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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Mycenaceae: Mycena sanguinolenta (Alb. & Schwein.) P. Kumm., 1871

Mycena sanguinolenta – Bleeding bonnet

Synonyms: Agaricus cruentus, Agaricus sanguinolentus, Galactopus sanguinolentus, Mycena cruenta.

Common name: bleeding bonnet.

Russian names: Mitsena krovotochashchaya, Mitsena krovavaya.

Extract from Wikipedia article: Mycena sanguinolenta, commonly known as the bleeding bonnet, the smaller bleeding Mycena, or the terrestrial bleeding Mycena, is a species of mushroom in the Mycenaceae family. It is a common and widely distributed species, and has been found in North America, Europe, Australia, and Asia. The fungus produces reddish-brown to reddish-purple fruit bodies with conic to bell-shaped caps up to 1.5 cm (0.6 in) wide held by slender stipes up to 6 cm (2.4 in) high. When fresh, the fruit bodies will "bleed" a dark reddish-purple sap. The similar Mycena haematopus is larger, and grows on decaying wood, usually in clumps. M. sanguinolenta contains alkaloid pigments that are unique to the species, may produce an antifungal compound, and is bioluminescent. The edibility of the mushroom has not been determined.

AI-generated description

Mycena sanguinolenta is a species of fungus that grows on decaying wood, typically in coniferous forests. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found to thrive in moist environments, often near rivers and streams. The fungus produces small, bell-shaped caps that range in color from reddish-brown to pinkish-gray, with a distinctive bloody red juice that seeps from the gills when damaged. Fruitings typically occur from late summer to early autumn, with a peak in September. The species is considered rare in the region, but can be locally abundant in suitable habitats, such as old-growth forests and woodlands with rich soil and high humidity.

Photos of this mushroom from the area of St. Petersburg, Russia

Bleeding bonnet mushroom (<B>Mycena sanguinolenta</B>) on a base of a tree in Alexander Park in Pushkin, suburb of Saint Petersburg. Russia, <A HREF="../date-en/2016-07-31.htm">July 31, 2016</A>
LinkBleeding bonnet mushroom (Mycena sanguinolenta) on a base of a tree in Alexander Park in Pushkin, suburb of Saint Petersburg. Russia, July 31, 2016
Bleeding bonnet mushrooms (<B>Mycena sanguinolenta</B>) at the base of a spruce(?) tree in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, <A HREF="../date-en/2016-08-22.htm">August 22, 2016</A>
LinkBleeding bonnet mushrooms (Mycena sanguinolenta) at the base of a spruce(?) tree in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, August 22, 2016
Location on mapsalleya Chyornoy Shlyapy, Pavlovsk, g. Sankt-Peterburg, Russia
Bleeding bonnet mushrooms (<B>Mycena sanguinolenta</B>) around a small swamp in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-06.htm">July 6, 2017</A>
LinkBleeding bonnet mushrooms (Mycena sanguinolenta) around a small swamp in Sosnovka Park. Saint Petersburg, Russia, July 6, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia
Close up of bleeding bonnet mushrooms (<B>Mycena sanguinolenta</B>) found near a small swamp in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-06.htm">July 6, 2017</A>
LinkClose up of bleeding bonnet mushrooms (Mycena sanguinolenta) found near a small swamp in Sosnovka Park. Saint Petersburg, Russia, July 6, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia
Bleeding bonnet (<B>Mycena sanguinolenta</B>) in a dark spruce forest near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-06.htm">August 6, 2017</A>
LinkBleeding bonnet (Mycena sanguinolenta) in a dark spruce forest near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
Bleeding bonnet mushrooms (<B>Mycena sanguinolenta</B>)(?) in a pine forest in Lembolovo, 35 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-08.htm">August 8, 2017</A>
LinkBleeding bonnet mushrooms (Mycena sanguinolenta)(?) in a pine forest in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695

AI-generated summary of observations

Observations of Mycena sanguinolenta in Leningrad Oblast and north-western Russia reveal that the fungus grows in various environments. It was found at the base of trees, including a spruce tree in Pavlovsk Park and a tree in Alexander Park in Pushkin. The mushroom also thrives around small swamps, such as in Sosnovka Park, where it was observed on July 6, 2017. Additionally, Mycena sanguinolenta grows in dark spruce forests, like the one near Dibuny, and in pine forests, such as in Lembolovo, 35 miles north of Saint Petersburg. The fungus was spotted during the summer months, from July to August, in 2016 and 2017. Close-up observations in Sosnovka Park provided detailed views of the mushroom's appearance. Overall, Mycena sanguinolenta appears to be widely distributed in the region, tolerating different habitats and conditions.

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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