Mammilaria?

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Mrs.Green
Posts: 1085
Joined: Fri Oct 23, 2020 5:59 pm

Mammilaria?

Post by Mrs.Green »

Found this plant not long ago. I belive it’s a Mamm but I’m not sure.. It is something familiar about it but after days of searching on the net, maybe someone recognizes it? The flowers seems to have been white, cream or light yellow and it has two green fruits. As seen on the pics, one of the heads have shorter spines. Not sure if it’s because of light starvation, ( as seen the body of the plant seems to have received little light) or if it is its ‘natural’ spination.
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greenknight
Posts: 4823
Joined: Tue Apr 30, 2013 4:18 am
Location: SW Washington State zone 8b

Re: Mammilaria?

Post by greenknight »

Mammillaria decipiens subsp. camptotricha.

That pale color in the axils isn't so much from lack of light, you see that on Mammillarias when they plump up after being shrunken from dehydration. It does look like that one offset has been on the shaded side of the plant for a while, though - the older spines on it are longer, so light deprivation is probably responsible for the shorter new spines.
Spence :mrgreen:
DaveW
Posts: 7396
Joined: Thu Dec 20, 2012 2:36 pm
Location: Nottingham, England/UK

Re: Mammilaria?

Post by DaveW »

Looks like the cultivar of Mammillaria camptotricha known as 'Madam-Marnier' or 'Marnier-Lapostolleii'. The Marnier's (Mar-nee-ay's being French) had a large collection years ago and even employed Curt Backeberg as curator for a time. Their family made their fortune out of the orange flavoured spirit "Grand Marnier".

https://www.llifle.com/Encyclopedia/CAC ... am_Marnier

Incidentally, unlike the rendering in the link below a cultivar unlike a species should technically be written in single quotes with the first letters capitalised as with a genus and not italicised, for instance as Mammillaria camptotricha 'Marnier-Lapostollei' . However although formal journals usually italicise plant names to follow the Botanical Code few of us bother on Forums or even plant labels..

https://www.cactus-art.biz/schede/MAMMI ... tollei.htm

https://www.cactuspro.com/encyclo/Marni ... le--Julien
Mrs.Green
Posts: 1085
Joined: Fri Oct 23, 2020 5:59 pm

Re: Mammilaria?

Post by Mrs.Green »

Thank you very much Greenknight and DaveW 🙂 I certainly looks like ‘Marnier-Lapoststolleii’. Hopefully it will flower next year. The green fruits got me thinking. Why does some cacti have very visible fruits in bright colours (as red) and others have more ‘bland’ fruits? My guess it is can have something to do with how the fruits and/ or rather seed are ‘intended’ for. If you rely on birds e.g. to spread your seeds, higly visible fruits make sense.
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