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Trichia decipiens – Nuijanuoranen

Synonyms: Arcyria decipiens, Lycoperdon pusillum, Trichia cerina, Trichia fallax, Trichia fernbankensis, Trichia fulva, Trichia furcata, Trichia nana, Trichia pusilla, Trichia stuhlmannii, Trichia virescens.

Common name: Nuijanuoranen.

Russian name: Trikhiya obmanchivaya.

Extract from Wikipedia article: Trichia decipiens is a worldwide widespread slime mould species from the order Trichiida.

AI-generated description

Trichia decipiens is a species of slime mold that belongs to the class Mycetozoa. It is characterized by its small to medium-sized sporocarps, typically 0.5-2 mm in height, with a cylindrical or subcylindrical shape and a bright yellow to orange-yellow color. The species is found on decayed wood, particularly coniferous logs, in moist environments. In St. Petersburg, Leningrad Oblast, and north-western Russia, Trichia decipiens has been recorded in various habitats, including forests, bogs, and urban areas, often associated with spruce, fir, and birch trees. The slime mold typically fruits from July to October, with a peak in August and September.

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

Trichia decipiens slime mold between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016
Unnamed Road, Leningradskaya oblast', Russia

Slime mold Nuijanuoranen (Trichia decipiens) near Pervomayskoe, Vyborg Region. Russia, September 30, 2016
«Скандинавия», Рощинское городское поселение, Выборгский район, Ленинградская область, Северо-Западный федеральный округ, Россия

Slime mold Trichia decipiens on a rotten stump near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Close up of slime mold Trichia decipiens on a rotten stump near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Pattern of slime mold Trichia decipiens on a rotten stump near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Slime mold Trichia decipiens on a rotten stump in spruce forest near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Young northern honey mushrooms (Armillaria borealis) with slime mold Trichia decipiens on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214

Slime mold Trichia decipiens in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214

Nuijanuoranen slime mold (Trichia decipiens) on a half burnt stump near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Close up of slime mold Trichia decipiens on a half burnt stump near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Nuijanuoranen slime mold (Trichia decipiens) covering a half burnt stump near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Orange slime mold Trichia decipiens on a half burnt stump near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Orange pellets of slime mold Trichia decipiens on a half burnt stump near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017
Unnamed Road, Sankt-Peterburg, Russia, 197758

Nuijanuoranen slime mold (Trichia decipiens) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 21, 2017
Primorskoye Shosse, Sankt-Peterburg, Russia, 197755

Slime mold (Trichia decipiens) on a stump in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 21, 2017
Primorskoye Shosse, Sankt-Peterburg, Russia, 197755

AI-generated summary of observations

Observations of Trichia decipiens slime mold in Leningrad Oblast and north-western Russia revealed its presence in various locations. The species was found on rotten stumps near Dibuny, Orekhovo, and Lembolovo, as well as in Sosnovka Park, Saint Petersburg. It was also observed on half-burnt stumps near Dibuny and in Blizhnie Dubki area near Lisiy Nos. The slime mold exhibited orange coloration and formed patterns on the substrate. In some cases, it co-occurred with young northern honey mushrooms (Armillaria borealis). The observations spanned from July to September 2016 and 2017, indicating that Trichia decipiens is active during this period in the region. The species appears to thrive on decaying wood, particularly in spruce forests and parks. Its distribution suggests a relatively wide range in Leningrad Oblast and north-western Russia.

Comments

• Search of mushroom species for given keywords "Trichia decipiens" was done through catalogueoflife.org.
• Selection of a particular species from the list of 6 species was performed automatically.
• Attributes of the species were taken from catalogueoflife.org.
• There is a Wikipedia article about this mushroom.

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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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