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Fungi: Basidiomycota: Tremellomycetes: Tremellales: Hyaloriaceae: Myxarium nucleatum Wallr., 1833

Myxarium nucleatum

Synonyms: Exidia alboglobosa, Exidia beardsleei, Exidia gemmata, Exidia nucleata, Exidia tremelloides, Myxarium atratum, Myxarium hyalinum, Myxarium tremelloides, Naematelia atrata, Naematelia gemmata, Naematelia nucleata, Tremella albida, Tremella gemmata, Tremella nucleata.

Extract from Wikipedia article: Myxarium nucleatum (common names crystal brain or granular jelly roll) is a jelly fungus in the family Hyaloriaceae. The sporocarps (fruit bodies) are watery white and gelatinous with small, white, mineral inclusions. It is a common, wood-rotting species in Europe and North America, typically growing on dead attached or fallen branches of broadleaf trees.

AI-generated description

Myxarium nucleatum is a species of fungus that belongs to the family Hyaloriaceae. It is characterized by its effused-reflexed to pileate basidiocarps, white to cream-colored pore surface, and cylindrical to allantoid spores. In St. Petersburg, Leningrad Oblast, and north-western Russia, Myxarium nucleatum has been found growing on dead deciduous trees, particularly on alter, birch, and willow, in moist and shaded areas. The fungus is relatively rare in the region, but can be locally common in suitable habitats, such as old-growth forests and forest edges.

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

Crust fungus Sterellum rufum (Peniophora rufa) and watery white jelly mushrooms <B>Myxarium nucleatum</B>(?) on a dead branch taken from area near Pervomayskoe, Vyborg Region. Russia, <A HREF="../date-en/2016-09-30.htm">September 30, 2016</A>
LinkCrust fungus Sterellum rufum (Peniophora rufa) and watery white jelly mushrooms Myxarium nucleatum(?) on a dead branch taken from area near Pervomayskoe, Vyborg Region. Russia, September 30, 2016

AI-generated summary of observations

Observations of the fungus Myxarium nucleatum in Leningrad Oblast and north-western Russia reveal its presence on dead branches. On September 30, 2016, a dead branch from an area near Pervomayskoe, Vyborg Region, was found to have crust fungus Sterellum rufum (Peniophora rufa) and watery white jelly mushrooms Myxarium nucleatum(?). This suggests that Myxarium nucleatum can coexist with other fungi on decaying wood. The specific location and date of the observation provide insight into the habitat and timing of the fungus's growth. Further observations in this region may reveal more about the distribution and behavior of Myxarium nucleatum, including its potential interactions with other organisms in the area. The presence of this fungus in Leningrad Oblast and north-western Russia highlights the diversity of fungal species in these regions.

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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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