Field number : L 630
Collector : Alfred Bernhard Lau
Species : Thelocactus hexaedrophorus v. fossulatus 
Locality : Mexicó : San Luis Potosi (Villar 1700m) * Geocode
Date : 13-15/11/1973
Notes :
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Taxonomy of the Cactaceae - Joël Lodé = Thelocactus bicolor subsp. heterochromus
New Cactus Lexicon - David Hunt = Error : not found in the Database
The International Plant Names Index : https://www.ipni.org
Thelocactus ((K. Schumann) Britton & Rose 1922)
Thelocactus hexaedrophorus 
Semeurs de cactus
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