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Taxon:  Corylus californica (A. DC.) Rose



Summary
Genus:
Corylus
Section:
Corylus
Subsection:
Siphonochlamys
Family:
Betulaceae
Subfamily:
Coryloideae
Nomen number:
434979
Place of publication:
Gard. & Forest 8:263. 1895
Verified:
03/23/2006 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Corylus rostrata Aiton var. californica A. DC.

Homotypic Synonym(s)
Corylus cornuta Marshall subsp. californica (A. DC.) A. E. Murray
Corylus cornuta Marshall var. californica (A. DC.) W. M. Sharp

No images
Reference(s)
  1. Erdogan, V. & S. A. Mehlenbacher. 2000. Interspecific hybridization in hazelnut (Corylus). J. Amer. Soc. Hort. Sci. 125:496. Note: crossing studies support treatment as variety of C. cornuta
  2. Erdogan, V. & S. A. Mehlenbacher. 2000. Phylogenetic relationships of Corylus species (Betulaceae) based on nuclear ribosomal DNA ITS region and chloroplast matK gene sequences. Syst. Bot. 25:735. Note: status unclear
  3. Erdogan, V. & S. A. Mehlenbacher. 2002. Phylogenetic analysis of hazelnut species (Corylus, Corylaceae) based on morphology and phenology. Sist. Bot. Dergisi 9:97. Note: could be a subspecies or a distinct species; needs further study
  4. FNA Editorial Committee. Flora of North America. 1993- Note: = C. cornuta subsp. californica (A. DC.) E. Murray
  5. Govaerts, R. & D. G. Frodin. World checklist and bibliography of Fagales. 1998 Note: = C. cornuta subsp. californica (A. DC.) E. Murray
  6. Mehlenbacher, S. A. & Bassil, N. 2006. pers. comm. via e-mail on 23 Mar Note: unpublished SSR evidence supports specific rank
  7. Molnar, T. J. 2011. Chapter 2. Corylus. Wild crop relatives: genomic and breeding resources, forest trees. 2011 15-48.
  8. Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource). http://www.plantnames.unimelb.edu.au/Sorting/Frontpage.html
  9. Rehder, A. Bibliography of cultivated trees and shrubs. 1949
Common names
English
California hazel –
Distribution
order_codeStatusContinentSubcontinentCountryStateNote
1NativeNorthern AmericaNorthwestern U.S.A.United StatesOregon 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesWashington 
1NativeNorthern AmericaSouthwestern U.S.A.United StatesCalifornia 
1NativeNorthern AmericaWestern CanadaCanadaBritish Columbias.w.
Native
Northern America
  • NORTHWESTERN U.S.A.: United States [Oregon, Washington]
  • SOUTHWESTERN U.S.A.: United States [California]
  • WESTERN CANADA: Canada [British Columbia (s.w.)]
Economic Uses
Human food


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.