Mammillaria gaumeri

Mammillaria gaumeri (Britton & Rose) Orcutt , Cactography 7 7 1926. (Syn: Mammillaria heyderi subsp. gaumeri (Britton & Rose) D.R. Hunt; Neomammillaria gaumeri Britton & Rose);
 
 
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Mammillaria gaumeri from cactus Park Panchkula: Mammillaria gaumeri ????  from cactus Park Panchkula
It has written as Mammillaria gaumeri  there 
But i have some doubts on the specific epithet here

Mammillaria gaumeri

 
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