CHECK LIST OF FOREST TREES 



187 



Acer circinatum Pursh. Vine Maple. 



Range. — From the coast region of British Columbia south through Wash- 

 ington, Oregon, and California (to Mendocino Countv and upper Sacramento 

 River). 



NAMES IN USE 



Vine Maple (central and northern Mountain Maple. 

 Calif., Oregon — Willamette Valley). 



Acer glabrum Torrey." Dwarf Maple. 



Range. — California (Siskiyou Mountains and Sierras to the East Fork of the 

 Kaweah River in Kern County at high elevations) ; from Montana to Wyoming, 

 Colorado, Utah, Nevada, northern and southern Arizona (Santa Catalina and 

 Chiricahua Mountains) and New Mexico (Sacramento Mountains) ; extending 

 also into northwestern Nebraska and southwestern South Dakota (Black Hills, 

 Sioux County). 



NAMES IN USE 



Dwarf Maple (Oreg., Utah, Calif. 



Colo.). 

 Mountain Maple (Colo., Mont.). 

 Soft Maple (Utah). 



Shrubby Maple (Utah). 

 Bark Maple (Idaho). 

 Maple (Mont., Utah). 

 Rocky Mountain Maple (hort.). 



Acer glabrum douglasii (Hooker) Dippel. 



Dwarf Maple. 



Range. — Southern Alaska (upper end of Lynn Canal) in the coast region to 

 Vancouver Island and western Washington and eastward to eastern Oregon 

 (Blue Mountains), western Idaho and northern Montana; Wyoming (Natrona 

 County). 



Acer saccharum Marshall. 



Sugar Maple. 



Range. — From southern Newfoundland and Nova Scotia (along the St. 

 Lawrence and Saguenay Rivers. Lake St. John, and northern borders of Great 

 Lakes) to Lake of the Woods, Ontario, Minnesota, northeastern South Dakota. 

 Iowa, eastern Kansas, central and southeastern Oklahoma, southwestern Ar- 

 kansas and eastern Louisiana; south (through the Northern States and on the 

 Allegheny Mountains) to northern Georgia; west to eastern Nebraska, eastern 

 Kansas, and eastern Texas. 



names in use 



Sugar Maple (Me., N. H., Vt., Mass., 

 R. I., Conn., N. Y., N. J., Pa., Del., 

 Va., W. Va., N. C, S. C, Ala., La., 

 Ky., Mo., Ohio, 111., Ind., Iowa, 

 Kans., Nebr., Mich., Minn., Wis., 

 Ont.). 



Hard Maple (Vt., R. I., N. Y., N. J., 

 Pa., Va., Ala., Ky., N. C, Mo., 

 Kans., Nebr., 111., Ind., Iowa, Mich., 

 Ohio, Minn., Ont., trade). 



Sugar-tree (Me., Vt., R. I., Pa., Va., 

 N. C, W. Va., Ala., Miss., La., 

 Ark., Ky., Mo., 111., Ind., Ohio, 

 Kans.). 



Rock Maple (Me., Vt., N. H., Conn., 

 Mass., R. I., N. Y., Tenn., 111., 

 Mich., Iowa, Kans., Wis., Minn., 

 Ont.). 



Black Maple (Ky., W. Va., N. C). 



Sweet Maple (Ky.). 



Maple (W. Va., S. C, trade). 



Sugar (W. Va.). 



White Maple (trade). 



Rough Maple. 



» As here understood this variable species is made to include several different forms, as shown by vari- 

 ations in the size and form of the leaves and fruit, which have been treated by some authors as distinct 

 species. From a study of herbarium specimens alone, even of a large number, it is not difficult to be 

 convinced that some of these forms are specifically distinct. A long and careful field study of the.se forms 

 has, however, led the author to believe that they are not specifically nor varietally distinct. Acer triparti- 

 tum Nuttall, Acer Modocense Greene. Acer subserratum Greene, and four other species similarly described 

 by E. L. Greene, are here referred to Acer glabrum Torrey. 



