Richard H. Eyde, 61, the curator of botany at the Smithsonian Institution's Museum of Natural History and an authority on fruits and seeds, died of cancer May 27 at his home in Arlington.

Dr. Eyde was born in Lancaster, Pa., where he graduated from Franklin & Marshall College. He received a master's degree in botany at Ohio State University and a doctorate in botany at Harvard University. He studied wood fossils in Lucknow, India, on a Fulbright Scholarship.

In 1961, Dr. Eyde settled in the Washington area and went to work at the Museum of Natural History as a research assistant. He was made an associate curator of botany in 1962 and curator in 1969.

His particular professional interests included the dogwood throughout its range from the Arctic to the Andes and across Eurasia, and the tupelo, a related tree. His publications included an article on the evolutionary development of the flower.

Dr. Eyde was a past president of the Botanical Society of Washington and a member of the American Association for the Advancement of Science, the American Institute for Biological Science, the American Society for Plant Taxonomists, the Botanical Society of America and the International Association for Plant Taxonomy. He also was a member of the Goethe Society of North America and the Goethe Gesellschaft.

Survivors include his wife, Lorraine Dittrich Eyde of Arlington; two sons, Dana E. Eyde of Seattle and Douglas A. Eyde of Alexandria; his stepfather, Carl B. Bostrom Sr. of Silver Spring; a sister, Barbara Lovett of Sacramento, Calif.; a stepsister, Gerd Bostrom, who lives near Stockholm; and a stepbrother, Carl O. Bostrom of Silver Spring.


American University Trustee

Helen Palmer Kettler, 70, a trustee of American University who was active in church and service organizations, died of kidney failure May 27 at her home in Arlington.

Mrs. Kettler was born in Arlington. She graduated from the old Western High School in Washington and from American University, where she majored in political science. From 1945 to 1949, she was a children's librarian with the D.C. Public Library.

In addition to serving as a trustee of AU, she was a member of its campaign cabinet and arts development committee. She received the AU President's Circle Award in 1986 and the Cyrus A. Ansary Medal for Distinguished Service in 1989. The university has broken ground for the Helen and Charles Kettler fine arts building.

Mrs. Kettler also was chairman of Second Church of Christ, Scientist, in Arlington, and president of the Rock Spring Garden Club and the Neighbors Club of North Arlington. She was a member of the board of the Washington chapter of the Girl Scouts of America and a volunteer with the Reading Is Fundamental program.

Survivors include her husband of 49 years, Charles L. Kettler of Arlington; three children, Everett Kettler of East Calais, Vt., Virginia Armstrong of Gaithersburg and Laura Mullins of Falls Church; and eight grandchildren.



Roger Stahel Cohen Jr., 63, a certified public accountant since 1956 who was a retired partner in the Bethesda accounting firm of Cohen & Smith, died of leukemia May 26 at Suburban Hospital. He lived in Arlington.

He worked for several area accounting concerns before founding his own firm in 1963. He retired in February 1989. Mr. Cohen was a native of Washington and graduate of Ben Franklin University. He served with the Navy in the Pacific during World War II.

He had served on the governor's Maryland Civil War Centennial Commission, was a founder of the Potomac Arms Collectors Association, and was a member of the Montgomery County Historical Society. He wrote the text for several historical markers in Montgomery County.

His marriage to Alva Cohen ended in divorce.

Survivors include his wife, Deborah Pennington Cohen, and their two daughters, Catherine Edith Cohen and Amy Pennington Cohen, all of Arlington; three children by his first marriage, Janet Schweig of Herndon, R. Scott Cohen of Silver Spring and Kathryn Cohen of San Francisco; a brother, Scott, of Miami; and two grandchildren.