In my collection I have seedlings grown from seed from Koehres with the name of Mammillaria spec Machuca. It is now in flower. Though the plants looks a bit like M senilis flowers are completely different. Any ideas on its identity?

Wiebe

I believe it is Mammillaria manana (species discovered by Fitzmaurice). My two M. manana are similar to your ones.

Have a look on Mammillarias.net under the name manana, discribed by the FitzMaurices, but found by Mr. Machuca.
Paul

Thanks!

Wiebe

Yes, I believe that the Fitz Maurices published the plant under the name of machucae, and then realised that they had described the wrong plant so did it again, this time under the name of manana.

M.manana was described by the fitz Maurice's in the British Cactus and Succulent Society Jounal, March 2006, page 7.

It was found by Antonio Machuca south of Laguna Chapala, in the state of Jalisco and is a member of the Stylothele, M.crinita group.

Hunt places it under M.fittkaui limonensis.

Thanks to the name I found the article in CactusWorld (did not yet read it). It might be self-fertile so I tried to self-pollinate it.

Wiebe

The pure white spined plant that mostly is the one in cultivation doesn't seem much like limonensis. However, it seems that there are other, darker spined forms as Hugo showed in this thread manana TL877.
So I think that there i smore to be learned yet about this species.

I would agreed with you that M.manana is nothing like either fittkaui or limonensis, which the Fitz-Maurice's maintain are both valid species. I have grown all three from seed and they are different from each other.
The Fitz-Maurice's use the term ' M.fittkaui complex ' which may better difine these three plants relationship.