Russula adusta
species of fungus
Russula adusta, commonly known as the blackening brittlegill or blackening russula, is a species of gilled mushroom. It is a member of the Russula subgenus Compactae. The cap is brown to gray and somewhat shiny, with a mild taste and, reportedly, an odor of empty wine barrels. It has a propensity to turn black from cutting or bruising and has white spores. Similar species include Russula albonigra and R. densifolia.
Russula adusta is found in woodlands of Europe and North America, growing under conifers.
Taxonomy
Russula adusta was first described by the French mycologist Pierre Bulliard in 1785 as Agaricus nigricans, before gaining its current binomial name from the Swedish mycologist Elias Magnus Fries.
Description
This is a large member of the genus Russula, and it has a cap that is dirty white when young, but swiftly turns brown, and then black on aging. It measures 5–20 cm (2–8 in) in diameter. There is usually a large depression in the centre of mature caps, which are three quarter peeling.
The public source identifies “Russula adusta” as species of fungus. This brief keeps that definition visible, then builds a research path around Russula, adusta and species.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 28, 2025. The linked authority identifier is Q1784176. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1785.
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This entry incorporates text from “Russula adusta” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.