SUMMARYThe genus Omphalina is emended to include only those species having yellow to orange pigments in some portion of the basidiocarp. Fourteen taxa are recognized in the North American flora. The variety O. chrysophylla var. salmonispora is described as new. The new combinations proposed are: Omphalina occidentalis, O. sphagnophila, O. hudsoniana, O. hoffmanii, Clitocybe isabellina.
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Howard E. Bigelow (1970) studied this question.
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