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Research Professor, Department of Biology, The Catholic University of America, Washington, D. C.; and research associate, Botanisk Institütt, Vollebekk, Norway, respectively. The authors are indebted to Dr. W. A. Weber of the University of Colorado, and Dr. H. D. Harrington of the Colorado A & M College for assistance in the identification of species. Appreciation is extended to the Director and staff of the Rocky Mountain Forest and Range Experiment Station, U. S. Forest Service, and to Dean C. H. Wasser of the School of Forestry and Range Management of the Colorado A & M College for the use of facilities and other assistance.
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Hanson, H.C., Dahl, E. Some grassland communities in the mountain-front zone in northern Colorado. Vegetatio Acta Geobot 7, 249–270 (1957). https://doi.org/10.1007/BF00300309
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DOI: https://doi.org/10.1007/BF00300309