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 Mammillaria melanocentra

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wiebe
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PostSubject: Mammillaria melanocentra   Mon Apr 09, 2012 9:29 am

Both of the plants illustated below are labelled M. melanocentra. First one, without collection data, is in my opinion 'typical' for M melanocentra with its spination and flower colour. The second one, GM 849 (Rep 249) is not typical with a flower colour that is different from the typical colour. Flower colour does fit with the description of the ssp. linaresensis but spination does not. Any thoughts on these?

Wiebe



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jfabiao

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PostSubject: Re: Mammillaria melanocentra   Mon Apr 09, 2012 9:53 am

I would say the second plant is some form of M. heyderii, but what do I know...
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maurillio



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PostSubject: Re: Mammillaria melanocentra   Mon Apr 09, 2012 7:20 pm

some different flowers in m.melanocentra

mammillaria melanocentra BZ 59
from huasteca canyon - nuevo leon






mammillaria melanocentra var.rosea REP 1218a
los muertos - nuevo leon



mammillaria melanocentra Z 30
from huasteca canyon - nuevo leon







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woltertenhoeve



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PostSubject: Re: Mammillaria melanocentra   Tue Apr 10, 2012 8:40 pm

In the Reppenhagen field list Rep 249 is listed as M. dioica, so there must be something wrong with the number of Wiebe's white-flowering plant.
In the loose-leaf collection of the AfM, Thomas Linzen states that around Grutas de Garcia one can find melanocentra plants with cream-yellow flowers.

Wolter ten Hoeve.
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Robby

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PostSubject: Re: Mammillaria melanocentra   Fri Apr 13, 2012 12:42 pm

REPPENHAGEN had his own classification of the genius Mammillaria. In his system every taxon has a number (no fieldnumber). In his book of 1987 we find under number 249 M.lloydii. Later in 'Die Gattung Mammillaria' of 1991 number 249 is M.melanocentra and lloydii becomes No. 254.
I think this clarify the problem with this number. The plant of Wiebe might be M.lloydii sensu Reppenhagen.
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