Jepson Flora Project: Jepson Interchange for California Floristics    
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Quercus ×macdonaldii Greene
FAGACEAE
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Information from the Index of California Plant Names (ICPN)
Initial Editorial Analysis 18 Jan 2008
Source of Report for California The Jepson Manual [Ed. 1]
Initial Editorial Comments said in The Jepson Manual [Ed. 1] to possibly involve more than two parental spp., and therefore in need of further study
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 31 Aug 2004 e-mail from Jeff Greenhouse see Comment 1
Editorial Comments 1 Correspondence 1 indicates that Kevin Nixon [The Jepson Manual [Ed. 2] co-author of Quercus] and Cornelius H. Muller, in Flora North America 3:493 (1997) under their treatment of Quercus pacifica, state "Quercus X macdonaldii Greene ....is a stabilized hybrid complex between Quercus pacifica and Q. lobata Née."
Correspondence 2 Treatment and author notes submitted for The Jepson Manual [Ed. 2] by John M. Tucker see Comment 2
Editorial Comments 2 Correspondence 2 indicates that for The Jepson Manual [Ed. 2] Quercus macdonaldii Greene is to be treated as Quercus X macdonaldii Greene, and as native to CA.
Correspondence 3 Treatment and author notes submitted for The Jepson Manual [Ed. 2] by John M. Tucker see Comment 3
Editorial Comments 3 Correspondence 1 indicates that for The Jepson Manual [Ed. 2] Quercus X macdonaldii Greene is to be treated as a hybrid between Quercus lobata and Quercus pacifica, mentioned under the first parent but not treated otherwise.
Editorial Summary and Current Status
Editorial Summary addition, named hybrid
Current Status JFP-10, accepted name for taxonomically recognized and/or fertile hybrid; hybrid form of name
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 18 Jan 2008
List of names for this Current Status category
List of ICPN names in Quercus
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
Manual imageJepson eFlora
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Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
link image Jepson's "A Flora of California" (genus)
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Common names
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link image Tropicos Taxonomic information from the Missouri Botanical Garden
Calflora: Taxon report · Distribution · Observations
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link image RSA seed images
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link image JSTOR Plant Science

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