CHECK LIST OF FOREST TREES 191 



Acer rubrum drummondii (Hooker and Arnott) Sargent.' Red Maple. 



Range. — Southern Illinois and Indiana, western Kentucky and Tennessee 

 to southeastern Missouri, Arkansas, eastern Texas, eastern Louisiana, and 

 western Mississippi. 



NAMES IN USE 



Drummond Maple (lit.). Drummond Red Maple (lit.). 



Red Maple. 



Acer rubrum tomentosum Kirchner. Red Maple. 



Range.— North Carolina (Biltmore); Georgia (vicinity of Augusta; also in 



maha River swamp, Liberty County); Florida — J* K. Small; Alabama 



(Flagstaff Mountain, Barclay; also at Mount Vernon, Mobile County — Chas 



Mohr); Mississippi (Panther Burn, Sharkey County); Texas (Larissa, Cherokee 



County); Oklahoma (near Page, Leflore County); Arkansas (near Little Rock). 



Note ox nomenclature. — As regards its range in Georgia and Florida, this 

 variety seems to have been included as a form of Acer drummondii Small (not 

 Hooker and Arnott). It was first described in 1886 as Acer rubrum var. tomen- 

 tosum Pax. 11 



name in use 



Red Maple 



Acer rubrum tridens Wood. 22 Red Maple. 



Range. — Not fully determined, but to be looked for within the range of the 

 species. Reported to occur from Massachusetts to Florida and westward to 

 southern Michigan (Cass County), Missouri, southeastern Oklahoma, and south- 

 western Arkansas, northern Louisiana, and eastern Texas (Harden and Cherokee 

 Counties) . 



NAMES IN USE 



Swamp Maple (N. C). Three-toothed Red Maple (lit.). 



Red Maple (lit.). 



*Acer negundo Linnaeus. Boxelder. 



Range. — From central New York and western New England, southward to 

 central Florida; westward to Minnesota, Iowa, eastern Kansas, Missouri, south- 

 eastern Oklahoma, and southwestern Arkansas (Big Creek), northern Alabama, 

 western Louisiana, and eastern Texas. 23 



NAMES IN USE 



Boxelder (Vt., Mass., R. I., Del., N. Y., Negundo Maple (111.). 



N. J., Pa., Va., W. Va., N. C, S. C, Red River Maple. 



Ala., Fla., Miss., La., Tex., Ark., Three-leaved Maple (Pa.). 



Mo., 111., Ind., Wis., Ohio, Mich., Black Ash (Tenn.). 



Iowa, Kans., Nebr., Minn.). Stinking Ash (S. C.). 



Ash-leaved Maple (R. I., Mass., N. J., Sugar Ash (Fla.). 



Pa., Del., Va., S. C, La., Tex., 111., Cut-leaved Maple. 



Wis., Iowa, Ont., Kans., Nebr., Mich., Maple-ash. 



Minn.) . 



*• A well-marked form of this variety with three-lobed leaves rounded at the base has been characterized 

 as Acer rubrum drummondii, forma rotundatum Sargent, which occurs in tbe central-western border region 

 of Louisiana (Natchitoches Parish); and in the southeastern border region (St. Tammany Pariah); also in 

 southeastern Texas (Jefferson County) and in southeastern Missouri (Butler County). 



» C. S. Sargent. Bot. Gaz., LVII, 236, 1919. 



» Torrey and Gray (Flor, N. A., I, 249, 1838) first referred to this variety as Acer rubrum /S, without 

 definitely naming it. It was distinguished for the first time as Acer rubrum var. tridens Wood (Class-Book 

 of Bot., 286, 1860), a name, however, which appears to have been generally neglected until 1902, when 

 Sargent (Silva N., XIII, II, 1902) revived it. In 1908, Britton and Shafer (North Am. Trees, 648, 190S) 

 adopted for it the name Acer carolinianum Walter (published in 17S8), which, although certainly applied 

 to a form of Acer rubrum Linnaeus, does not, in the writer's opinion, clearly refer to this variety. 



» The Boxelder is possibly native along the St. Lawrence River (near Montreal) and in eastern Ontario, 

 but it now seems probable that through planting it has become naturalized in that region. Formerly the 

 natural range assigned the Boielder extended somewhat farther north and very much farther west. In 

 the meantime also attempts have been made to separate extreme forms of this widely distributed and vari- 

 able tree into distinct species. The difficulty, however, of doing this successfully appears when the many 

 apparently connecting forms are carefully considered. It seems to the writer far more advisable to recog- 

 nize the eastern forms of Boxelder as typical -leer n*g u ndo and to treat the several extreme forms as varieties. 



56751°— 27 13 



