Biology:Tetracoccus (plant)

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Short description: Genus of flowering plants

Tetracoccus
Tetracoccus dioicus 2.jpg
Tetracoccus dioicus
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Picrodendraceae
Tribe: Podocalyceae
Subtribe: Tetracoccinae
Genus: Tetracoccus
Engelm. ex Parry
Type species
Tetracoccus dioicus
Parry
Synonyms[1]

Halliophytum I.M.Johnst.

Tetracoccus is a plant genus under the family Picrodendraceae. Shrubby-spurge is a common name for plants in this genus. They are dioecious, often hairy shrubs.[2]

It was first described in 1885 by Charles Christopher Parry.[3][4] Its name means, from Greek "four seed" (tetra meaning "four" and kokkos, "kernel, grain").

Distribution

The genus is native to the southwestern United States and northern Mexico, with species in desert or chaparral habitats.[1][5][6][7][8]

Species

Species include:[1]

  • Tetracoccus capensis (I.M.Johnst.) Croizat — endemic to Baja California Sur state (México).[9]
  • Tetracoccus dioicus Parry — endemic to the Peninsular Ranges in northwestern Baja California state (México); and southern California (U.S.) within San Diego, Orange, and Riverside Counties.
  • Tetracoccus fasciculatus (S.Watson) Croizat — Mexico (Chihuahua, Durango, Nuevo León, and Puebla states).
  • Tetracoccus hallii Brandegee — Mojave Desert and Sonoran Desert in California, Nevada, and Arizona (U.S.), and Baja California state (México). Sometimes treated as a variety under T. fasciculatus.
  • Tetracoccus ilicifolius Coville & Gilman — endemic to Death Valley National Park, in the Mojave Desert and eastern Inyo County, California.

See also

  • Taxonomy of the Picrodendraceae

References

  1. 1.0 1.1 1.2 Kew World Checklist of Selected Plant Families
  2. "Tetracoccus in Flora of North America @ efloras.org". http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=132538. 
  3. Parry, Charles Christopher. 1885. West American Scientist 1(3): 13–14
  4. Tropicos
  5. Biota of North America Program 2013 county distribution maps
  6. Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.
  7. Martínez Gordillo, M., J. J. Ramírez, R. C. Durán, E. J. Arriaga, R. García, A. Cervantes & R. M. Hernández. 2002. Los géneros de la familia Euphorbiaceae en México. Anales del Instituto de Biología de la Universidad Nacional Autónoma de México, Botánica 73(2): 155–281.
  8. "Tetracoccus". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=TETRA2. 
  9. Tropicos.org: Tetracoccus capensis

External links

Wikidata ☰ Q9086403 entry