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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Clavariaceae: Clavulinopsis helvola (Pers.) Corner, 1950

Clavulinopsis helvola – Yellow club

Synonyms: Clavaria angustata, Clavaria dissipabilis, Clavaria echinospora, Clavaria flammans, Clavaria helvola, Clavaria inaequalis, Clavaria similis, Clavaria sylvatica, Clavaria teres, Donkella helvola, Ramariopsis helvola.

Common name: yellow club.

Russian names: Klavulinopsis palevyy, Rogatik palevyy.

Extract from Wikipedia article: Clavulinopsis helvola, commonly known as the yellow club fungus, is a mushroom in the family Clavariaceae.

AI-generated description

Clavulinopsis helvola is a species of fungus that belongs to the family Clavariaceae. It is characterized by its bright yellow to orange-yellow club-shaped fruiting bodies, typically 2-6 cm tall and 0.5-2 mm wide. In St. Petersburg, Leningrad Oblast, and north-western Russia, Clavulinopsis helvola has been found growing in groups or clusters on soil, moss, and decaying wood in coniferous and mixed forests, often in association with spruce, pine, and birch trees. The fungus typically fruits from July to October, with a peak in August and September. It is considered a rare species in the region, but can be locally abundant in suitable habitats.

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

Yellow club fungus (<B>Clavulinopsis helvola</B>) in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, <A HREF="../date-en/2017-10-02.htm">October 2, 2017</A>
LinkYellow club fungus (Clavulinopsis helvola) in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
Location on mapsDoroga K Shalashu Lenina, Sankt-Peterburg, Russia, 197701
Yellow club fungus (<B>Clavulinopsis helvola</B>) in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, <A HREF="../date-en/2017-10-02.htm">October 2, 2017</A>
LinkYellow club fungus (Clavulinopsis helvola) in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
Location on mapsDoroga K Shalashu Lenina, Sankt-Peterburg, Russia, 197701

AI-generated summary of observations

Observations of Clavulinopsis helvola in Leningrad Oblast and north-western Russia reveal its presence in oak groves. Specifically, the fungus was found near Razliv Lake in the Sestroretsk area, west of Saint Petersburg, on October 2, 2017. The sightings occurred in two locations within the same oak grove, indicating a possible abundance of the species in this region. The observations were made during the month of October, suggesting that Clavulinopsis helvola may be active during the autumn season in this part of Russia. The fungus was identified as Yellow club fungus, characterized by its distinctive yellow color and club-like shape. These findings provide insight into the distribution and habitat preferences of Clavulinopsis helvola in north-western Russia. Further studies could investigate the ecological role of this species in oak ecosystems. The sightings highlight the importance of continued exploration of fungal diversity in the 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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