CHECK LIST OF FOREST TREES OF THE UNITED STATES. 



GYMNOSPEEMiE. 



Family PINACEiE. 



PINUS Linn. 

 Pinus strobus Linn. White Pine. 



Range. — From Newfoundland (White Bay region) and along the northern shores of 

 St. Lawrence Gnlf to northern Ontario (near Abittihi and Nipigon lakes) southern 

 Manitoba (near southern end of Lake Winnipeg); southward through northern and 

 eastern Minnesota, northeastern (Mitchell County) and eastern border of Iowa (to 

 Scott County), northern (counties) Illinois, southern shores of Lake Michigan, 

 southern Michigan (north of Allegan, Eaton, and St. Clair counties), northeastern 

 and eastern (border counties) Ohio, and along the Allegheny Mountaius to northern 

 Georgia (Tallulah Falls). 



Names in use. — White Pine (Me., K H. ? Vt., Mass., E. I., Conn.,- 

 KY, K J., Pa., Del., Va., W. Va., N. C, Ga., Ind., 111., Wis., Mich., 

 Minn., Ohio, Ont., Nebr.); Weymouth Pine (Mass., S. 0.); Soft Pine 

 (Pa.); Northern Pine (S. C); Spruce Pine (Teun.). 



VARIETIES DISTINGUISHED IN CULTIVATION. 



Pinus strobus brevifolia Loud. 

 Pinus strobus umbraculifera Knight. 

 Pinus strobus minima Beissn. 

 Pinus strobus fastigiata (Koch) Beissn. 

 Pinus strobus viridis Carr. 

 Pinus strobus gracilifolia Sudw. 

 Pinus strobus nivea (Knight) Carr. 

 Pinus strobus aurea Carr. 

 Pinus strobus variegata Carr. 

 Pinus strobus zebrina Beissn. 

 Pinus strobus prostrata Hort. Kew. 

 Pinus strobus unifolia 1 nom. nov. 



Pinus monticola Dougl. Silver Pine. 



Raxcie. — From Vancouver Island and southern British Columbia (coast and gold 

 ranges) through northern Idaho (Cceur d'Alene and Bitter Root mountains) to 

 northern Montana (Flathead River) and southward through Washington and Oregon 

 (Cascade Mountains) to California (on Sierra Nevada Mountains to Calaveras 

 County). 



1 Pinus strobus unifolia nom. nov. = Pinus strobus forma nova monophylla Tubeuf, in 

 Forstl.-naturw. Zeitschr., VII., 34, (t.) 35, 1898, not P. monophylla Torr. & Frem. 

 1845. A form recently detected in Germany and characterized by Dr. Tubeuf as 

 having the needles more or less cohering throughout their length and forming a 

 single needle. 



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