Mammillaria schiedeana var. dumetorum (J.A.Purpus) Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 53: 143. 1981.

Nomenclatural References

• person : Charles Edward Glass (1934-1998) Based on occurrence of standard abbreviation 'Glass' in the authors string.
• person : Josef Anton Purpus (1860-1932) Based on occurrence of standard abbreviation 'J.A.Purpus' in the authors string.
• person : Robert Alan Foster (1938-2002) Based on occurrence of standard abbreviation 'R.A.Foster' in the authors string.