Reports on Engelmann spruce: seed yield and 

 germination period; distribution; sites suitable 

 for planting; and survival after 4 years in ex- 

 perimental plantings . 



KORSTIAN, CLARENCE F. (See Baker, 

 Korstian, and Fetherolf. 1921) 



KORSTIAN, CLARENCE F. , and N. J. 



FETHEROLF. 1921. Control of stem girdle 

 of spruce transplants caused by excessive 

 heat. Phytopathology 11: 485-490. 



KORSTIAN, CLARENCE F. (See Supplement, 

 p. 37: Toumey and Korstian. 1954) 



LANDGRAF, A. E. 1959. Forest insect con- 

 ditions in the central Rocky Mountains, 1958. 

 U.S. Forest Serv., Rocky Mountain Forest 

 and Range Expt. Sta. Paper 40, 19 pp. 



LANDGRAF, A. E. , and H. E. OSTMARK. 

 1958. Forest insect conditions in the central 

 Rocky Mountains , 1957. U.S. Forest Serv., 

 Rocky Mountain Forest and Range Expt. Sta. 

 Paper 34, 20 pp. 



LANGENHEIM, JEAN H. 1955. Flora of the 

 Crested Butte Quadrangle, Colorado. 

 Madrono 13: 64-78. 



LANGENHEIM, JEAN H. 1962. Vegetation and 

 environmental patterns in the Crested Butte 

 area, Gunnison County, Colorado. Ecol. 

 Monog. 32: 249-285. 



Community description. 



LANGILLE, H. D. , FRED G. PLUMMER, 



ARTHUR DODWELL, THEODORE F. RDCON, 

 and JOHN LEIBERG. 1903. Forest conditions 

 in the Cascade Range Forest Reserve, Oregon. 

 U.S. Dept. Int., Geol. Surv. Prof. Paper 9, 

 298 pp. 



Discusses distribution of Engelmann spruce, 

 community composition based on volume , and 

 size-age relationships of this species. 



LARSEN, J. A. 1918. Comparison of seed 

 testing in sand and in the Jacobsen germinator. 

 Jour. Forestry 16: 690-695. 



Reports on the germination of Engelmann 

 spruce . 



LARSEN, J. A. 1924. Some factors affecting 

 reproduction after logging in northern Idaho . 

 Jour. Agr. Res. 28: 1149-1157. 



Lists factors affecting establishment of 

 Engelmann spruce, hemlock, and white pine. 



LARSEN, J. A. 1925. Natural reproduction 

 after forest fires in northern Idaho. Jour. 

 Agr. Res. 30: 1177-1197. 



Quantitative data on community composition 

 based on density; also quantitative data on re- 

 production. 



LARSEN, J. A. 1927. Relation of leaf struc- 

 ture of conifers to light and moisture. 

 Ecology 8: 371-377. 



Describes anatomy of Engelmann spruce 

 leaves . 



LARSEN, J. A. 1929. Fires and forest suc- 

 cession in the Bitterroot Mountains of 

 northern Idaho. Ecology 10: 67-76. 



Distribution and autecological information on 

 Engelmann spruce. 



LARSEN, J. A. 1930. Forest types of the 

 northern Rocky Mountains and their cbmatic 

 controls. Ecology 11: 631-672. 



Includes cbmatic data and community 

 description. 



LARSEN, J. A. 1940. Site factor variations 

 and responses in temporary forest types in 

 northern Idaho. Ecol. Monog. 10: 1-54. 



Discusses topographic distribution of Engel- 

 mann spruce. 



LEAPHART, CD. (See Gilbertson, Leaphart, 

 and Johnson. 1961) 



LeBARRON, RUSSELL K. , and G. M. JEMISON. 

 1953. Ecology and silviculture of Engelmann 

 spruce -alpine fir type. Jour. Forestry 51: 

 349-355. 



Includes community description and autecol- 

 ogy of Engelmann spruce. 



LEE , MERLIN RAYMOND. 1960. Montane 

 mammals of southeastern Utah- -with em- 

 phasis on the effects of past climates upon 

 occurrence and differentiation. Ph.D. thesis. 

 Univ. Utah, Salt Lake City. 



Discusses distribution of Engelmann spruce. 



LEHRLE, L. W. W. (See Clark, Lehrle, and 

 Smith. 1954) 



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