The late Sylvia Duran Sharnoff was a research associate at the Missouri Botanical Garden and research affiliate at the University and Jepson Herbaria, University of California, Berkeley. She was a renowned nature photographer.
Irwin M. Brodo is emeritus research scientist at the Canadian Museum of Nature, Ottawa, Ontario, and is considered a world authority on lichens and their biology.
Stephen Sharnoff is a research associate at the Missouri Botanical Garden and research affiliate at the University and Jepson Herbaria, University of California, Berkeley. He is a renowned nature photographer.