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Robert T. Clausen

Robert T. Clausen was born in New York City on December 26, 1911. He attended Cornell University where he received his bachelor's degree in 1933, his master's degree in 1934, and his doctorate in 1937. Clausen worked as an instructor for the L. H. Bailey Hortorium from 1937-1939. He then became an Assistant Professor of Botany in the Hortorium from 1939-1941.

In 1941, Clausen joined the Department of Botany and was eventually promoted to the rank of Associate Professor in 1944 and Professor in 1949. In addition to Professor, Clausen was also appointed Curator of the Wiegand Herbarium in 1954.

Professor Clausen's published two major works on Sedum (Crassulaceae): Sedum of the Trans-Mexican Volcanic Belt: An Exposition of Taxonomic Methods, published in 1959, and Sedum of North America North of the Mexican Plateau, published in 1975. R.T. Clausen retired in 1977. Emeritus status followed his retirement in 1977.

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