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AN INVESTIGATION OF THE ROLE OF AUTOPOLYPLOIDY IN THE DISTRIBUTION OF TRADESCANTIA OHIENSIS, RAF. IN MICHIGAN AND ADJOINING AREAS.

DONALD STEWART DEAN

出版	University of MICHIGAN, 1952
URL	http://books.google.com.hk/books?id=txDeMu2g64kC&hl=&source=gbs_api