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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Hymenogastraceae: Hypholoma elongatum (Pers.) Ricken, 1915

Hypholoma elongatum – Sphagnum brownie

Synonyms: Agaricus elongatus, Agaricus udus, Geophila elongata, Naematoloma elongatum, Psilocybe elongata, Psilocybe uda.

Common name: sphagnum brownie.

Russian names: Lozhnoopionok dlinnonogiy, Gifoloma udlinennaya.

AI-generated description

Hypholoma elongatum is a species of fungus that belongs to the family Hymenogastraceae. It is characterized by its elongated to cylindrical cap, typically 2-6 cm tall and 1-3 cm wide, with a yellowish-brown to reddish-brown color and fibrillose to scaly surface. The gills are crowded, narrow, and yellowish-brown. In St. Petersburg, Leningrad Oblast, and north-western Russia, Hypholoma elongatum has been found growing in clusters on stumps, logs, and other decaying wood, particularly of coniferous trees, from July to October. It is considered a rare species in the region, with most records coming from mature forests and forest edges.

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

Small mushrooms <B>Hypholoma elongatum</B> with long stems in moss in Boloto Lammin-Suo swamp reserve. Zelenogorsk near Saint Petersburg, Russia, <A HREF="../date-en/2017-07-08.htm">July 8, 2017</A>
LinkSmall mushrooms Hypholoma elongatum with long stems in moss in Boloto Lammin-Suo swamp reserve. Zelenogorsk near Saint Petersburg, Russia, July 8, 2017
Close up of mushrooms <B>Hypholoma elongatum</B> in moss in Boloto Lammin-Suo swamp reserve. Zelenogorsk near Saint Petersburg, Russia, <A HREF="../date-en/2017-07-08.htm">July 8, 2017</A>
LinkClose up of mushrooms Hypholoma elongatum in moss in Boloto Lammin-Suo swamp reserve. Zelenogorsk near Saint Petersburg, Russia, July 8, 2017
Mushrooms <B>Hypholoma elongatum</B> taken from area of Shchuchye Lake in Komarovo, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-08.htm">July 8, 2017</A>
LinkMushrooms Hypholoma elongatum taken from area of Shchuchye Lake in Komarovo, west from Saint Petersburg. Russia, July 8, 2017
Mushrooms <B>Hypholoma elongatum</B> in moss in Posiolok near Vyritsa, south from Saint Petersburg, Russia, <A HREF="../date-en/2017-07-09.htm">July 9, 2017</A>
LinkMushrooms Hypholoma elongatum in moss in Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
Location on mapsUnnamed Road, Vyritsa, Leningradskaya oblast', Russia, 188381
Close up of sphagnum brownie mushrooms (<B>Hypholoma elongatum</B>)(?) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-16.htm">July 16, 2017</A>
LinkClose up of sphagnum brownie mushrooms (Hypholoma elongatum)(?) in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 194064
Sphagnum brownie mushrooms (<B>Hypholoma elongatum</B>)(?) in moss in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-16.htm">July 16, 2017</A>
LinkSphagnum brownie mushrooms (Hypholoma elongatum)(?) in moss in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 194064
Peat brownie mushrooms (Bogbodia uda) (pale color) and sphagnum brownie (<B>Hypholoma elongatum</B>) (more orange) near Orekhovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2018-08-24.htm">August 24, 2018</A>
LinkPeat brownie mushrooms (Bogbodia uda) (pale color) and sphagnum brownie (Hypholoma elongatum) (more orange) near Orekhovo, north from Saint Petersburg. Russia, August 24, 2018
Location on mapsLeningrad Oblast, Russia, 188731

AI-generated summary of observations

In Leningrad Oblast and north-western Russia, Hypholoma elongatum was observed in various locations. In the Boloto Lammin-Suo swamp reserve near Zelenogorsk, small mushrooms with long stems were found growing in moss on July 8, 2017. Similar observations were made in Komarovo, west of Saint Petersburg, and in Posiolok near Vyritsa, south of Saint Petersburg, on July 8-9, 2017. The fungus was also spotted in Sosnovka Park, Saint Petersburg, on July 16, 2017, growing in moss. Another observation was made near Orekhovo, north of Saint Petersburg, on August 24, 2018, where it co-existed with Peat brownie mushrooms (Bogbodia uda). The mushrooms were typically found in mossy areas, and their color varied from orange to pale. These observations suggest that Hypholoma elongatum is relatively common in the region, particularly in wetland areas.

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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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