Field number : SH 1444 Collector : Dennis Sargant (plants collected by Alfred Bernhard Lau) Species : Mammillaria parkinsonii Locality : Mexicó : Queretaro (Vizarron 1400m) * Geocode Date : 04/10/1967 Notes :
together with Strombocactus disciformis, Thelocactus leucothelos v.schmolii, Lophophora diffusa, Mammillaria elongata