90 MISCELLANEOUS CIRCULAR 92, U. S. DEPT. OF AGRICULTURE 



*Quercus rubra pagodsefolia (Elliott) Ashe. Swamp Red Oak. 



Range. — From Maryland (Queen Annes County) and southern Virginia to 

 northern Florida, and westward in the Gulf States and Arkansas to southern 

 Missouri, Texas (San Jacinto and Trinity Rivers), western Tennessee and Ken- 

 tucky, southern Illinois and Indiana. 



Note on nomenclature. — Formerly considered specifically distinct from 

 Quercus rubra Linnaeus, when it was designated as Quercus pagodsefolia (Elliott) 

 Ashe. 



NAMES IN USE 



Red Oak (N. C. trade, in part). Spanish Oak (N. C). 



Swamp Spanish Oak (lit.). Swamp Red Oak. 



Quercus rubra leucophylla Ashe. 71 Swamp Red Oak. 



Range. — Occurs in the coast region of Virginia and southward to northern 

 Florida and westward in the Gulf States to eastern Texas and northward to 

 northern Arkansas; southern Illinois and Indiana. 



NAME IN USE 



Swamp Red Oak 



X Quercus sudworthii Trelease. Hybrid. 



Range. — Known only from specimens collected in 1888 by D. M. Coffman 

 from a tree growing near Covington, Tennessee. 



Note on nomenclature. — Formerly designated as Quercus digitataXvelutina 

 Sudworth, and supposed to be a hybrid between Quercus rubra Linnaeus and 

 Quercus velutina La Marck. Quercus willdenoviana Zabel, believed in Europe 

 (Fide C. S. Sargent) to be a hybrid between Quercus rubra Linnaeus and Quercus 

 velutina La Marck, is apparently this form. 



X Quercus ludoviciana Sargent. Hybrid. 



Range. — One tree now known was discovered in Peteville, 10 miles west of 

 Opelousas, St. Landry Parish, La. 72 



Note on nomenclature. — Believed to be a hybrid between Quercus rubra 

 pagodxfolia (Elliott) Ashe and Quercus phellos Linnaeus. 



* Quercus marilandica Muenchhausen. Blackjack Oak. 



Range. — From New York (Forbells Landing and Pine Island, Long Island) 

 through northern Ohio, Indiana, Illinois, and southern Michigan (Ann Arbor 

 and Lansing) to southeastern Nebraska, central Kansas, Missouri, Arkansas, 

 and Oklahoma; south to. Florida and west to Texas (Callahan County). 



Note on nomenclature. — Formerly designated as Quercus nigra of authors, 

 not of Linnaeus. 



NAMES IN USE 



Black Jack (Pa., Del., Md., W. Va., Black Oak (Ark., Wis., N. C, Okla.). 



Ky., N. C, S. C, Ga., Ala., Miss., Barren Oak (Kans., Tenn., Iowa). 



La., Tex., Ark., Mo., 111., Ind., Barrens Oak (Fla.). 



Kans., Nebr., Mich., Iowa, S. Dak.). Scrub Oak (S. C). 



Jack Oak (N. Y., W. Va., Miss., Tex., Ridge Oak (Ky.). 



Mo., Iowa, Ohio, 111., Kans., Nebr.). Black Jack Oak (N. C). 

 Iron Oak (Tenn.) . ■ 



Quercus marilandica ashei Sudworth. Blackjack Oak. 



Range. — Central Texas through middle Oklahoma to central Kansas (Riley 

 County) . 



71 Formerly considered an extreme form of Quercus rubra pagodsefolia (Elliott) Ashe, from which it differs 

 in the distinctly different shape of the leaves in the upper and lower parts of the crown. 

 » Fide C. S. Sargent. 



