Cactus and Succulent Field Number

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Field number : L 20
Collector : Alfred Bernhard Lau
Species : Mammillaria fraileana f.  cactuspro.com
Locality : Mexicó : Baja California (Loreto , San Francisquito 1-30m)      * Geocode
Date : 13/11/1972
Notes :
together with L19, L21, Ferocactus townsendianus and Mammillaria poselgeri

Taxonomy of the Cactaceae - Joël Lodé = Mammillaria albicans subsp. fraileana
New Cactus Lexicon - David Hunt = Mammillaria albicans subsp. fraileana

The International Plant Names Index : http://www.ipni.org
Mammillaria (Haworth 1812)
Mammillaria fraileana