| Thelocactus conothelos | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Thelocactus |
| Species: | T. conothelos |
| Binomial name | |
| Thelocactus conothelos (Regel & Klein) Backeb. & F.M.Knuth | |
| Synonyms | |
| |
Thelocactus conothelos is a species of cactus endemic to Mexico. [1]
Thelocactus conothelos is a solitary, spherical cactus, growing 7 to 18 cm (2.8 to 7.1 in) in height and diameter. Its ribs are indistinct, with conical warts that are light green at the base and squared. The areoles are woolly and about 3 mm (0.12 in) wide. It has 7 to 20 glassy, ocher yellow to grayish radial spines, 8 to 12 mm (0.31 to 0.47 in) long, and 4 central spines that are 1 to 9 cm (0.39 to 3.54 in) long. The large, spreading flowers range from 4.5 to 6 cm (1.8 to 2.4 in) wide and vary in color from white to magenta. Fruits are 12 mm (0.47 in) long and 7 mm (0.28 in) in diameter, with dark reddish to black seeds. [2]
Accepted subspecies: [1]
| Image | Scientific name | Distribution |
|---|---|---|
 | Thelocactus conothelos subsp. argenteus(Glass & R.A.Foster) Glass | Mexico (Nuevo León) |
 | Thelocactus conothelos subsp. aurantiacus(Glass & R.A.Foster) Glass | NE. Mexico |
 | Thelocactus conothelos subsp. conothelos | NE. Mexico |
 | Thelocactus conothelos subsp. garciae(Glass & Mend.-Garc.) Mosco & Zanov. | Mexico (Tamaulipas) |
This species is native to Tamaulipas, Nuevo León, and San Luis Potosí, Mexico at elevations between 1200 to 2200 meters growing in shrubland and limestone slopes. Plants are found growing along Mammillaria candida , Mammillaria picta , Mammillaria formosa subsp. formosa, Mammillaria winterae , Turbinicarpus schmiedickeanus subsp. gracilis, Thelocactus bicolor , Astrophytum myriostigma and Echinocactus platyacanthus [3]
It was first described as Echinocactus conothelos in 1860 by Eduard von Regel and Edward Klein. [4] The name, derived from Greek, refers to the cone-shaped warts. In 1936, Frederik Marcus Knuth reclassified it as Thelocactus.
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Mammillaria glassii is a species of cactus native to Mexico. It comprises two subspecies: M. glassii subsp. glassii and M. glassii subsp. ascensionis. In its natural habitat, high in the mountains, it often grows on rocky slopes in the shade. It is grown as an ornamental plant, appreciated for its dense spines and pink flowers, which are especially large in the subsp. ascensionis.
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Thelocactus hexaedrophorus is a species of cactus. It is endemic to Mexico.
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Thelocactus leucacanthus is a species of cactus. It is endemic to Mexico.
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Thelocactus lausseri is a species of cactus endemic to Mexico.
Thelocactus multicephalus is a species of cactus endemic to Nuevo León, Mexico.
Thelocactus buekii is a species of cactus. It is endemic to Mexico.
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Media related to Thelocactus conothelos at Wikimedia Commons
Data related to Thelocactus conothelos at Wikispecies