Professional Activities

Manuscript reviews for Systematic Botany, American Journal of Botany, Madroño, Southwestern Naturalist, Botanical Gazette, Aliso, Australian Journal of Botany, Crossosoma.

Grant reviews for National Science Foundation, National Geographic Society, Southern California Botanists.

Board of Directors, Southern California Botanists, Inc., Jan 1981 - Nov 1984, Jan 1989 - Dec 1989, Jan 1992-Dec 1993.

President, Southern California Botanists, Inc., Jan 1990 - Dec 1991.

Editor, Crossosoma (journal of Southern California Botanists, Inc.), Jan 1992 - Dec 1995.

Memberships