Field number : SH 1460
Collector : Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species : Thelocactus tulensis 
Locality : Mexicó : San Luis Potosi (La Hincada 1600m) * Geocode
Date : 05/03/1981
Notes :
together with Mammillaria surculosa
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Taxonomy of the Cactaceae - Joël Lodé = Thelocactus tulensis
New Cactus Lexicon - David Hunt = Thelocactus tulensis
The International Plant Names Index : https://www.ipni.org
Thelocactus ((K. Schumann) Britton & Rose 1922)
Thelocactus tulensis ((Poselg.) Britton & Rose 1923)
Semeurs de cactus