STAHELIN, R. 1943. Factors influencing the 

 natural restocking of high altitude burns by 

 coniferous trees in central Rocky Mountains. 

 Ecology 24: 19-30. 



STANTON, W. D. 1931. A preliminary study 

 of the flora of the Henry Mountains of Utah . 

 Master's thesis. Brigham Young Univ. ,Provo, 

 Utah. 



STARKER, T. J. 1934. Fire resistance in the 

 forest. Jour. Forestry 32: 462-467. 



Describes relative resistance of Engelmann 

 spruce to fire and morphological characteristics 

 associated with fire damage. 



STEFANSSON, V. 1951. Nokkrar stadreyndin 

 um skograsktina . Arsr. Skogroektarf . Islands 

 1950: 5-23. 



Presents growth data on Engelmann spruce in 

 Iceland. - 



STEVENS, CLARK L. (See Toomey and Stevens. 

 1928) 



STEWART, BELLE KATHERINE. 1940. Plant 

 ecology and paleo -ecology of the Creede Val- 

 ley. Ph.D. thesis. Univ. Colo., Boulder. 



STEWART, DOUGLAS N. 1948. Response of 

 Colorado blue spruce and Engelmann cuttings 

 to hormone solutions. Mont. Acad. Sci. Proc. 

 1947-48(7-8): 39. 



STILLINGER, C. R. 1929. Dasyscypha fusco- 

 sanguinea Rehm on western white pine, Pinus 

 monticola Dougl. Phytopathology 19: 575-584. 



Describes Dasyscypha arida on Engelmann 

 spruce in Idaho. 



STIRLAND, LaGRANDE. 1930. The spruce 

 gall aphid Adelges cooleyi (Gill) in Utah . 

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



STODDART, L. A. , and A. D. SMITH. 1955. 

 IN: Range Management, 2d ed., 433 pp. The 

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STOVER, ERNEST L. 1944. Varying structure 

 of conifer leaves in different habitats. Bot. 

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STRUIK, G. J. (See Bray and Struik. 1963) 



STUDHALTER, R. A. (See Glock, Studhalter, 

 andAgerter. 1960) 



STURGIS, W. C. 1913. Herpotrichia and Neo- 

 peckia on conifers. Phytopathology 3: 152 - 

 158. . 



Describes Herpotrichia nigra infesting leaves 

 and twigs of Engelmann spruce. 



STUTZ, HOWARD C. 1951. An ecological study 

 of a Sphagnum lake in the subalpine forest of 

 the Uinta Mountains of Utah. Master's thesis. 

 Brigham Young Univ. , Provo, Utah. 



Provides quantitative phytosociological data. 



SUD WORTH, GEORGE B. 1897. Nomenclature 

 of the arborescent flora of the United States. 

 U.S. Dept. Agr., Div. Forestry Bui. 14, 419 

 pp. 



SUDWORTH, GEORGE B. 1889. Forest flora of 

 the Rocky Mountain region. U.S. Dept. Agr., 

 Div. Forestry Bui. 2: 153-197. 



SUDWORTH, GEORGE B. 1898. Check list of 

 the forest trees of the U.S. , their names and 

 ranges. U.S. Dept. Agr. Bui. 17, 144 pp. 

 (Revised 1927 as U.S. Dept. Agr. Misc. Cir. 

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SUDWORTH, GEORGE B. 1900. White River 

 Plateau Timber Land Reserve. U.S. Geol. 

 Surv. Ann. Rpt. 20, 1898-99, Part V- Forest 

 reserves: 117-179. 



SUDWORTH, GEORGE B. 1900. Battlement 

 Mesa Forest Reserve. U.S. Geol. Surv. 

 Ann. Rpt. 20, 1898-99, Part V-Forest re- 

 serves: 181-243. 



SUDWORTH, GEORGE B. 1900. The forest 

 nursery: Collection of tree seeds and propa- 

 gation of seedblngs. U.S. Dept. Agr., Div. 

 Forestry Bui. 29, 64 pp. 



SUDWORTH, GEORGE B. 1908. Forest trees 

 of the Pacific slope. U.S. Dept. Agr., For- 

 est Serv. 441 pp. Washington: Govt. Printing 

 Office. 



SUDWORTH, GEORGE B. 1916. The spruce 

 and balsam fir trees of the Rocky Mountain 

 region. U.S. Dept. Agr. Bui. 327, 43 pp. 



SVIHLA, RUTH DOWELL. 1932. The ecologi- 

 cal distribution of the mammals on the north 

 slope of the Uinta Mountains. Ecol. Monog. 

 2:47-81. 



Community description. 



31 



