ID Mammillaria please.

Thanks.

I think it is M. moelleriana. There are cream flowered form of this also, sometimes called M. cowperae, but this look sot be like the normal species.

Thanks Chris43

Chris43 wrote:

I think it is M. moelleriana. There are cream flowered form of this also, sometimes called M. cowperae, but this look sot be like the normal species.

¿Y Bombycina?

I am not 100% certain that it is M. moelleriana, because the number of radial spines is on the low side for M. moelleriana. On the other hand, M. bombycina would be expected to have a more woolly appearance, but maybe, your plant is not in a very sunny position. Are there any field data attached to the plant?

Regards,

Wolter ten Hoeve.

woltertenhoeve wrote:

I am not 100% certain that it is M. moelleriana, because the number of radial spines is on the low side for M. moelleriana. On the other hand, M. bombycina would be expected to have a more woolly appearance, but maybe, your plant is not in a very sunny position. Are there any field data attached to the plant?

Regards,

Wolter ten Hoeve.

this has full sun avoiding the central hours

I must admit that I discounted M. bombycina on the basis that it looked a largish plant, and hadn't offset. M. bombycina does tend to offset very happily. On the side of M. bombycina is that it has the lower number of central spines, whereas the description of M. moelleriana calls for 8-10 centrals, though my own plants don't have anywhere near that many, typically about 6. Your plant appears to have at least up to 5, on some areoles.

If it offsets soon, then we'll know, as M. moelleriana doesn't offset, at least not anywhere near as readily as M. bombycina.

Chris43 wrote:

I must admit that I discounted M. bombycina on the basis that it looked a largish plant, and hadn't offset. M. bombycina does tend to offset very happily. On the side of M. bombycina is that it has the lower number of central spines, whereas the description of M. moelleriana calls for 8-10 centrals, though my own plants don't have anywhere near that many, typically about 6. Your plant appears to have at least up to 5, on some areoles.

If it offsets soon, then we'll know, as M. moelleriana doesn't offset, at least not anywhere near as readily as M. bombycina.

thanks Chris43

I agree with Chris that M. bombycina offsets readily, so if it does not produce offsets, it will be M. moelleriana (or a hybrid).
Attached are a few photos of some of my seed-grown moellerianas/cowperaes.
The first image is of M. moelleriana, about 30 years of age, 25 cm high and 11 cm diameter. It would have been even higher if its own weight had not caused it to bend and contract in the lower, not visible part. The third image is of a similar, marginally smaller plant, which looks as if it starts dichotomous division.
The second image is of a 19-year old M. moelleriana Lau 698.
The forth image is of a 20-year old M. cowperae P456.
The fifth image is of a 7-year old M. moelleriana from Sierra Organos. Flowercolour ranges from light pink to dark pink (as in this plant).

None of these plants has ever produced an offset.

Wolter ten Hoeve.

woltertenhoeve wrote:

I agree with Chris that M. bombycina offsets readily, so if it does not produce offsets, it will be M. moelleriana (or a hybrid).
Attached are a few photos of some of my seed-grown moellerianas/cowperaes.
The first image is of M. moelleriana, about 30 years of age, 25 cm high and 11 cm diameter. It would have been even higher if its own weight had not caused it to bend and contract in the lower, not visible part. The third image is of a similar, marginally smaller plant, which looks as if it starts dichotomous division.
The second image is of a 19-year old M. moelleriana Lau 698.
The forth image is of a 20-year old M. cowperae P456.
The fifth image is of a 7-year old M. moelleriana from Sierra Organos. Flowercolour ranges from light pink to dark pink (as in this plant).

None of these plants has ever produced an offset.

Wolter ten Hoeve.

Thanks, fantastics photos.