American botanist (1887-1956).
Mancel Thornton Munn (January 31, 1887 in Plainwell, Michigan – November 16, 1956 in Arcadia, California) was a New York State botanist, an agronomist, and an expert in crop seed testing who pioneered some of the early American legislative efforts to regulate the import of seeds from other countries. He was also an Emeritus Professor of Seed Investigations at Cornell University. Munn attended the Michigan Agricultural College, graduating in June 1911, and studied seed samples in accordance with the provisions of Michigan's Pure Seed Law during his final two years there. Following graduation, h