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Russula subnigricans – a poisonous mushroom causing rhabdomyolysis in Japan, China, and Taiwan. Russula virescens – an excellent edible, recognizable by the green and distinctly crackled cap cuticle; Russula xerampelina – an edible russula that smells and tastes like shrimp or seafood.
Russula emetica, commonly known as the sickener, emetic russula, or vomiting russula, is a basidiomycete mushroom, and the type species of the genus Russula. It has a red, convex to flat cap up to 8.5 cm (3.3 in) in diameter, with a cuticle that can be peeled off almost to the centre. The gills are white to pale cream, and closely spaced.
Russula emetica: The sickener lactarorufin A, methoxyfuranalcohol, and R. emetica unnamed compound [39] North America, Europe, North Africa and Asia Russula aurea. Russula cyanoxantha. Russula subnigricans: unknown Sarcosphaera coronaria: Pink crown North America, Europe, North Africa and Asia Scleroderma citrinum: Common earthball unknown
Russula subnigricans is a poisonous mushroom, 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).
Russula virescens is a basidiomycete mushroom of the genus Russula, and is commonly known as the green-cracking russula, the quilted green russula, or the green brittlegill. It can be recognized by its distinctive pale green cap that measures up to 15 cm (6 in) in diameter, the surface of which is covered with darker green angular patches.
"Poisonous mushrooms will turn rice red when boiled." [17] – A number of Laotian refugees were hospitalized after eating mushrooms (probably toxic Russula species) deemed safe by this folklore rule and this misconception cost at least one person her life. [43] [44] "Poisonous mushrooms have a pointed cap. Edible ones have a flat, rounded cap."
Among toxic substances, Lactarius turpis contains the mutagenic alkaloid necatorin, [121] and the small compound cycloprop-2-ene carboxylic acid has been identified as the toxic agent in Russula subnigricans. [133] Some secondary metabolites showed antibiotic properties in laboratory tests. [128]
Russula aeruginea, also known as the grass-green russula, the tacky green russula, or the green russula, is an edible Russula mushroom. Widely distributed in northern temperate regions, it is usually found under birch, mostly in pine forests. The very poisonous death cap can have a similar appearance, especially from above.