Mammillaria laui
| Mammillaria laui | |
|---|---|
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| In bloom | |
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| Individuals tend to form clumps over time | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Mammillaria |
| Species: | M. laui |
| Binomial name | |
| Mammillaria laui | |
| Synonyms[2] | |
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List
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Mammillaria laui is a species of cactus in the genus Mammillaria, native to Tamaulipas state in Mexico.[2] A number of subspecies were described, occurring along an elevation gradient; these are no longer accepted.[2] It is listed as Critically Endangered (CR) in the wild.[1]
Description
Mammillaria laui grows solitary in depressed, spherical or spurring shapes, reaching up to 6 centimeters (2.4 in) in height and 4.5 centimeters (1.8 in) in diameter. Its densely packed, bulbous-conical warts are dark green, non-lacerating, and may have sparse wool in the axils or be bare. The plant features 30 to 40 fine, bristle-like radial spines that are 4 to 8 millimeters long, glassy white, irregularly radiating, and protrude outward, covering the body. It also has 5 to 8 central spines, slightly thicker than the radial spines, measuring 6 to 7 millimeters long, protruding, and yellow with a bulbous, thickened base.
The flowers are broadly funnel-shaped, about the same diameter as the plant, and measure 1.6 to 2 centimeters in length. They are bright carmine pink. The whitish fruits are spherical to oblong, small (2 to 6 millimeters long), and contain black seeds.[3]
Distribution
This species is found between Ciudad Victoria and Jaumave in the Mexican state of Tamaulipas, where it inhabits mountainous regions between 800 and 1,700 meters (2,600 and 5,600 ft) elevation.[4]
Taxonomy
Mammillaria laui was first described in 1979 by David Richard Hunt. The name honors the German cactus researcher Alfred Bernhard Lau.[5]
As Mammillaria lauii it has gained the Royal Horticultural Society's Award of Garden Merit.[6]
References
- 1 2 Fitz Maurice, B, Fitz Maurice, W.A.; Hernández, H.M.; Sotomayor, M.; Smith, M. (2013). "Mammillaria laui". IUCN Red List of Threatened Species. 2013 e.T152864A687987. doi:10.2305/IUCN.UK.2013-1.RLTS.T152864A687987.en. Retrieved 11 May 2021.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - 1 2 3 "Mammillaria laui D.R.Hunt". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 11 May 2021.
- ↑ Anderson, Edward F. (2011). Das große Kakteen-Lexikon (in German). Stuttgart: Ulmer. p. 391. ISBN 978-3-8001-5964-2.
- ↑ "Mammillaria laui". LLIFLE. 2013-08-04. Retrieved 2025-06-15.
This article incorporates text from this source, which is available under the CC BY-SA 3.0 license. - ↑ Pilbeam, John (1999). Mammillaria. Holbury: Cirio. p. 161–163. ISBN 0-9528302-8-0.
- ↑ "Mammillaria lauii". The Royal Horticultural Society. 2021. Retrieved 11 May 2021.
External links
Media related to Mammillaria laui at Wikimedia Commons
Data related to Mammillaria laui at Wikispecies