Cephalocereus columna-trajani
| Cephalocereus columna-trajani | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Cephalocereus |
| Species: | C. columna-trajani
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| Binomial name | |
| Cephalocereus columna-trajani | |
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List
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Cephalocereus columna-trajani is a species of cactus from Mexico.
Description
[edit]Cephalocereus columna-trajani grows with non-branching green shoots and reaches heights of 6 to 10 meters with diameters of up to 40 centimeters. There are 16 to 26 ribs, which are almost completely divided into cusps by transverse furrows. Abundant white, silky hairs emerge from the white areoles near the tip of the shoot. The 5 to 8 downward-facing, stiff central spines are grayish and up to 8 centimeters long. The 14 to 18 white marginal spines are up to 1 centimeter long. The clearly lateral, narrow, 2 to 3 meter long pseudocephalium extends to the top of the shoot and is usually directed north. It consists of yellowish, woolly hairs 4 to 6 centimeters long.
The tubular to bell-shaped flowers are white to light yellow and have a length of up to 7.5 centimeters and the same diameter.[3]
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seedling -
Spines -
Small Plant -
Skin -
adult plant
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Distribution
[edit]Cephalocereus columna-trajani is found in xerophyllous scrub habitat in the Mexican states of Oaxaca and Puebla at elevations between 600 and 1800 meters, where it forms dense forests. Plants are found growing along with Cephalocereus tetetzo, Coryphantha pallida, Mammillaria haageana and Mammillaria mystax.[4]
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Habitat in near Tehuacán, southeastern Puebla state, Central México. -
Habitat in Zapotitlan De Las Salinas, Puebla
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Taxonomy
[edit]The first description as Cereus columna-trajani was published in 1837 by Ludwig Georg Karl Pfeiffer.[5] The specific epithet columna-trajani comes from Latin, means 'Trajan's Column' and refers to the stately nature of the species. Karl Moritz Schumann placed the species in the genus Cephalocereus in 1897.[6] Further nomenclature synonyms are Cephalophorus columna-trajani (Karw. ex Pfeiff.) Lem. (1831), Pilocereus columnatrajani (Karw. ex Pfeiff.) Lem. (1839), Cephalocereus columna (Karw. ex Pfeiff.) K.Schum. (1894), Pachycereus columnatrajani (Karw. ex Pfeiff.) Britton & Rose (1909), Mitrocereus columna-trajani (Karw. ex Pfeiff.) Backeb. ex E.Y.Dawson (1948) and Haseltonia columna-trajani (Karw. ex Pfeiff.) Backeb. (1960).
References
[edit]- ^ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2009-04-29. Retrieved 2023-10-30.
- ^ "Cephalocereus columna-trajani (Karw. ex Pfeiff.) K.Schum". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 21 October 2024.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 100. ISBN 3-8001-4573-1.
- ^ "Cephalocereus hoppenstedtii". LLIFLE. 2013-08-04. Retrieved 2024-08-07.
This article incorporates text from this source, which is available under the CC BY-SA 3.0 license.
- ^ Pfeiffer, Ludwig Georg Karl (1837). Enumeratio diagnostica cactearum hucusque cognitarum /auctore Ludovico Pfeiffer. Berolini: L. Oehmigke. doi:10.5962/bhl.title.15207.
- ^ 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
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Media related to Cephalocereus columna-trajani at Wikimedia Commons
Data related to Cephalocereus columna-trajani at Wikispecies
