Mammillaria gigantea
| Mammillaria gigantea | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Mammillaria |
| Species: | M. gigantea
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| Binomial name | |
| Mammillaria gigantea | |
| Synonyms | |
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Mammillaria gigantea is a species of cactus in the subfamily Cactoideae native to Mexico.[1] It is named for its large size.
Description
[edit]Mammillaria gigantea is a cactus that grows low and almost cake-shaped, often slightly sunken at the top, and covered in white wool felt. Its blue-green body is 9 to 10 cm high and 15 to 17 cm in diameter, with densely packed warts that produce milky juice. The axillae are covered with white wool. It has up to 12 small, fine-needle, straight white radial spines, each up to 3 mm long, and 4 to 6 strong, usually curved central spines, with the lowest one reaching up to 2 cm. New central spines are yellow-brown with dark tips, later becoming yellowish, white to horn-colored, and reddish at the base.
As with all Mammillaria, the flowers appear in a wreath. They are green-yellow and about 15 mm in diameter. The fruits are pink to greenish, and the seeds are brown.[2]
Distribution
[edit]Mammillaria gigantea is found in the mountainous regions of the Mexican states of Guanajuato, Durango, San Luis Potosí, and Querétaro, at altitudes between 1750 and 2400 meters.[3]
Taxonomy
[edit]It was first described in 1898 by Karl Moritz Schumann.[4] The specific epithet "gigantea" comes from Latin and means "enormously large," referring to the plant's size.[5]
References
[edit]- ^ a b Gómez-Hinostrosa, C.; Sánchez , E.; Guadalupe Martínez, J. & Bárcenas Luna, R. (2013). "Mammillaria gigantea". Retrieved 24 April 2015.
- ^ Anderson, Edward F. (2011). Das große Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 382. ISBN 978-3-8001-5964-2.
- ^ "Mammillaria gigantea". LLIFLE. 2013-08-04. Retrieved 2024-06-20.
- ^ Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). The Cactaceae : descriptions and illustrations of plants of the cactus family. Washington: Carnegie Institution of Washington. doi:10.5962/bhl.title.46288.
- ^ Schumann, Karl Moritz; Hirscht, Karl. (1899). Gesamtbeschreibung der Kakteen (Monographia cactacearum) /von Karl Schumann. Neudamm [Dębno, Poland?]: J. Neumann. doi:10.5962/bhl.title.10394.
External links
[edit]
Media related to Mammillaria gigantea at Wikimedia Commons
Data related to Mammillaria gigantea at Wikispecies
