Mammillaria baumii

Mammillaria baumii Boed., Z. Sukkulentenk. 2: 238, f. 238 1926. (Syn: Mammillaria radiaissima Linds.);
 

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Mammillaria baumii from Delhi: Mammillaria baumii Boed. from Delhi, displayed at DU Flower Show in February, 2009

 

 

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Cactus flower for ID: This cactus flower is flowering on off the cactus in a pot.
Total size of flower is not more than 5 cm across.
May I request you to please help in ID this cactus. 

this is Mammillria baumii

   

 
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