CHECK LIST OF FOREST TREES 113 



Ulmus serotina Sargent. 32 Red Elm. 



Range. — Range imperfectly known at present; known now, at different sta- 

 tions, only from southern Kentucky and Tennessee to northeastern Georgia, 

 northern Alabama, northwestern and southwestern Arkansas and eastern Okla- 

 homa; southern Illinois (Richland County.) 23 



NAMES IN USE 



Red Elm. September Elm (lit.). 



PLANERA Gmelin 



y 



Planera aquatica (Walter) Gmelin. Planer Tree. 



Range. — From North Carolina (Cape Fear River) to northern Florida, and 

 westward in the coast region through the Gulf States to Texas (Brazos and 

 Matagorda Counties); northward through western Louisiana, eastern Oklahoma ; 

 and Arkansas to southern Missouri, northeastern Mississippi, west Tennessee 

 (Brownsville), northern Kentucky, and Illinois (lower Wabash River). 



NAMES IN USE 



American Planetree (Ala.). Water Elm (Fla., La., Miss.). 



Planer Tree (N. C, S. C, Fla.. La., Svcamore (N. C). 

 Tex., Ark., Tenn.). Plene (La.). 



CELTIS Linnaeus 



*Celtis occidentalis Linnaeus. Hackberry. 



Range. — From New England to Virginia and westward to eastern North 

 Dakota, Iowa, southwestern Missouri, and western Kansas. As formerly under- 

 stood, the range of this species extended as far north as the St. Lawrence River, 

 as far west as western Washington, Oregon, Nevada, and New Mexico, and 

 southward into Florida, and to Missouri and eastern Texas. 



NAMES IN USE 



Hackberry (N. H., Vt., R. I., N. Y., One-berrv (R. I.). 



N. J., Del., Pa., N. C, W. Va., Mo., Hacktree (Minn.). 



111., Ind., Wis., Iowa, Kans., Mich., Bastard Elm (N. J.). 



Minn., S. Dak., Ohio, trade). False Elm. 



Sugarberry (N. Y., Pa., Del., Minn.). Nigger-pill. 



Nettle-tree (R. I., Mass., Del., Mich.). Beaverwood. 



Hoop Ash (Vt.). 



Celtis occidentalis canina (Rafinesque) Sargent. Hackberry, 



Range. — From Quebec to North Dakota, Iowa, eastern Nebraska, south- 

 western Missouri, western Oklahoma; southward in the East to eastern Massa- 

 chusetts, western New York, southern Ohio, southern Indiana, and Illinois; in 

 northwestern Georgia (Cobb County). 



Note on nomenclature. — Formerly included under Celtis occidentalis Lin- 

 naeus. Originally described as Celtis canina Rafinesque, which is maintained by 

 some authors. 



names in USE 



Bigleaf Hackberry (lit.) Hackberry. 



n The flowers of all of oar native elms, except Ulmus crassifolia Nuttall and Ulmm serotina Sargent, 

 appear in early spring, while the flowers of the latter species appear in the autumn. 



23 Britton and Shafer (North Am. Trees, 346, 1908) state that this elm occurs "in parts of Tennessee," 

 and Robert Ridgway has found an autumnal flowering elm in southern Illinois (vicinity of Olney) which 

 ia Ulmus serotina Sargent. 



