Loxanthocereus sextonianus

Loxanthocereus sextonianus is a species of Loxanthocereus found in Peru.

Loxanthocereus sextonianus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Loxanthocereus
Species:
L. sextonianus
Binomial name
Loxanthocereus sextonianus
(Backeb.) Backeb.
Synonyms
  • Borzicactus sextonianus (Backeb.) Kimnach 1960
  • Cleistocactus sextonianus (Backeb.) D.R.Hunt 2003
  • Echinopsis sextoniana (Backeb.) Mayta 2015
  • Erdisia sextoniana Backeb. 1936
  • Borzicactus gracilis (Akers & Buining) Buxb. & Krainz 1962
  • Borzicactus gracilis var. aticensis (Rauh & Backeb.) Krainz 1962
  • Cereus sextonianus Backeb. 1933
  • Cleistocactus sextonianus (Backeb.) D.R.Hunt 1991
  • Loxanthocereus aticensis Rauh & Backeb. 1956 publ. 1957
  • Loxanthocereus gracilis (Akers & Buining) Backeb. 1958
  • Loxanthocereus nanus Backeb. 1956 publ. 1957
  • Loxanthocereus puquiensis F.Ritter 1981
  • Loxanthocereus splendens Backeb. 1956 publ. 1957
  • Loxanthocereus variabilis F.Ritter 1981
  • Maritimocereus gracilis Akers & Buining 1950

Description

Loxanthocereus sextonianus grows as a shrub with mostly prostrate, underground shoots and reaches lengths of up to 1.5 meters with diameters of 3 centimeters. There are about 13 ribs. The small areoles are close together. The thin, radiating spines are pink to yellow to brown and are difficult to distinguish between central and peripheral spines. The 1 to 3 central spines are up to 3 centimeters long, the 8 to 30 marginal spines are up to 5 millimeters long.

The heavily crooked, red flowers are 5 to 6 centimeters (rarely up to 8 centimeters) long. Its pericarpel and flower tube are loosely furred brown. The more or less spherical, green fruits reach a diameter of 1.5 to 2 centimeters.[1]

Distribution

Loxanthocereus sextonianus is widespread in the Peruvian regions of Ica, Ayacucho and Arequipa at altitudes of 200 to 1500 meters.

Taxonomy

The first description as Erdisia sextoniana was made in 1936 by Curt Backeberg.[2] Myron William Kimnach placed the species in the genus Borzicactus in 1960.[3] Further nomenclature synonyms are Borzicactus sextonianus (Backeb.) Kimnach.(1931), Cereus sextonianus Backeb. (1933), Cleistocactus sextonianus (Backeb.) D.R.Hunt (2003), Echinopsis sextoniana (Backeb.) Mayta (2015).

References
  1. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 125. ISBN 3-8001-4573-1.
  2. "Au Cactus Francophone :". Au Cactus Francophone (in French). Retrieved 2023-10-25.
  3. "Cactus and Succulent Journal May-June 1960: Vol 32 Iss 3 : Free Download, Borrow, and Streaming : Internet Archive". Internet Archive. 2023-03-25. Retrieved 2023-10-25.
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