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Species of Juglans L. sect. Rhysocaryon

All
Accepted Names
Exclude infraspecific names

NameAccepted Nameai
Juglans arizonica Dode Juglans major (Torr.) A. Heller   
Juglans australis Griseb.  a 
Juglans boliviana (C. DC.) Dode  a 
Juglans brasiliensis Dode Juglans australis Griseb.   
Juglans californica S. Watson  a 
Juglans californica S. Watson f. quercina (Babc.) RehderJuglans californica S. Watson  i
Juglans californica S. Watson var. hindsii Jeps. Juglans hindsii (Jeps.) R. E. Sm.  i
Juglans californica S. Watson var. quercina Babc. Juglans californica S. Watson  i
Juglans columbiensis Dode Juglans neotropica Diels   
Juglans domingensis Dode Juglans jamaicensis C. DC.   
Juglans elaeopyren Dode Juglans major (Torr.) A. Heller   
Juglans guatemalensis W. E. Manning Juglans olanchana Standl. & L. O. Williams   
Juglans hindsii (Jeps.) R. E. Sm.  a 
Juglans hirsuta W. E. Manning  a 
Juglans honorei Dode Juglans neotropica Diels   
Juglans insularis Griseb. Juglans jamaicensis C. DC.   
Juglans jamaicensis C. DC.  a 
Juglans major (Torr.) A. Heller  a 
Juglans major (Torr.) A. Heller var. glabrata W. E. Manning  ai
Juglans major (Torr.) A. Heller var. major  ai
Juglans major (Torr.) A. Heller var. stewartii I. M. Johnst. Juglans microcarpa Berland. var. stewartii (I. M. Johnst.) W. E. Manning  i
Juglans microcarpa Berland.  a 
Juglans microcarpa Berland. var. microcarpa  ai
Juglans microcarpa Berland. var. stewartii (I. M. Johnst.) W. E. Manning  ai
Juglans mollis Engelm.  a 
Juglans neomexicana Dode Juglans major (Torr.) A. Heller   
Juglans neotropica Diels  a 
Juglans nigra L.  a 
Juglans nigra L. var. boliviana C. DC. Juglans boliviana (C. DC.) Dode  i
Juglans olanchana Standl. & L. O. Williams  a 
Juglans olanchana Standl. & L. O. Williams var. olanchana  ai
Juglans olanchana Standl. & L. O. Williams var. standleyi W. E. Manning  ai
Juglans peruviana Dode Juglans boliviana (C. DC.) Dode   
Juglans portoricensis Dode Juglans jamaicensis C. DC.   
Juglans pyriformis Liebm.  a 
Juglans rupestris Engelm. ex Torr. Juglans microcarpa Berland.   
Juglans soratensis W. E. Manning  a 
Juglans steyermarkii W. E. Manning  a 
Juglans subrupestris Dode Juglans microcarpa Berland.   
Juglans torreyi Dode Juglans major (Torr.) A. Heller   
Juglans venezuelensis W. E. Manning  a 
  1. Juglans arizonica Dode (=Juglans major (Torr.) A. Heller)
  2. Juglans australis Griseb.
  3. Juglans boliviana (C. DC.) Dode
  4. Juglans brasiliensis Dode (=Juglans australis Griseb.)
  5. Juglans californica S. Watson
  6. Juglans californica S. Watson f. quercina (Babc.) Rehder (=Juglans californica S. Watson)
  7. Juglans californica S. Watson var. hindsii Jeps. (=Juglans hindsii (Jeps.) R. E. Sm.)
  8. Juglans californica S. Watson var. quercina Babc. (=Juglans californica S. Watson)
  9. Juglans columbiensis Dode (=Juglans neotropica Diels)
  10. Juglans domingensis Dode (=Juglans jamaicensis C. DC.)
  11. Juglans elaeopyren Dode (=Juglans major (Torr.) A. Heller)
  12. Juglans guatemalensis W. E. Manning (=Juglans olanchana Standl. & L. O. Williams)
  13. Juglans hindsii (Jeps.) R. E. Sm.
  14. Juglans hirsuta W. E. Manning
  15. Juglans honorei Dode (=Juglans neotropica Diels)
  16. Juglans insularis Griseb. (=Juglans jamaicensis C. DC.)
  17. Juglans jamaicensis C. DC.
  18. Juglans major (Torr.) A. Heller
  19. Juglans major (Torr.) A. Heller var. glabrata W. E. Manning
  20. Juglans major (Torr.) A. Heller var. major
  21. Juglans major (Torr.) A. Heller var. stewartii I. M. Johnst. (=Juglans microcarpa Berland. var. stewartii (I. M. Johnst.) W. E. Manning)
  22. Juglans microcarpa Berland.
  23. Juglans microcarpa Berland. var. microcarpa
  24. Juglans microcarpa Berland. var. stewartii (I. M. Johnst.) W. E. Manning
  25. Juglans mollis Engelm.
  26. Juglans neomexicana Dode (=Juglans major (Torr.) A. Heller)
  27. Juglans neotropica Diels
  28. Juglans nigra L.
  29. Juglans nigra L. var. boliviana C. DC. (=Juglans boliviana (C. DC.) Dode)
  30. Juglans olanchana Standl. & L. O. Williams
  31. Juglans olanchana Standl. & L. O. Williams var. olanchana
  32. Juglans olanchana Standl. & L. O. Williams var. standleyi W. E. Manning
  33. Juglans peruviana Dode (=Juglans boliviana (C. DC.) Dode)
  34. Juglans portoricensis Dode (=Juglans jamaicensis C. DC.)
  35. Juglans pyriformis Liebm.
  36. Juglans rupestris Engelm. ex Torr. (=Juglans microcarpa Berland.)
  37. Juglans soratensis W. E. Manning
  38. Juglans steyermarkii W. E. Manning
  39. Juglans subrupestris Dode (=Juglans microcarpa Berland.)
  40. Juglans torreyi Dode (=Juglans major (Torr.) A. Heller)
  41. Juglans venezuelensis W. E. Manning


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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.

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