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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Psathyrellaceae: Lacrymaria lacrymabunda (Bull.) Pat., 1887

Lacrymaria lacrymabunda – Weeping widow

Synonyms: Agaricus areolatus, Agaricus lacrymabundus, Agaricus macrourus, Agaricus velutinus, Coprinus velutinus, Drosophila velutina, Geophila lacrymabunda, Hypholoma aggregatum, Hypholoma boughtoni, Hypholoma lacrymabundum, Hypholoma velutinum, Lacrymaria velutina, Psathyra lacrymabunda, Psathyrella lacrymabunda, Psathyrella velutina, Psilocybe areolata, Psilocybe cernua.

Common name: weeping widow.

Russian name: Lakrimariya barkhatistaya.

Extract from Wikipedia article: Lacrymaria lacrymabunda is a species of fungus in the family Psathyrellaceae. It is found in North America, Central America, Europe, northern Asia, and New Zealand, where it grows on disturbed ground in woodland, gardens, and parks. Although it is sometimes listed as an edible species, some individuals report developing stomach upset after eating it.

AI-generated description

Lacrymaria lacrymabunda is a species of amoeboid protist, specifically a heterotrophic flagellate. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found in freshwater environments, including lakes, rivers, and ponds, often associated with organic-rich sediments and decaying plant material. The fungus is characterized by its distinctive tear-drop shaped cells with a long, thin flagellum.

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

Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) on mushroom show in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-05-27.htm">May 27, 2017</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) on mushroom show in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 27, 2017
Location on mapsulitsa Professora Popova, 2к1, Sankt-Peterburg, Russia, 197022
Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) on mushroom show in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-05-27.htm">May 27, 2017</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) on mushroom show in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 27, 2017
Location on mapsulitsa Professora Popova, 2к1, Sankt-Peterburg, Russia, 197022
Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, <A HREF="../date-en/2017-06-10.htm">June 10, 2017</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, June 10, 2017
Location on mapsDachnaya ul., Leningradskaya oblast', Russia, 188664
Caps of weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, <A HREF="../date-en/2017-06-10.htm">June 10, 2017</A>
LinkCaps of weeping widow mushrooms (Lacrymaria lacrymabunda) near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, June 10, 2017
Location on mapsDachnaya ul., Leningradskaya oblast', Russia, 188664
Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2017-06-14.htm">June 14, 2017</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) near Dibuny, north-west from Saint Petersburg, Russia, June 14, 2017
Location on mapsZapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Caps of weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2017-06-14.htm">June 14, 2017</A>
LinkCaps of weeping widow mushrooms (Lacrymaria lacrymabunda) near Dibuny, north-west from Saint Petersburg, Russia, June 14, 2017
Location on mapsZapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) near Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-09.htm">September 9, 2017</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) near Lembolovo, 40 miles north from Saint Petersburg. Russia, September 9, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Weeping widow mushrooms (<B>Lacrymaria lacrymabunda</B>) on roadside near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2018-09-03.htm">September 3, 2018</A>
LinkWeeping widow mushrooms (Lacrymaria lacrymabunda) on roadside near Dibuny, north-west from Saint Petersburg, Russia, September 3, 2018
Location on mapsLeninskaya Tropa, Sankt-Peterburg, Russia, 197758

AI-generated summary of observations

Observations of Lacrymaria lacrymabunda in Leningrad Oblast and north-western Russia revealed the fungus's presence in various locations. The species was found in the Botanic Gardens of Komarov Botanical Institute in Saint Petersburg on May 27, 2017. It was also spotted near Kavgolovskoe Lake in Toksovo, a suburb of Saint Petersburg, on June 10, 2017, and near Dibuny, north-west of Saint Petersburg, on June 14, 2017. Further sightings occurred near Lembolovo, 40 miles north of Saint Petersburg, on September 9, 2017, and on a roadside near Dibuny on September 3, 2018. The fungus was observed in different stages, including caps, and appeared to thrive in various environments, from botanical gardens to natural habitats and roadsides, throughout the region during spring and summer months. Repeat sightings in similar locations suggest the species' persistence in the area.

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Acknowledgements

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

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