Pterocereus is a monotypic genus of cactus containing the sole species Pterocereus gaumeri.[2]
| Pterocereus | |
|---|---|
_gaumerii.jpg)
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Echinocereeae |
| Genus: | Pterocereus T.MacDoug. & Miranda |
| Species: | P. gaumeri
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| Binomial name | |
| Pterocereus gaumeri (Britton & Rose) T.MacDoug. & Miranda
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| Synonyms | |
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Description
editPterocereus gaumeri grows tree-shaped with long, slender shoots, has little or no branches and reaches heights of up to 8 meters. It forms a trunk up to 1.5 meters high. The three to four very sharp-edged ribs look wing-like. The areoles on it are far apart from each other. The approximately ten thorns are gray or reddish black and up to 5 cm (2.0 in) long.
The cylindrical to funnel-shaped, greenish white flowers exude a foul-smelling scent. They open at night and are 8.5 to 9.5 cm (3.3 to 3.7 in) long. Its pericarpel and floral tube are covered with fleshy, leaf-like scales that have recurved tips, as well as some wool and a few bristles. The spherical fruits are light red.[3]
Subspecies
edit- Pterocereus gaumeri subsp. foetidus (T.MacDoug. & Miranda) S.Arias & Terrazas
- Pterocereus gaumeri subsp. gaumeri
Distribution
editPterocereus gaumeri is distributed in the Mexican states of Yucatán, Chiapas and Veracruz.
Taxonomy
editThe first description was made in 1920 by Nathaniel Lord Britton and Joseph Nelson Rose.[4] The specific epithet gaumeri honors the American botanist and naturalist George Franklin Gaumer (1850–1929), who discovered the species. Nomenclature synonyms are Anisocereus gaumeri (Britton & Rose) Backeb. (1942) and Pachycereus gaumeri Britton & Rose (1920). Taxonomic synonyms are Cereus yucatanensis Standl. (1930), Pterocereus foetidus T. MacDoug. & Miranda (1954), Anisocereus foetidus (T.MacDoug. & Miranda) W.T.Marshall (1957), Pachycereus foetidus (T.MacDoug. & Miranda) P.V.Heath (1992).[5]
References
edit- ^ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2009-04-27. Retrieved 2023-10-29.
- ^ "Pterocereus T.MacDoug. & Miranda". Plants of the World Online. Retrieved 2023-10-29.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. pp. 489–490. ISBN 3-8001-4573-1.
- ^ 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.
- ^ Korotkova, Nadja; Aquino, David; Arias, Salvador; Eggli, Urs; Franck, Alan; Gómez-Hinostrosa, Carlos; Guerrero, Pablo C.; Hernández, Héctor M.; Kohlbecker, Andreas; Köhler, Matias; Luther, Katja; Majure, Lucas C.; Müller, Andreas; Metzing, Detlev; Nyffeler, Reto; Sánchez, Daniel; Schlumpberger, Boris; Berendsohn, Walter G. (2021-08-31). "Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family". Willdenowia. 51 (2). Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin. doi:10.3372/wi.51.51208. ISSN 0511-9618. S2CID 237402311.
External links
edit
Data related to Pterocereus at Wikispecies
