Experimental studies on the nature of species

Vol. 4 by J. Clausen, W. M. Hiesey; vol. 5: W. M. Hiesey, M. A. Nobs, O. Björkman; vol. 6- W. M. Hiesey, M. A. Nobs.Includes bibliographical references.I. Effect of varied environments on western North American plants.--II. Plant evolution through amphiploidy and autoploidy, with examples from the Madiinae.--III. Environmental responses of climatic races of Achillea.--IV. Genetic structure of ecological races.--V. Biosystematics, genetics, and physiological ecology of the Erythranthe section of Mimulus.--VI. Interspecific hybrid derivatives between facultatively apomictic species of bluegrasses and their responses to contrasting environments.Mode of access: Internet