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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Pleurotaceae: Pleurotus calyptratus (Lindblad ex Fr.) Sacc., 1887

Pleurotus calyptratus

Synonyms: Agaricus calyptratus, Dendrosarcus calyptratus, Pleurotus djamor, Tectella calyptrata.

Russian names: Vioshenka pokrytaya, Vioshenka odinochnaya, Vioshenka zachekhlionnaya.

AI-generated description

Pleurotus calyptratus is a species of edible mushroom that grows on deciduous trees, particularly willow and poplar. In St. Petersburg and Leningrad Oblast, it typically fruits from June to October, with a peak in July and August. It has been found in various habitats, including parks, gardens, and along rivers and streams. In north-western Russia, P. calyptratus is widely distributed, with records from the Murmansk, Arkhangelsk, and Vologda Oblasts, as well as the Republic of Karelia. The fungus tends to prefer moist, fertile soils and partial shade, often growing in clusters or rows on the trunks and branches of its host trees.

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

Oyster mushrooms <B>Pleurotus calyptratus</B> on an aspen log in Sablino, south from Saint Petersburg. Russia, <A HREF="../date-en/2017-05-25.htm">May 25, 2017</A>
LinkOyster mushrooms Pleurotus calyptratus on an aspen log in Sablino, south from Saint Petersburg. Russia, May 25, 2017
Location on mapsТД Вимос, Советский пр., 195, Ульяновское, Leningrad 187010, Russia
Oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, <A HREF="../date-en/2017-05-25.htm">May 25, 2017</A>
LinkOyster mushrooms Pleurotus calyptratus on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, May 25, 2017
Location on mapsТД Вимос, Советский пр., 195, Ульяновское, Leningrad 187010, Russia
Caps of oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, <A HREF="../date-en/2017-05-25.htm">May 25, 2017</A>
LinkCaps of oyster mushrooms Pleurotus calyptratus on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, May 25, 2017
Location on mapsТД Вимос, Советский пр., 195, Ульяновское, Leningrad 187010, Russia
Young oyster mushroom <B>Pleurotus calyptratus</B> on a fallen aspen north from Pole Chudes Garden in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkYoung oyster mushroom Pleurotus calyptratus on a fallen aspen north from Pole Chudes Garden in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkOyster mushrooms Pleurotus calyptratus on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Young and mature oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkYoung and mature oyster mushrooms Pleurotus calyptratus on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Caps of oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkCaps of oyster mushrooms Pleurotus calyptratus on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Large and small caps of oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkLarge and small caps of oyster mushrooms Pleurotus calyptratus on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Cap edge of oyster mushrooms <B>Pleurotus calyptratus</B> on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-21.htm">May 21, 2021</A>
LinkCap edge of oyster mushrooms Pleurotus calyptratus on a fallen aspen in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188663
Oyster mushrooms <B>Pleurotus calyptratus</B> on an aspen branch on Leninskaya Tropa Trail between Dibuny and Razliv Lake, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-24.htm">May 24, 2021</A>
LinkOyster mushrooms Pleurotus calyptratus on an aspen branch on Leninskaya Tropa Trail between Dibuny and Razliv Lake, north-west from Saint Petersburg. Russia, May 24, 2021
Location on mapsLeninskaya Tropa, Sankt-Peterburg, Russia, 197758

AI-generated summary of observations

Pleurotus calyptratus was observed growing on aspen logs and fallen trees in Leningrad Oblast and north-western Russia. In Sablino, south of Saint Petersburg, the fungus was found on an aspen log and a fallen tree on May 25, 2017. Similarly, in Kuzmolovo, north of Saint Petersburg, it was observed on fallen aspens on May 21, 2021, with both young and mature mushrooms present. The caps of the mushrooms were also observed, ranging from small to large, and the cap edges were noted. Additionally, the fungus was found growing on an aspen branch on Leninskaya Tropa Trail between Dibuny and Razliv Lake, north-west of Saint Petersburg, on May 24, 2021. The observations suggest that Pleurotus calyptratus is commonly associated with aspen in this region.

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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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