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Location : Modena - Italia
Registration date : 2009-12-20
|Subject: Mammillaria rossiana Mon Jan 03, 2011 5:42 pm|| |
Reppenhagen resurrects this name, which has very dubious, circuitos origins, but Hunt refers it to Mammillaria duoformis.
Plants in circulation under this name about 40 years ago certaily owed a lot to m.duoformis, of which they were a somewhat thicker stemmed form.
Mammillaria - John Pilbeam pag.336
from "Giuse" Giuseppe Ruini collection - Rubiera