Number of posts : 90 Age : 60 Location : The Netherlands Registration date : 2008-09-18
Subject: 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?
Number of posts : 420 Age : 55 Location : Lisbon, Portugal Registration date : 2010-05-25
Subject: 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...
Number of posts : 2672 Age : 65 Location : Modena - Italia Registration date : 2009-12-20
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.
Number of posts : 43 Location : Stuttgart, Germany Registration date : 2010-04-25
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.