First description by W A & Betty Fitz Maurice in Cactus World Vol. 24 (1) 2006
Body: Forming clusters of up to 10 stems, globose to somewhat columnar, heads to 5 cm in diameter and 10 cm high.
Roots: Fibrous, somewhat thickened.
Sap: With watery sap.
Tubercule: Somewhat angular, tapering toward the obtuse top; 6 - 7 mm long and in diameter. 13 x 21 spirals.
Axil: With varying amounts of tortuous wool., to 1,5 mm long and with up to 15 bristles to 15 mm long.
Radial spine: 16 - 22, subulate, straight, radiating, to 15 mm long, white, occasionally with brown tips.
Central spine: 4 - 8, subulate, straight, somewhat ascending, 1 spine descending and variably hooked, 10 - 20 mm long, light yellow to dark brown with bulbous yellow base.
Flower: Campanulate to funnelform, 15 mm long and 10 - 15 mm in diameter, deep pink with a darker pink midstripe, stigma lobes yellow.
Fruit: Flattened ellipsoidal, with up to 20 seeds, 6 - 13 mm long and 4 - 5 mm wide, white below, pink above.
Seed: Brownish black, 1,0 mm long and 0,8 - 0,9 mm wide
Habitat Substrate: Growing in cracks in vertical stone faces of brown volcanic rock.
Geographic Distribution: Mexico, Jalisco, in Laguna Chapala near Municipio Atarjea. Altitude: 1550 meter.
Comments: Founded by Antonio Machuca in 1995. The only known population consist of about 800 plants. Belongs in the stylothelae crinita group.
Bibliography: Cactus World Vol. 24 (1) 2006 p. 7 - 11