Tetracoccus (plant)
Tetracoccus is a plant genus under the family Picrodendraceae. Shrubby-spurge is a common name for plants in this genus.
| Tetracoccus | |
|---|---|
 | |
| Tetracoccus dioicus | |
Scientific classification  | |
| 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 | |
| Synonyms[1] | |
|
Halliophytum I.M.Johnst. | |
It was first described in 1885 by Charles Christopher Parry.[2][3] 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][4][5][6][7]
Species
Species include:[1]
- Tetracoccus capensis (I.M.Johnst.) Croizat — endemic to Baja California Sur state (México).[8]
- 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
- Kew World Checklist of Selected Plant Families
- Parry, Charles Christopher. 1885. West American Scientist 1(3): 13–14
- Tropicos
- Biota of North America Program 2013 county distribution maps
- 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.
- 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.
- "Tetracoccus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 8 December 2015.
- Tropicos.org: Tetracoccus capensis
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