Please identify my new mammillarias

[vascat63]

Please identify my new mammillarias (left to right) which I brought from a nearby store.

Am more curious about the last two with silver-white spines.
Look like both are relatives and cousins .
Or are they same with different growth rate?

[vascat63]

No one replied..
Just wondering if these cactus are rare ??

Please help identifying them.

[teo]

Last one might be M. matudae.

First one maybe M. dixanthocentron

[Nic]

Second from left is muehlenpfordtii

[vascat63]

Second from left is muehlenpfordtii

Mic thanks for the ID.
My first one with golden long spines very much resembles M. muehlenpfordtii .

But quite recently, someone told me that the second from left is mammillaria celsiana..

Both muehlenpfordtii and celsiana looks same in Google images .

Any expert comments?

[vascat63]

Second from left is muehlenpfordtii

Mic thanks for the ID.
My first one with golden long spines very much resembles M. muehlenpfordtii .

But quite recently, someone told me that the second from left is mammillaria celsiana..

Both muehlenpfordtii and celsiana looks same in Google images .

Any expert comments?

Also as Teo mentioned it resembles M. dixanthocentron too.

Confused

[vascat63]

Last one might be M. matudae.

First one maybe M. dixanthocentron

Thanks Teo .

It does look similar to M. dixanthocentron.
But see my comments ..
It looks similar to M.celsiana and M. muehlenpfordtii ..

The last one looks very much same as M.matudae.

The second last i am thinking is M. Haageana. Or M . Dealbata .
Any thoughts?

[DaveW]

The reason why Mammillaria muehlenpfordtii and M. celsiana look the same is that they actually are the same species. M. muhlenpfordtii being the oldest name takes priority and M. celsiana becomes a synonym of it. Another name reduced to synonymy under M. muehlenpfordtii is M. neopotosina.

In the past the same species has often been named several times by different botanists until it was realised they were the same species, then in botany the oldest validly published name takes priority and all the others become synonyms of it.

See:-

http://www.llifle.com/Encyclopedia/SUCC ... enpfordtii

[vascat63]

The reason why Mammillaria muehlenpfordtii and M. celsiana look the same is that they actually are the same species. M. muhlenpfordtii being the oldest name takes priority and M. celsiana becomes a synonym of it. Another name reduced to synonymy under M. muehlenpfordtii is M. neopotosina.

In the past the same species has often been named several times by different botanists until it was realised they were the same species, then in botany the oldest validly published name takes priority and all the others become synonyms of it.

See:-

http://www.llifle.com/Encyclopedia/SUCC ... enpfordtii

Ok thanks for the info Dave