3 Mammillaria cacti IDs request

[fragrancecactii]

After i've read rules and now i have only request 3 IDs per thread,

ID would be appreciated for these mammillarias

One of my 4 mammillarias is already as "Mammillaria Elongata" (not pictured here) according to guide

[fragrancecactii]

These are last ones to identify then i'm all done with my plant ID requests

[anttisepp]

Mammillaria centricirrha (?)
M columbiana (?)
M discolor "Ginza Maru"

[fragrancecactii]

M discolor "Ginza Maru"

Yes it is Mammillaria discolor "Ginza Maru" it matches well with google Thanks!!

Mammillaria centricirrha (?)
M columbiana (?)

Hmmmm other first two showed doesn't match well with cacti pictured on google so "thinking"

[Lucy_V]

For the first one I could suggest M.karwinskiana, for the second - check M.rhodantha, M.pringlei or nivosa. When it blooms the flowers will help to narrow down the species.

[fragrancecactii]

For the first one I could suggest M.karwinskiana, for the second - check M.rhodantha, M.pringlei or nivosa. When it blooms the flowers will help to narrow down the species.

Right Mammillaria Karwinskiana yep, at least there's lots of different varieties of same species such as spine length, different areoles, Thanks!

hmmmm second one is probably going be hard without flower which sadly there's no currently buds on this plant but yes second one looks much closer to Mammillaria pringlei
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First: Mammillaria Karwinskiana
Second: maybe Mammillaria pringlei
Last: Mammillaria discolor "Ginza Maru"

[Tom in Tucson]

For the first one I could suggest M.karwinskiana, for the second - check M.rhodantha, M.pringlei or nivosa. When it blooms the flowers will help to narrow down the species.

Your suggestion for #1 looks quite likely.
As stated earlier #2 could be M. columbiana. Possibly ssp yucatanensis

[anttisepp]

Karwinskiana has mostly white spines and white hairs in axils.

[Lucy_V]

Karwinskiana has mostly white spines and white hairs in axils.

Agree about white spines in mature specimens and also in karwinskiana ssp.nejapensis. Spines on younger ones usually have brownish tips. white hairs also better develop in older karwinskiana plants imho.

[nachtkrabb]

hmmmm second one is probably going be hard without flower which sadly there's no currently buds on this plant but yes second one looks much closer to Mammillaria pringlei

...I wouldn't call #2 a pringlei. I know a couple of such plants, their spines are a lot thinner, longer and slightly curved.
N.

DSCN9770-45-MammRhodanthaPringlei.JPG (155.15 KiB) Viewed 179 times

[fragrancecactii]

Awww i see Could be No-ID or hybrid mammillaria ssp. then