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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Not assigned: Rhizocybe pruinosa (P. Kumm.) Vizzini, G. Moreno, P. Alvarado & Consiglio, 2015

Rhizocybe pruinosa

Synonyms: Agaricus pruinosus, Clitocybe pruinosa, Omphalia cyathiformis.

Russian name: Govorushka snezhnaya.

AI-generated description

Rhizocybe pruinosa is a species of fungus that belongs to the family Tricholomataceae. It is characterized by its small to medium-sized fruiting bodies with a pruinose cap and white to cream-colored gills. In St. Petersburg, Leningrad Oblast, and north-western Russia, Rhizocybe pruinosa has been found growing in coniferous and mixed forests, often associated with mosses and lichens on tree trunks, stumps, and forest floors. The fungus typically fruits from July to October, with a peak in August and September. It is considered a rare species in the region, but its distribution and abundance may vary depending on environmental factors such as climate, soil quality, and vegetation composition.

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

Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) in a spruce forest near Chornaya River between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-03.htm">April 3, 2017</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) in a spruce forest near Chornaya River between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, April 3, 2017
Location on mapsUnnamed Road, g. Sankt-Peterburg, Russia, 197758
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) under spruce trees near Chornaya River between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-03.htm">April 3, 2017</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under spruce trees near Chornaya River between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, April 3, 2017
Location on mapsUnnamed Road, g. Sankt-Peterburg, Russia, 197758
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) found between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-03.htm">April 3, 2017</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) found between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, April 3, 2017
Location on mapspr. Raevskogo, 22, Sankt-Peterburg, Russia, 194064
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) found in spruce forest between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-03.htm">April 3, 2017</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) found in spruce forest between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, April 3, 2017
Location on mapspr. Raevskogo, 24, Sankt-Peterburg, Russia, 194064
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-07.htm">April 7, 2017</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 2017
Location on mapsPrimorskoye sh., g. Sankt-Peterburg, Russia, 197755
Funnel mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) under large spruce trees between Lisiy Nos and Morskaya, west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-03.htm">May 3, 2021</A>
LinkFunnel mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under large spruce trees between Lisiy Nos and Morskaya, west from Saint Petersburg. Russia, May 3, 2021
Location on mapsPrimorskoye Hwy, Sankt-Peterburg, Russia, 197755
Funnel mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) in a spruce forest between Lisiy Nos and Morskaya, west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-03.htm">May 3, 2021</A>
LinkFunnel mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) in a spruce forest between Lisiy Nos and Morskaya, west from Saint Petersburg. Russia, May 3, 2021
Location on mapsPrimorskoye Hwy, Sankt-Peterburg, Russia, 197755
Funnel mushroom <B>Rhizocybe pruinosa</B> in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2021-05-05.htm">May 5, 2021</A>
LinkFunnel mushroom Rhizocybe pruinosa in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
Location on mapsLeninskaya Tropa, Sankt-Peterburg, Russia, 197758
Underside of a funnel mushroom <B>Rhizocybe pruinosa</B> near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2021-05-05.htm">May 5, 2021</A>
LinkUnderside of a funnel mushroom Rhizocybe pruinosa near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
Location on mapsLeninskaya Tropa, Sankt-Peterburg, Russia, 197758
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) on moss in a spruce forest in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-10.htm">May 10, 2021</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) on moss in a spruce forest in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197701
Close-up of funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-10.htm">May 10, 2021</A>
LinkClose-up of funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197701
Funnel cap mushrooms <B>Rhizocybe pruinosa</B> (Clitocybe pruinosa) under spruce trees in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-10.htm">May 10, 2021</A>
LinkFunnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under spruce trees in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197701

AI-generated summary of observations

Observations of the fungus Rhizocybe pruinosa in Leningrad Oblast and north-western Russia reveal that it typically grows in spruce forests. The mushrooms were found under spruce trees near Chornaya River between Pesochnaya and Dibuny, as well as in areas such as Blizhnie Dubki, Lisiy Nos, and Tarkhovka Park. They often grow on moss and can be found in large numbers under large spruce trees. The observations were made in April and May, suggesting that the fungus fruits during this time period. The mushrooms were photographed in various locations, including near Dibuny, Lisiy Nos, and Morskaya, all of which are located west or north-west of Saint Petersburg. The underside of the funnel-shaped cap was also observed, providing additional details about the species' morphology.

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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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