Mammillaria tonalensis First description by Hunt, Cact. Succ. J. (GB) 41(4): 103 (1979)
John Pilbeam (1999) – Mammillaria The Cactus File Handbook – page 293.
Edward F. Anderson (2001) – The Cactus Family – page 447.
Pictures
Picture in the galery related to the keyword :
tonalensis
Mammillaria Tonalensis/Mammillaria tonalensis – ML 242 – Photo Michel Lacoste 1.jpg
Mammillaria Tonalensis/Mammillaria tonalensis – ML 242 – Photo Michel Lacoste 2.jpg
Mammillaria Tonalensis/Mammillaria tonalensis – Photo Aymeric de Barmon.jpg
Maps Distribution/Mammillaria tonalensis – distribution map.gif