61 



White Elm (Ont.); Thomas Elm (Term.); Northern Cork-barked Elm 

 (Term.); Oorkbark Elm (N. Y.); Northern Cork Elm (Vt.)j Wahoo 

 (Ohio); Ohff Elm (Wis.); Corky White Elm. 

 Ulmus alata Michx. Wing Elm. 



Range — From southern Virginia to western Florida, and from southern Illinois 

 and Indiana through western Kentucky and Tennessee to the Gulf, and west through 

 southern Missouri, Arkansas, eastern Indian Territory, and Texas (to Trinity River). 



Names in use.— Winged Elm (N. C, S. C, Ark., Tex., 111., IncL); 

 Wahoo (W. Va., N. C, S. C, La., Tex., Ky., Mo.): Wahoo Elm (Mo.); 

 Witch Elm (W. Va.); Elm (W. Va.); Cork Elm (Fla., S. C., Tex.); 

 Water Elm (Ala.); Small-leaved Elm (N. C); Red Elm (Fla., Ark.); 

 Whahoo (S. C); Corky Elm (Tex.); Mountain Elm (Ark.). 



PLANERA Gmelin. 

 Planera aquatica (Walt.) Gmel. Planertree. 



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

 through southern Alabama and Mississippi to Texas (Trinity River); northward 

 through western Louisiana and Arkansas to southern Missouri, west Tennessee 

 (Brownsville), central Kentucky, and Illinois (to lower Wabash River). 



Names in use. — American Planetree (Ala.); Planertree (N. C, 

 S. C, Fla., La., Tex., Ark., Tenn.) ; Water Elm (Fla.) ; Sycamore (N. C; ; 

 Pleue (La.). 



CELTIS 1 Linn. 

 Celtis occidentalis Linn. Hackberry. 



Ra\GE. — From St. Lawrence River (St. Helens Island, near Montreal) to southern 

 Ontario; in the United States from Massachusetts (Massachusetts Bay) to north- 

 western Nebraska, North Dakota, southern Idaho (Boise City), eastern Washington 

 and Oregoii (Snake River), western Washington (Puget Sound), Nevada 2 (East 

 Humboldt Mountains), New Mexico, and south to Florida (Biscayne Bay and Cape 

 Romano), middle Tennessee, Missouri, eastern Kansas, Indian Territory, and eastern 

 Texas. 



Names m use. — Hackberry (N. H., Vt., E. I., N. Y., N. J., Del., Pa., 

 W Va., N. C, S. C., Ala., Fla., Miss., La., Tex., Ariz., Ark., Ky., Mo., 111., 



J Dr. J. K. Small has recently described the following new species, specimens of 

 which 1 have not seen : 



Celtis Georgiana Small (Bull. Torr. Bot. Club, vol. 24, p. 439, 1897). "A low species 

 ('diffuse shrub') related to C. pumila, from which it maybe distinguished by its 

 smaller, nearly acute leaves, the very short pedicels, and smaller tan-colored 

 drupes " North central Georgia (Yellow River Valley, near McGuire's mill in 

 Gwinnett County, and in vicinity of Stone Mountain). 



Celtis Helleri Small (1. c). A tree about 30 feet high and 3 feet in diameter, with 

 much-branched and wide-spreading crown. Bark of trunk and main branches with 

 corky warts. The leaves are described as " rather firm, the blades ovate to oblong, 

 4 to 7 cm. long, obtuse or acute, crenate-serrate, * rounded or subcordate at 



tLe base, * scabrous pubescent above, pale and tomentose beneath." 



Between San Antonio and San Antonio River, Texas. This tree appears to be very 

 closely related to Celtis occidentalis reticulata 



2 Shrubby variety, C. occidentalis pumila Gr., common from South Atlantic States 

 to Missouri, Colorado, Utah, and Nevada. 



