U.S.D.A. Soil Conservation Service. 1982. NATIONAL LIST OF SCIENTIFIC PLANT NAMES. 

 VOL. 1. LIST OF PLANT NAMES. VOL. 2. SYNONYMY. Washington, DC. 



Van Bruggen, T. 1985. THE VASCULAR PLANTS OF SOUTH DAKOTA (2ND ED.). Iowa State Uni- 

 versity Press, Ames, lA. 476 pp. 



Viereck, L.A. 1972. ALASKA TREES AND SHRUBS. USDA, Washington, DC. Agric. Handbook No. 

 410. 265 pp. 



Vines, R.A. 1976. TREES, SHRUBS, AND WOODY VINES OF THE SOUTHWEST. University of 

 Texas Press, Austin, TX. 1 104 pp. 



Voss, E. 1972. MICHIGAN FLORA. PART I. GYMNOSPERMS AND MONOCOTYLEDONS. Cran- 

 brook Institute of Science, Bloomfield Hills, MI. 488 pp. 



Voss, E. 1985. MICHIGAN FLORA. PART H. DICOTYLEDONS. Cranbrook Institute of Science, 

 Bloomfield Hills, MI. 724 pp. 



Wagner, W.L., and E.F. Aldon. 1978. MANUAL OF THE SALTBUSHES (ATRIPLEX SPP.) IN 

 NEW MEXICO. USDA, Forest Service, Rocky Mountain Forest and Range Experiment Station, Ft. Col- 

 lins, CO. General Technical Report RM-57. 50 pp. 



Waterfall, U.T. 1979. KEYS TO THE FLORA OF OKLAHOMA. Oklahoma State University, Stillwater, 

 OK. 246 pp. 



Weber, W.A. 1976. ROCKY MOUNTAIN FLORA. Colorado Associated University Press, Boulder, 

 CO. 479 pp. 



Weber, W.A. 1987. COLORADO FLORA: WESTERN SLOPE. Colorado Associated University Press, 

 Boulder, CO. 530 pp. 



Weishaupt, C.G. 1960. VASCULAR PLANTS OF OHIO. Ohio State University Press, Columbus, OH. 

 307 pp. 



Welsh, S.L. 1973. UTAH PLANTS. Brigham Young University Press, Provo, UT. 474 pp. 



Welsh, S.L. 1974. ANDERSON'S FLORA OF ALASKA AND ADJACENT PARTS OF CANADA. 

 Brigham Young University Press, UT. 724 pp. 



West, E., and L.E. Arnold. 1950. THE NATIVES TREES OF FLORIDA. Fourth Printing. University of 

 Rorida Press, Gainesville, FL. 212 pp. 



Wherry, T.E., J.M. Fogg, and H.A. Wahl. 1979. ATLAS OF THE FLORA OF PENNSYLVANIA. The 

 Morris Arboretum, University of Pennsylvania, Philadelphia, PA. 390 pp. 



Wiegand, K.M., and A.J. Fames. 1926. THE FLORA OF THE CAYUGA LAKE BASIN, NEW YORK. 

 Cornell University Agricultural Experiment Station, Cornell University Press, Ithaca, NY. Memoir No. 

 92. 491 pp. 



Wiggins, I.L., and J.H. Thomas. 1962. A FLORA OF THE ALASKAN ARCTIC SLOPE. Arctic Insti- 

 tute of North America, University of Toronto Press, Toronto, Canada. Spec. Publ. No. 4. 425 pp. 



Wooton, E.O., and P.C. Standley. 1972. FLORA OF NEW MEXICO. Reprints of U.S. - Horas, Vol. 7. 

 Stechen-Hafner Service Agency, Inc., New York, NY. 794 pp. 



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