Cephalocereus tetetzo
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Cephalocereus
Species:
C. tetetzo
Binomial name
Cephalocereus tetetzo
(F.A.C.Weber ex J.M.Coult.) Diguet
Synonyms
  • Carnegiea tetetzo (F.A.C.Weber ex J.M.Coult.) P.V.Heath 1992
  • Cereus tetetzo F.A.C.Weber ex J.M.Coult. 1896
  • Neobuxbaumia tetetzo (F.A.C.Weber ex J.M.Coult.) Backeb. 1938
  • Pachycereus tetetzo (F.A.C.Weber ex J.M.Coult.) Ochot. 1922
  • Pilocereus tetetzo (F.A.C.Weber ex J.M.Coult.) F.A.C.Weber ex K.Schum. 1897
  • Pilocereus tetetzo var. cristata F.A.C.Weber 1897

Cephalocereus tetetzo is a species of cactus from Mexico.

Description

Cephalocereus tetetzo grows in a columnar shape with mostly branching shoots and reaches heights of up to 15 meters. A trunk with a diameter of up to 70 centimeters is formed. The gray-green shoots are 8 to 12 meters long and have a diameter of 18 to 30 centimeters. The 15 to 20 blunt ribs are slightly rounded. The central spine, which is usually single, is blackish and up to 5 centimeters long. The 8 to 13 blackish marginal spines are 1 to 2 centimeters long.

The bell- to funnel-shaped flowers appear near the tips of the shoots. They are whitish and 5 to 6 centimeters long. Its pericarpel and flower tube are covered with tubercles, scales, wool and bristles. The egg-shaped green fruits are up to 4 centimeters long and have thorns.[2]

Distribution

Cephalocereus tetetzo is distributed in the Mexican states of Puebla and Oaxaca.

Taxonomy

The first description as Cereus tetetzo (spelled "Cereus tetazo") was made in 1896 by John Merle Coulter.[3] The specific epithet tetetzo refers to the Spanish common name "Tetetzo". Léon Diguet placed the species in the genus Cephalocereus in 1928. Further nomenclature synonyms are Pilocereus tetetzo (F.A.C.Weber ex J.M.Coult.) F.A.C.Weber ex K.Schum. (1897), Cephalocereus tetetzo (F.A.C.Weber ex K.Schum.) Vaupel (1909), Pachycereus tetetzo (F.A.C.Weber ex K.Schum.) Ochot. (1922), Neobuxbaumia tetetzo (F.A.C.Weber ex J.M.Coult.) Backeb. (1938) and Carnegiea tetetzo (F.A.C.Weber ex J.M.Coult.) P.V.Heath (1992).

References

  1. ↑ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2009-04-29. Retrieved 2023-11-01.
  2. ↑ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 440. ISBN 3-8001-4573-1.
  3. ↑ States., United (1892). "Contributions from the United States National Herbarium". Smithsonian Institution Press. Retrieved 2023-11-01.
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