide, and would like to wait until we see if there is any fruit, as that of nazacensis and gasseriana are not the same, nor is the seed, gasseriana being a dull grey black, and nazacensis being a bit more glossy black.