LEIBERG, JOHN B. 1899. Priest River Forest 

 Reserve. U.S. Geol. Surv. Ann. Rpt. 19, 

 1897-98, Part V-Forest reserves: 217-252. 



Distribution and community. 



LEIBERG, JOHN B. 1899. Bitterroot Forest 

 Reserve. U.S. Geol. Surv. Ann. Rpt. 19, 



1897- 98, Part V-Forest reserves: 253-282. 



Community description. 



LEIBERG, JOHN B. 1899. Present condition of 

 the forested areas in northern Idaho outside 

 the limits of the Priest River Forest Reserve 

 and north of the Clearwater River. U.S. Geol. 

 Surv. Ann. Rpt. 19, 1897-98, Part V-Forest 

 reserves: 373-386. 



Distribution of Engelmann spruce. 



LEIBERG, JOHN B. 1900. Bitterroot Forest 

 Reserves. U.S. Geol. Surv. Ann. Rpt. 20, 



1898- 99, Part V-Forest reserves: 317-41-0. 



LEIBERG, JOHN B. 1900. Cascade Range Forest 

 Reserve, Oregon . . . together with the Ashland 

 Forest Reserve and adjacent forest regions ... . 

 U.S. Geol. Surv. Ann. Rpt. 21, Part V-Forest 

 reserves: 209-498. 



Community and distribution. 



LEIBERG, JOHN B. 1900. Sandpoint Quadrangle , 

 Idaho. U.S. Geol. Surv. Ann. Rpt. 21, Part 

 V-Forest reserves: 583-595. 



Community composition. 



LEIBERG, JOHN B. 1904. Forest conditions in 

 the Absaroka Division of the Yellowstone 

 Forest Reserve, Montana, and the Livingston 

 and Big Tiniber Quadrangles . U.S. Dept . Int . , 

 Geol. Surv. Prof. Paper 29, 148 pp. 



Describes community composition, and re- 

 production and size -age relationship of Engel- 

 mann spruce. 



LEIBERG, JOHN B. 1904. (See Supplement, 

 p. 37) 



LEIBERG, JOHN B. (See Langille et al. 1903) 



LEIBERG, JOHN B. , THEODORE F. RDCON, 

 and ARTHUR DODWELL. 1904. Forest 

 conditions in the San Francisco Mountains 

 Forest Reserve, Arizona. U.S. Dept. Int., 

 Geol. Surv. Prof. Paper 22, 95 pp. 



Discusses community composition based on 

 volume (B.M.), and distribution and size of 

 Engelmann spruce. 



LEMMON, J. G. 1895. Handbook of west Ameri- 

 can cone -bearers. 104 pp. 3d ed. Oakland. 



Reports on Picea engelmanni var . Franciscana 

 Lemmon. 



LEMMON, J. G. 1897. Three west-American 

 conifers. Gard. and Forest 10: 183. 



Picea columbiana nom . nov. is taken up for 

 Picea engelmanni Engelm . 



LENTZ, P. L. (See McKay and Lentz. 1960) 



LEOPOLD, E. B. 1953. Timberline growth 

 rate and climatic correlations on Pike's Peak, 

 Colorado. Ecol. Soc. Amer. Bui. 34: 90. 



LIST, PETER. 1959. Growth prediction in 

 spruce -fir forest type on U. S. U. College 

 forest. Master's thesis. Utah State Univ. , 

 Logan. 



LITTLE, ELBERT ~L. , JR. 1944. Notes on 

 nomenclature in Pinaceae. Amer. Jour. Bot. 

 31: 587-596. 



Discusses history and taxonomy of Engelmann 

 spruce. 



LITTLE, ELBERT L. , JR. 1949. Important 

 forest trees of the United States. IN: U.S. 

 Dept. Agr., Trees, Yearbook of Agriculture, 

 1949: 763-814. 



Discusses distribution and uses of Engelmann 

 spruce. 



LITTLE, ELBERT L. , JR. 1950. Southwestern 

 trees, a guide to the native species of New 

 Mexico and Arizona. U.S. Dept. Agr. , Agr. 

 Handb. 9, 109 pp. 



LITTLE , ELBERT L. , JR. 1953. Check list of 

 native and naturalized trees of the United 

 States (including Alaska) . U.S. Dept. Agr., 

 Agr. Handb. 41, 472 pp. 



LITTLE, ELBERT L. , JR. 1953. A natural 

 hybrid spruce in Alaska. Jour. Forestry 51: 

 745-746. 



Intergrades between P. glauca and P. engel- 

 manni are common in southern British Columbia. 



LITTLE, ELBERT L. , JR. 1956. Pinaceae of 

 Nevada. Contributions toward a flora of 

 Nevada 40: 1-40. U.S. Dept. Agr., Agr. 

 Res. Serv., Plant Indus. Sta., Beltsville, Md. 



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