THIS little book is an expansion of several chapters of the author's “Fundamentals of Botany.” It is intended for beginners and general readers, and presents in a fresh way a very readable and ...
Clausen, J. Keck, D D, and Hiesey, W M. 1940. Experimental studies on the nature of species. I. Effect of varied environments on Western North American plants. Publ ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results