Thelocactus matudae Sánchez-Mej. & A.B.Lau

국표에 없다.

Origin and Habitat: Nuevo Leon, Mexico.
Altitude: 800-1000 metres above sea level.
Habitat: It grows on gypsum soils. Various cacti and succulents such as Mammillaria candidaSN|9339]]SN|9015]], Mammillaria pilispinaSN|9015]]SN|9339]], Agave lechuguillaSN|568]]SN|23013]], Neolloydia conoideaSN|10089]]SN|10089]], Agave strictaSN|23013]]SN|568]], Yucca filifera, Dasylirion texanum grows nearby.

Synonyms:

• Thelocactus tulensis subs. matudae (Sánchez-Mej. & A.B.Lau) N.P.Taylor

Description: Thelocactus tulensisSN|1065]]SN|1065]] subsp. matudae is a globular cactus closely related to Thelocactus tulensisSN|1065]]SN|1065]] subsp. buekii, but with distinctive longer tubercles, higher spine number and larger flowers. Both taxa are subspecies of the very variable polymorphic Thelocactus tulensisSN|1065]]SN|1065]] which comprises innumerable geographical forms linked one to each others by populations of plants with intermediate characteristics. Such variations has led to establishment of several unnecessary names for this species.
Habit: Thelocactus tulensisSN|1065]]SN|1065]] subsp. matudae is a solitary geophyte stem succulent.
Stem: Depressed to globose 5-22 cm tall,11-16 in diameter, glaucous green to dark brown or magenta.
Ribs: Indistinct and completely divided into tubercles.
Tubercles: Broad, 1,5-3 cm long, conical more or less angular in cross section.
Areoles: 2-9 mm long, 2-6 mm wide, 12-35 mm apart, with partially developed grooves,
without extrafloral nectaries.
Central spines: 3 to 7 grey to reddish vertical and stright, up to 2 cm.
Radial spines: 7 to 12 radiatimg..
Root system: Fat underground tap root.
Flowers: Diurnal Bright purplish-pink to purple, up to 8 cm wide
Blooming season: Early summer.

Thelocactus matudae (llifle.com)