Mammillaria ORCUTTII - Orcutt's mammillaria, Amajac mammillaria, Mammillaria AMAJACENSIS.
Mammillaria is a large genus of low-growing succulent plants in the cactus family (Cactaceae), comprising about 170-200 species distributed mainly in Mexico, as well as in the southern United States, Central America, the Caribbean region, and northern South America. In nature, representatives of the genus are found in deserts, semi-deserts, dry scrublands, tropical deciduous forests, on limestone slopes, rocky plains, and in mountainous areas with bright sun and well-drained soils.
The plants usually develop as solitary or clumping globose, depressed-globose, cylindrical, or short-columnar cacti. Instead of ribs, they have separate tubercles, or mammillae, at the tips of which are areoles with radial and central spines. In many species, wool, bristles, buds, flowers, and fruits form in the axils between the tubercles.
Flowers are usually formed in a ring closer to the apex of the stem and can be white, cream, yellow, pink, red, or purple. After pollination, elongated or club-shaped fruits develop, often red or pink, containing small brown or black seeds with a pitted or reticulate surface.
Orcutt's mammillaria is a miniature cactus with a cylindrical or elongated-globose stem that may remain solitary or form loose clusters with age. The tubercles are elongated; areoles are densely covered with thin white radial spines creating a fluffy covering. Central spines are 1-2, often hooked, darker and contrasting against the overall white pubescence. The coloration of the stem is light green, but almost invisible under dense spines.
Flowering is observed in spring and summer. Flowers are small, funnel-shaped, pink or mauve, with a paler tube, forming a ring in the apical zone. Fruits are elongated, bright red, containing small black seeds.
Orcutt's mammillaria originates from southern regions of California and northwestern Mexico, where it grows on slopes and in crevices among stones. The species tolerates solar exposure and drought well, making it a valuable subject for xeriscape culture.
The species is named in honor of the American botanist Charles Russell Orcutt, an explorer of the flora of the southwestern United States. It is popular thanks to its soft appearance, hooked spines, and profuse flowering, which is particularly striking against the snow-white covering of radial spines.