Edgar Theodore Wherry (1885–1982) was an American mineralogist, soil scientist and botanist. He had a deep interest in ferns and Sarracenia.
Wherry earned his bachelors degree in chemistry in 1906 from the University of Pennsylvania. He received his doctorate in mineralogy in 1909 from the same university. From 1908 to 1912, he taught at Lehigh University. He lived in Washington, D.C. from 1912 to 1930, part of this time working as an assistant curator of mineralogy for the U. S. National Museum, and also for the Bureau of Chemistry of the United States Department of Agriculture. He taught botany at the University of Pennsylvania from 1930 to 1955, when he retired. He wrote many papers in mineralogy through those years.
He became interested in ferns at age 30, and did much work in that field the rest of his life. He was president of the American Fern Society from 1934 to 1939. He wrote three key guides to the ferns of eastern North America. The first was Guide to Eastern Ferns in 1937, followed by a greatly updated The Fern Guide in 1961, and lastly The Southern Fern Guide in 1964. He was in the forefront of taxonomic work on ferns, and his field guides provided far more current taxonomy than other guides of the day. He donated all royalties from the fern field guides to the American Fern Society.
The "Edgar T. Wherry Award" was established in 1989 by the Botanical Society of America for the best paper presented each year in the pteridological section.
Plant Named for Wherry 
Plants Named by Wherry 
Books by Wherry 
- Wherry, Edgar T. Wild Flowers of Mount Desert Island, Maine. Garden Club of Mount Desert, Bar Harbor, Maine. 1928. 164 pp. ill.
- Wherry, Edgar T. The Wild Flower Guide, Northeastern and Midland United States. Doubleday, Garden City, New York. 1948. 202 pp. ill.
- Wherry, Edgar T. Guide to Eastern Ferns. Illustrated with line drawings by Oliver Stoner and Cyrus Feldman. First edition: The Science Press Printing Company, Lancaster, Pennsylvania. 1937. iv, 220 pp. frontispiece, illus, 6.5x4in (170x100mm), hardcover. Second edition: University of Pennsylvania Press, Philadelphia, Pennsylvania. 1942. iv, 252 pp. hardcover. Reprint of second edition: University of Pennsylvania Press, Philadelphia, Pennsylvania. 1948. iv,252 pp. hardcover.
- Wherry, Edgar T. The Genus Phlox. 174 p., illus. Morris Arboretum Monograph 3. 1955. 174 pp. ill.
- Wherry, Edgar T. The Fern Guide (Northeastern and Midland United States and Adjacent Canada; Doubleday Nature Guide Series). Illustrated by James C. W. Chen. First printing: Doubleday & Co., Garden City, New York. 1961. 318 pp. hardcover. Reprint: Dover Publications Inc., New York, New York. 1994 (1995?). 318 pp. 120 b/w ill, softcover. ISBN 0-486-28496-4.
- Wherry, Edgar T. The Southern Fern Guide (Southeastern and Midland United States; Doubleday Nature Guide Series). Illustrated by James C. W. Chen and Keith C. Y. Chen. First edition: Doubleday & Co., Garden City, New York. 1964. 349 pp. hardcover. Second edition: "Corrected First Edition with Nomenclatural Changes". American Fern Society, New York Chapter, Bronx, New York. 1972. 349 pp. softcover. LC 77-93190. Reprint of second edition: American Fern Society, New York Chapter, Bronx, New York. 1978. 349 pp. hardcover.
- Hooker, Marjorie, and Arthur Montgomery. "Edgar Theodore Wherry." American Mineralogist 60:533-539. 1975: http://www.minsocam.org/ammin/AM60/AM60_533.pdf
- Fogg, John M., Jr. "Edgar Wherry in Pennsylvania." American Fern Journal 66(2):33- 1976.
- Wagner, Warren H., Jr. "Edgar T. Wherry and his contributions to pteridology." American Fern Journal 73(1):1- 1983.