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Russula subnigricans
Species of fungus From Wikipedia, the free encyclopedia
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Russula subnigricans, known as the rank russula,[2] or Nise-Kurohatsu (Japanese), meaning "false blackening russula" is a basidiomycete mushroom of the genus Russula found in East Asia. It is poisonous.
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Taxonomy
The species was named by Japanese mycologist Tsuguo Hongo in 1955.[1]
The name was formerly applied to the North American fungus Russula eccentrica in California.[3] It has been reclassified as Russula cantharellicola, where it grows in association with Quercus agrifolia (coast live oak) trees in California oak woodland habitats.[4]
Description
The flesh turns pale red when cut, but does not turn black, unlike Russula nigricans.[1]
Toxicity
Russula subnigricans is a poisonous mushroom,[2] and has been responsible for mushroom poisoning in Taiwan and Japan. The effect is a serious one, rhabdomyolysis.
The toxins responsible are the very unusual cycloprop-2-ene carboxylic acid (a toxic molecule consisting of only 10 atoms) and Russuphelin A (a heavily chlorinated polyphenolic).[5][6]
See also
References
External links
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