Thomson R H
Department of Chemistry, University of Aberdeen, Scotland.
Pharm Weekbl Sci. 1991 Apr 26;13(2):70-3. doi: 10.1007/BF01974983.
Angiosperms, fungi (including lichens), and bacteria are the main sources of natural quinones. Small numbers are present in algae, ferns, conifers, sponges, echinoderms, other marine animals, and arthropods. In angiosperms quinones have some chemotaxonomic value at the genus and family level but more surveys are required.