Dumontinia is a fungal genus in the family Sclerotiniaceae.

The genus is monotypic, containing the single species Dumontinia tuberosa, found in Europe.

[2] The genus name of Dumontinia is in honour of Kent Parsons Dumont (b.1941), an American botanist (Mycology) from the New York Botanical Garden.

[3] The genus was circumscribed by Linda M.Kohn in Mycotaxon Vol.9 (Issue 2) on page 432 in 1979.

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