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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Psathyrellaceae: Coprinellus angulatus (Peck) Redhead, Vilgalys & Moncalvo, 2001

Coprinellus angulatus – Bishop's inkcap

Synonyms: Coprinus angulatus, Coprinus boudieri.

Common name: bishop's inkcap.

Russian name: Navoznik uglovatyy.

Extract from Wikipedia article: Coprinellus angulatus is a species of mushroom in the Psathyrellaceae family. First described by mycologist Charles Horton Peck in 1874 and placed in the genus Coprinus, a 2001 phylogenetic study resulted in a major reorganization and reshuffling of that genus, and this species was transferred to Coprinellus.

AI-generated description

Coprinellus angulatus is a species of fungus in the family Psathyrellaceae. It is characterized by its small to medium-sized fruiting bodies with bell-shaped to conical caps that are 1-3 cm in diameter, typically grayish-brown to dark brown in color, and often have an angular or lobed shape. The gills are crowded, free, and turn black as the spores mature. In St. Petersburg, Leningrad Oblast, and north-western Russia, Coprinellus angulatus has been found growing in clusters on decaying wood, stumps, and other organic debris, often in moist, shaded areas such as forests, parks, and gardens. It typically fruits from late summer to early autumn.

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

Small inkcap mushroos <B>Coprinellus angulatus</B> on old bonfire site near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, <A HREF="../date-en/2017-06-16.htm">June 16, 2017</A>
LinkSmall inkcap mushroos Coprinellus angulatus on old bonfire site near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, June 16, 2017
Inkcap mushroos <B>Coprinellus angulatus</B> near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, <A HREF="../date-en/2017-06-16.htm">June 16, 2017</A>
LinkInkcap mushroos Coprinellus angulatus near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, June 16, 2017
Inkcap mushroos <B>Coprinellus angulatus</B> on a site of old bonfire on roadside near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, <A HREF="../date-en/2017-06-16.htm">June 16, 2017</A>
LinkInkcap mushroos Coprinellus angulatus on a site of old bonfire on roadside near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, June 16, 2017
Location on mapsNovyy per., Kavgolovo, Leningradskaya oblast', Russia, 188667
Inkcap mushroom <B>Coprinellus angulatus</B>(?) and small brittlestem mushrooms Psathyrella prona(?) near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-15.htm">July 15, 2017</A>
LinkInkcap mushroom Coprinellus angulatus(?) and small brittlestem mushrooms Psathyrella prona(?) near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Bishop's inkcap mushrooms (<B>Coprinellus angulatus</B>) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-09-02.htm">September 2, 2017</A>
LinkBishop's inkcap mushrooms (Coprinellus angulatus) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017
Location on mapsUnnamed Road, St Petersburg, Russia
Bishop's inkcap mushrooms (<B>Coprinellus angulatus</B>) on burnt ground near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2018-08-29.htm">August 29, 2018</A>
LinkBishop's inkcap mushrooms (Coprinellus angulatus) on burnt ground near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, August 29, 2018
Location on mapsLeningrad Oblast, Russia, 188667
Bishop's inkcap mushrooms (<B>Coprinellus angulatus</B>) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2019-05-30.htm">May 30, 2019</A>
LinkBishop's inkcap mushrooms (Coprinellus angulatus) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, May 30, 2019
Location on mapsUlitsa Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214
Side view of Bishop's inkcap mushrooms (<B>Coprinellus angulatus</B>) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2019-05-30.htm">May 30, 2019</A>
LinkSide view of Bishop's inkcap mushrooms (Coprinellus angulatus) on burnt ground in Sosnovka Park. Saint Petersburg, Russia, May 30, 2019
Location on mapsUlitsa Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214

AI-generated summary of observations

Observations of Coprinellus angulatus in Leningrad Oblast and north-western Russia reveal that the fungus thrives in areas with burnt ground, particularly near old bonfire sites. On June 16, 2017, the species was found on an old bonfire site near Kavgolovskoe Lake in Toksovo, and again on the same site a month later. Similar findings were recorded in Sosnovka Park, Saint Petersburg, on burnt ground on September 2, 2017, and again on May 30, 2019. The fungus was also observed near Dibuny, north-west of Saint Petersburg, on July 15, 2017, and near Kavgolovskoe Lake on August 29, 2018. These observations suggest that Coprinellus angulatus is well adapted to colonizing areas with disturbed soil and burnt vegetation in the region. The species appears to be relatively common in these areas, with multiple sightings over a two-year period.

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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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