Species and varieties, their origin by mutation; lectures delivered at the University of California Vries, Hugo de, 1848-1935 creator MacDougal, Daniel Trembly, 1865-1958 contributor text book Chicago The Open court publishing company; [etc.,etc.] 1905 1905 2d ed. rev.
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ENG Evolution Hybridization, Vegetable Plant mutation QH366 .V98 https://www.biodiversitylibrary.org/bibliography/30156 05004499 10.5962/bhl.title.30156