Botanist, university professor. Born– September 1, 1872, Gallion. Parents– Reuben Henry and Margaret Louisa (Minge) Duggar. Married– Marie L. Robertson, October 16, 1901. Children– Five. Married– Elsie Rest, June 6, 1927. Children– One. Education– University of Alabama; Mississippi Agricultural and Mechanical College, B.S. (First Honors), 1891; Alabama Polytechnic Institute, M.S., 1892; Harvard University, A.B., 1894; M.A., 1895; Cornell University, Ph.S., 1898; studied in botanical laboratories in Germany and France, 1905-1906; University of Missouri, honorary LL.D., 1944; Washington University, honorary D.Sc., 1953. Served as assistant director of the Alabama Experimental Station in Union, 1892-1893; assistant botanist at the Illinois State Laboratory of Natural History, 1895-1896; instructor at Cornell University, 1896-1901; plant physiologist at the Bureau of Plant Industry, U.S. Department of Agriculture, 1901-1902; professor at the University of Missouri, 1902-1905; Cornell University, 1907-1912; Washington University and Missouri Botanical Garden, 1912-1927; University of Wisconsin, 1929-1943. Worked as a consultant in mycological research for Lederle Laboratories. Edited Botanical Abstracts, 1917-1933. Awarded the Medal of Honor of Public Education by Venezuela, 1951.


Who Was Who in America, vol. 3; Dictionary of American Biography, Supplement 6, and files at Alabama Public Library Service.


The Cultivation of Mushrooms. Washington, D.C.; Government Printing Office, 1904.

Fungus Diseases of Plants. New York; Ginn, 1909.

Mushroom Growing. New York; Orange Judd Co., 1915.

Plant Physiology. New York; Macmillan, 1911.

The Principles of Mushroom Growing and Mushroom Spawn Making. Washington, D.C.; Government Printing Office, 1905.


A Textbook of General Botany. New York; Macmillan, 1942.


Biological Abstracts of Radiation. New York; McGraw, 1936.