šµ Author(s) | Alwin Berger |
šµ Type | Roseocactus fissuratus |
Named for American botanist Joseph Nelson Rose (1862-1928). Berger: “Through the kindness of Dr. J. N. Rose, I was enabled to study various living and dried plants and to compare them with Engelmann’s Mammillaria fissurata [= Roseocactus fissuratus = Ariocarpus fissuratus] from Texas, cultivated at the New York State Experiment Station. I finally have come to the conclusion that there are indeed two distinct genera [Roseocactus and Ariocarpus], differing not only in the nature of the tubercles but also, and chiefly, in the origin of the flowers.”
Maarten H.J. van der Meer (2022 Feb 05). Roseocactus. Dictionary of Cactus Names. Retrieved from https://www.cactusnames.org/roseocactus