Is this M. Petterssonii?

My mammillaria which I have labeled as M. petterssonii has bloomed and it's flower is MUCH lighter in color than those shown on the Internet for this mam.





Is it mislabeled or is it actually M. petterssonii?

Thanks

Richard

Richard,  take a closer look at apozolensis saltensis.


M. petterssonii L 1234


M. petterssonii L 1234


M. apozolensis saltensis

[quote="PVV1962"]Richard,  take a closer look at apozolensis saltensis.

OK
Looks just right and is apparently a synonym for M. patterssonii.

Thanks

Richard

Yes Vladimir is right! It’s always good to keep both names especially if authors have different opinions. Some authors say the var. saltensis belongs under Mam. pettersonii some others say it belongs to Mam. antesbergeriana. What is safe that this is the var. saltensis.

PVV1962 wrote:

M. petterssonii L 1234


M. petterssonii L 1234

Vladimir, your first two pictures show Mam. nacoriensis (bellisiana) a close relative to Mam. miegiana.
NO Mam. pettersonii.

Kind regards Jonathan

Wow! Thanks Jonathan.
Now I am the owner of a very rare plant!

To be more precise, I received it as Mammillaria petterssonii L1234A.
Does this make a difference?

Lau 1234 comes from east of Nacori Chico in Sonora. Lau writes: Mammillaria bellisiana (?). He adds that Hunt considers M. bellisiana as M. sonorensis, that the name bellisiana is dubious, but that the description of M. bellisiana fits more or less to Lau 1234.
Lau 1234a comes from Pinos Altos in Sonora, which lies in the Nacori Chico municipality. It should therefroe be closely related to Lau 1234.
This region in Sonora is far away from the petterssonii region and therefroe Lau 1234 / 1234a cannot be petterssonii, although they may look quite similar.

This again shows that plants from different regions can look very similar, yet be different species. Attaching a species name to a plant of unknown origin should be avoided!!!! Just label such a plant as Mammillaria sp. and if you still want to put a species name on the label, then add a big question mark to it.

Richard, what are the origins of your plant? It has much of the looks of M. apozolensis saltensis (which in my opinion fits better to M. petterssonii than to M. apozolensis), but the number of spines seems a bit too low and the flower colour seems a bit too pale for apozolensis saltensis. In the Huejuquilla region you can find plants which also look somewhat like apozolensis saltensis.


Wolter ten Hoeve.

Thank you Wolter.
I was looking at a map of Mexico.
Yes, L 1234 and A from Sonora. Pettersoni from Zacatecas. Pretty far away.

Additions:
Lau writes the following in his field list:
1234 Mammillaria bellisiana (?); Ser. Mammillaria; Sonorensis-group.
1234a Mammillaria sp.; Ser. Mammillaria; Petterssonii-group.

Why Lau puts his 1234 in the sonorensis group and his 1234a (from the same region) in the petterssonii group is unknown, but that's how the name M. petterssonii got attached to Lau1234a.

Wolter.