{{Short description|Species of fungus}} {{Speciesbox | image = 2009-12-23 Phellodon atratus 30824 cropped.jpg | image_caption = | genus = Phellodon | species = atratus | authority = K.A.Harrison (1964) | synonyms_ref = | synonyms = }}

'''''Phellodon atratus''''' is a species of tooth fungus in the family Bankeraceae. Found in North America, it occurs most frequently closer to the Pacific coast and under Sitka spruce.

== Taxonomy == The species was described as new to science in 1964 by Canadian mycologist Kenneth A. Harrison.<ref name="Harrison 1964" />

== Description == The cap is dark violet to black, sometimes making it difficult to see; the margins are usually lighter.<ref name=":0">{{cite book |last1=Trudell |first1=Steve |url=https://books.google.com/books?id=WevHvt6Tr8kC |title=Mushrooms of the Pacific Northwest |last2=Ammirati |first2=Joe |publisher=Timber Press |year=2009 |isbn=978-0-88192-935-5 |series=Timber Press Field Guides |location=Portland, OR |pages=233-234 |language=en}}</ref> It is {{Convert|1.5-5|cm|frac=8}} wide, while the off-center stipe is {{Convert|1.5-4.5|cm|abbr=on|frac=4}} tall.<ref name="audu">{{Cite book |last=Audubon |title=Mushrooms of North America |publisher=Knopf |year=2023 |isbn=978-0-593-31998-7 |pages=215}}</ref> The flesh is violet or blue-black.<ref name=":0" /> It has a mild smell and produces a white spore print.<ref name="audu" />

Its edibility is unknown, but it is too small and tough to be of interest.<ref name="Arora1986">{{Cite book |last=Arora |first=David |author-link=David Arora |url=https://archive.org/details/arora-david-mushrooms-demystified-a-comprehensive-guide-to-the-fleshy-fungi-ten-speed-press-1986/page/629/mode/2up |title=Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi |publisher=Ten Speed Press |year=1986 |isbn=978-0-89815-170-1 |edition=2nd |location=Berkeley, California |pages=629 |orig-date=1979}}</ref>

=== Similar species === ''Phellodon melaleucus'' is similar, but appears more brownish, also staining brown.<ref name=":0" /> Other lookalikes include ''P.&nbsp;niger'', ''P.&nbsp;alboniger'', ''P.&nbsp;melaleucus'', ''P.&nbsp;tomentosus'', and members of ''Hydnellum''.<ref name="audu" />

==Distribution and habitat== The species occurs most frequently closer to the Pacific coast and under Sitka spruce.<ref name=":0" />

==References== {{Reflist|refs=

<ref name="Harrison 1964">{{cite journal |author=Harrison KA. |title=New or little known North American stipitate Hydnums |journal=Canadian Journal of Botany |year=1964 |volume=42 |issue=9 |pages=1205–1233 |doi=10.1139/b64-116}}</ref>

}}

==External links== *{{IndexFungorum|336274}}

{{Taxonbar|from=Q10626904}}

Category:Fungi described in 1964 Category:Fungi of North America Category:Inedible fungi atratus Category:Fungus species

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