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Fungi: Basidiomycota: Agaricomycetes: Boletales: Rhizopogonaceae: Rhizopogon luteolus Fr., 1817

Rhizopogon luteolus – Yellow false truffle

Synonym: Rhizopogon induratus.

Common name: yellow false truffle.

Russian names: Rizopogon zheltovatyy, Kornevets zheltovatyy.

Extract from Wikipedia article: Rhizopogon luteolus is an ectomycorrhizal fungus used as a soil inoculant in agriculture and horticulture. It was deliberately introduced into Pinus radiata plantations in Western Australia after it was observed to improve tree growth.

AI-generated description

Rhizopogon luteolus is a species of fungus that belongs to the family Rhizopogonaceae. It is characterized by its yellowish-brown to brownish-yellow color and subterranean growth habit, often forming mycorrhizal associations with coniferous trees. In St. Petersburg and Leningrad Oblast, Rhizopogon luteolus has been found in pine forests, typically growing in association with Scots pine (Pinus sylvestris). In north-western Russia, it is widely distributed and can be found in various types of coniferous forests, including those dominated by spruce (Picea abies) and fir (Abies sibirica). The fungus produces hypogeous fruiting bodies that are irregularly shaped and waxy in texture, typically measuring 2-5 cm in diameter.

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

Yellow false truffle fungus (<B>Rhizopogon luteolus</B>) on the site of old campfire in area of Lembolovo - Orekhovo, 35 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-08.htm">August 8, 2017</A>
LinkYellow false truffle fungus (Rhizopogon luteolus) on the site of old campfire in area of Lembolovo - Orekhovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia
Yellow false truffle fungus (<B>Rhizopogon luteolus</B>) west from Kannelyarvi, 45 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2018-08-31.htm">August 31, 2018</A>
LinkYellow false truffle fungus (Rhizopogon luteolus) west from Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 31, 2018
Location on mapsUnnamed Road, Leningradskaya oblast', Russia

AI-generated summary of observations

Observations of Rhizopogon luteolus in Leningrad Oblast and north-western Russia reveal its presence in specific areas. The fungus was found on the site of an old campfire in the area of Lembolovo - Orekhovo, approximately 35 miles north of Saint Petersburg, on August 8, 2017. Additionally, it was spotted west of Kannelyarvi, about 45 miles north of Saint Petersburg, on August 31, 2018. These sightings suggest that Rhizopogon luteolus can thrive in areas with potential disturbance, such as old campfire sites, and can be found in the region's forests during late summer. The fungus appears to be able to grow in areas with varied conditions, indicating its adaptability to different environments in north-western Russia. These observations provide insight into the habitat and distribution of Rhizopogon luteolus in this region.

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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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