CHECK LIST OF FOREST TREES 105 



♦Quercus garryana Douglas. Oregon White Oak. 



Range. — From Vancouver Island and southwestern British Columbia (Lower 

 Fraser River) south through western Washington and Oregon and California 

 (coast valleys to Marin County). 



NAMES IN USE 



White Oak (Calif., Oreg.). Pacific White Oak (lit.). 



Oregon White Oak (Calif.). Western Oak. 



Pacific Post Oak (Oreg.). Prairie Oak (Wash., Oreg.). 



Oregon Oak (Oreg.). Garrv's Oak (lit.). 

 Western White Oak (Oreg., Wash.). 



*Queccus utahensis (A. de Candolle) Rydberg. 5 



Rocky Mountain White Oak. 



Range. — Extreme southwestern Wyoming (near the northwestern Colorado 

 line i to Utah, New Mexico, and Arizona. 



Note on nomenclature. — Formerlv designated as "Quercus gambelii Xut- 

 tall." 8 



NAMES IN USE 



Rockv Mountain White Oak (lit.). Mountain Oak. 



White Oak. 



Quercus utahensis submollis (Rydberg) Sudworth. 



Rocky Mountain White Oak. 



Range. — Nevada (low mountainous sections); Arizona (abundant on the 

 Colorado River Plateau; Santa Catalina, Santa Rita, Rincon, Huachuca, and 

 Chiricahua Mountains); and New Mexico (Animas Mountains). 



Note on nomenclature. — Formerly this variety was considered to be only 

 a phase of what was then thought to be Gambel's Oak, and was included under 

 Quercus gambelii Nuttall. Designated by some authors as Quercus subjnollis 

 Rydberg, and as Quercus utahensis var. mollis Sargent. It seems preferable, 

 however, to maintain this tree as a variety of the preceding species. 



NAME IN USE 



Rocky Mountain White Oak 



Quercus leptophylla Rydberg. Rocky Mountain White Oak. 



Range. — At present known only in Colorado (water courses in fertile canyon 

 bottoms; abundant in Huerfano County) and in New Mexico (Mogollon Moun- 

 tains in Socorro County) . The largest of Colorado oaks. 



Note on nomenclature. — Formerly included as a form of Quercus gambelii 

 Nuttall. 



names in use 



Colorado White Oak. Rocky Mountain White Oak. 



*Quercus stellata Wangenheim. Post Oak. 



Range. — From southern Massachusetts (near Brewster, Cape Cod, and 

 islands), Rhode Island, and Xew York (Long Island) to western Florida, southern 

 Alabama, and Mississippi; west from Long Island to southern Iowa, Missouri, 

 eastern Kansas, southwestern Arkansas, western and southeastern Oklahoma 

 (Rich Mountain), and central Texas (here south to San Antonio River). 



Note on nomenclature. — Formerly designated as Quercus minor (Marshall) 

 Sargent. 



• Quercus utahensis (A. de Candolle) Rydberg is based on Quercus stellata 6 utahensis A. de Candole, 

 published in 1864, which is the oldest tenable name applied to this oak. Use of the above binomial would 

 leem to be a violation of the International Code, but within the spirit of the American Code. 



• As now understood, Quercus gambelii Nuttall is not known to be arborescent. 



