Origin of Name
Mammillaria bertholdii is a small remarkable cactus species found in nature in the Mexican state of Oaxaca by Andreas Berthold in 2013 and formally described by Thomas Linzen in 2014. The genus name 'Mammillaria' is derived from the Latin term 'mammilla', meaning nipple, a reference to the tuberculate structures typical of this genus.

Description of Plant
This particular Mammillaria species exhibits a globose to cylindroid morphology, typically forming clustered aggregations. The plant is characterized by its densely packed conical tubercles, which lack latex. The areoles at the tubercle tips give rise to radial spines, typically 18-22 in number, that are fine, white, and bristle-like, contributing to a plush appearance. The central spines, usually one to two per areole, contrast in their darker, more rigid nature. Mammillaria bertholdii 'Lizen' is noted for its annular floral display, with small, funnel-shaped blossoms in hues of crimson or pink, encircling the apex of the stem.

Origin of Plant
Originating from the arid regions of Mexico, Mammillaria bertholdii 'Lizen' is well-adapted to the semi-desert climates, thriving in habitats with rocky or limestone-rich soils. Its native range plays a significant role in its developmental adaptations.

Care Instructions
Cultivation of Mammillaria bertholdii 'Lizen' requires a well-draining substrate, preferably a specialized cactus mix, to emulate its natural rocky terrain. Optimal growth is achieved under bright, indirect light, with gradual acclimation to direct sunlight to avoid scorching. Watering should be moderate during the active growing phase, ensuring the soil dries completely between irrigation sessions. During the dormant winter period, watering should be significantly reduced. This species is cold-sensitive and should be protected from frost conditions. Regular maintenance involves the removal of any senescent plant material to maintain aesthetics and health.