Leptonia is a subgenus of fungi in the genus Entoloma. Called pinkgills in English, basidiocarps (fruit bodies) are agaricoid, mostly (but not always) mycenoid (like species of Mycena) with slender stems. All have salmon-pink basidiospores which colour the gills at maturity and are angular (polyhedral) under a microscope. Recent DNA evidence has shown that at least 12 species belong in Leptonia in temperate Europe and Asia.

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