Mammillaria, Royal Cross

The differences between the subspecies are:
--ssp. karwinskiana; has medium yellow flowers with purpleish midviens; No central spi...Read Morenes and 6 radial spines.
--ssp. collinsii; has white flowers with deeper pinkish midveins; One central spine and 7 radial spines.
--ssp. beiselii; has white flowers with red tinted midveins; One central spine and 5-8 radial spines.
--ssp. nejapensis; also has white flowers with red tinted midveins, but the spines are larger and white and has much more wool; No central spines and 3-5 radial spines per areole.

Min. temp is 50F. Clumping, heads are 3" diameter. Water sparingly. Propogation is thru offsets and seeds. Used to be called: M. Collisii...Read More.
Red elongated red fruit is quite attractive.