June 1994
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An index of plants reported to be susceptible to Sclerotinia sclerotiomm was compiled from the scientific literature. The index contains 42 subspecies or varieties, 408 species, 278 genera and 75 families. Except for one species in the Pteridophyta, all hosts of S. sclerotiomm occur in the classes Gymnospermae and Angiospermae of the division Spermatophyta. Most hosts are herbaceous plants from the subclass Dicotyledonae of the Angiospermae but several hosts also occur in the subclass Monocotyledonae. The organization in this index of our knowledge of the host specificity of S. sclerotiomm may facilitate the control of diseases caused by this pathogen and the use of the fungus as an agent of biological control.