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Fungi: Basidiomycota: Agaricomycetes: Auriculariales: Not assigned: Pseudohydnum gelatinosum (Scop.) P. Karst., 1868

Pseudohydnum gelatinosum – Jelly tooth

Synonyms: Exidia gelatinosa, Hydnogloea gelatinosa, Hydnum gelatinosum, Steccherinum gelatinosum, Tremellodon gelatinosus.

Common name: jelly tooth.

Russian names: Psevdoezhovik studenistyy, Lozhnoezhovik, Psevdokhidium zhelatinovyy, Ledyanoy grib, Psevdoezhovik, Psevdogidnum.

Extract from Wikipedia article: Pseudohydnum gelatinosum (common names include toothed jelly fungus, false hedgehog mushroom, cat's tongue, and white jelly mushroom) is an edible mushroom. Although bland, it can be candied or marinated. A widely distributed species, it is found in Asia, Australia, New Zealand, Europe, North America, Central America, and South America. The fungus grows in woodlands on dead trunks, logs, and stumps.

AI-generated description

Pseudohydnum gelatinosum is a species of jelly fungus that grows on decaying wood, particularly coniferous trees. In St. Petersburg and Leningrad Oblast, it has been found in forests and parks, typically fruiting from July to October. In north-western Russia, the fungus is widely distributed, occurring in various habitats, including moist forests, swamps, and along rivers. It forms gelatinous, tooth-like fruiting bodies that are white to pale yellow in color, and has a soft, jelly-like texture. The species is considered rare in some areas of north-western Russia, but can be locally common in suitable habitats.

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

Toothed jelly fungus (<B>Pseudohydnum gelatinosum</B> mushroom) together with bolete mushrooms grown nearby in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2016-08-25.htm">August 25, 2016</A>
LinkToothed jelly fungus (Pseudohydnum gelatinosum mushroom) together with bolete mushrooms grown nearby in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Toothed jelly fungus (<B>Pseudohydnum gelatinosum</B> mushroom) on rotten timber in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2016-08-25.htm">August 25, 2016</A>
LinkToothed jelly fungus (Pseudohydnum gelatinosum mushroom) on rotten timber in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Close up of toothed jelly fungus (<B>Pseudohydnum gelatinosum</B> mushroom) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2016-08-25.htm">August 25, 2016</A>
LinkClose up of toothed jelly fungus (Pseudohydnum gelatinosum mushroom) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Jelly tooth fungus (<B>Pseudohydnum gelatinosum</B>) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkJelly tooth fungus (Pseudohydnum gelatinosum) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197701
Jelly tooth mushrooms (<B>Pseudohydnum gelatinosum</B>) on a stump in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkJelly tooth mushrooms (Pseudohydnum gelatinosum) on a stump in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197701
Caps of jelly tooth mushrooms (<B>Pseudohydnum gelatinosum</B>) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkCaps of jelly tooth mushrooms (Pseudohydnum gelatinosum) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197701
Back lit jelly tooth mushrooms (<B>Pseudohydnum gelatinosum</B>) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkBack lit jelly tooth mushrooms (Pseudohydnum gelatinosum) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197701
Jelly tooth fungus (<B>Pseudohydnum gelatinosum</B>) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-30.htm">August 30, 2017</A>
LinkJelly tooth fungus (Pseudohydnum gelatinosum) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 30, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188732
Jelly tooth fungus (<B>Pseudohydnum gelatinosum</B>) on a stump in Petiayarvi, 50 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-30.htm">August 30, 2017</A>
LinkJelly tooth fungus (Pseudohydnum gelatinosum) on a stump in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 30, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188732
Jelly tooth mushrooms (<B>Pseudohydnum gelatinosum</B>) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-30.htm">August 30, 2017</A>
LinkJelly tooth mushrooms (Pseudohydnum gelatinosum) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 30, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188732
Jelly tooth mushrooms (<B>Pseudohydnum gelatinosum</B>) in Tarkhovka near Sestroretsk, west from Saint Petersburg. Russia, <A HREF="../date-en/2018-08-27.htm">August 27, 2018</A>
LinkJelly tooth mushrooms (Pseudohydnum gelatinosum) in Tarkhovka near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018
Location on mapsSaint Petersburg, Russia, 197701
Jelly tooth fungus (<B>Pseudohydnum gelatinosum</B>) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, <A HREF="../date-en/2018-09-08.htm">September 8, 2018</A>
LinkJelly tooth fungus (Pseudohydnum gelatinosum) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018
Location on mapsOkruzhnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625

AI-generated summary of observations

In Leningrad Oblast and north-western Russia, Pseudohydnum gelatinosum was observed growing in various locations. In Sosnovka Park, it grew near bolete mushrooms and on rotten timber. Similar observations were made in Tarkhovka Park, where it was found on stumps and in large numbers. The fungus was also spotted in Petiayarvi, 50 miles north of Saint Petersburg, growing on stumps and in the surrounding area. Further observations were made in Pavlovsk Park, specifically in the New Sylvia area, and in Tarkhovka near Sestroretsk. The fungus appeared in different forms, including solo specimens and large groups, with varying lighting conditions highlighting its unique texture and appearance. Overall, Pseudohydnum gelatinosum was found to thrive in wooded areas with abundant decaying wood, particularly in the summer months of August and September.

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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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