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Fungi: Basidiomycota: Agaricomycetes: Polyporales: Polyporaceae: Lenzites betulina (L.) Fr., 1838

Lenzites betulina – Birch mazegill

Synonyms: Agaricus betulinus, Agaricus coriaceus, Agaricus flaccidus, Agaricus fuscatus, Agaricus hirsutus, Agaricus tomentosus, Boletus versicolor, Cellularia betulina, Cellularia cinnamomea, Cellularia flaccida, Cellularia guineensis, Cellularia hirsuta, Cellularia interrupta, Cellularia junghuhnii, Cellularia pinastri, Cellularia sorbina, Cellularia umbrina, Cellularia velutina, Chamaeceras fuscatus, Daedalea betulina, Daedalea cinnamomea, Daedalea flaccida, Daedalea interrupta, Daedalea variegata, Gloeophyllum cinnamomeum, Gloeophyllum hirsutum, Lenzites berkeleyi, Lenzites betuliniformis, Lenzites cinnamomea, Lenzites connata, Lenzites cyclogramma, Lenzites flaccida, Lenzites furcata, Lenzites guineensis, Lenzites hispida, Lenzites interrupta, Lenzites isabellina, Lenzites junghuhnii, Lenzites ochracea, Lenzites pertenuis, Lenzites pinastri, Lenzites sepiaria, Lenzites sorbina, Lenzites subbetulina, Lenzites umbrina, Lenzites variegata, Marasmius fuscatus, Merulius betulinus, Merulius squamosus, Sesia hirsuta, Trametes betulina.

Common name: birch mazegill.

Russian names: Lenzites berezovyy, Lentsites beriozovyy.

Extract from Wikipedia article: Trametes betulina (formerly Lenzites betulina), sometimes known by common names gilled polypore, birch mazegill or multicolor gill polypore, is a species of fungus.

AI-generated description

Lenzites betulina is a bracket fungus that grows on deciduous trees, particularly birch. In St. Petersburg, Leningrad Oblast, and north-western Russia, it is commonly found on birch stumps and logs, especially in moist, shaded areas. The fungus produces annual growth layers, with a semicircular to kidney-shaped cap that is 2-8 cm wide, and a zonate upper surface that ranges from grayish-brown to reddish-brown. The pores on the underside are small and angular, and the spores are white to pale yellow. Lenzites betulina is widely distributed in the region and can be found fruiting from July to October.

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

Birch mazegill mushroom (<B>Lenzites betulina</B>) from a burned conifer tree near Orekhovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-04-27.htm">April 27, 2017</A>
LinkBirch mazegill mushroom (Lenzites betulina) from a burned conifer tree near Orekhovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017

AI-generated summary of observations

Observations of Lenzites betulina in Leningrad Oblast and north-western Russia reveal its presence on various substrates. The fungus was found growing on a burned conifer tree near Orekhovo, 40 miles north of Saint Petersburg, on April 27, 2017. This sighting suggests that Lenzites betulina can thrive on charred wood, potentially exploiting the altered chemical composition of the substrate. Further observations in the region may uncover additional substrates and habitats where the fungus can be found, providing insights into its ecological preferences and distribution. The species' ability to colonize burned areas highlights its potential role in decomposing organic matter and contributing to forest ecosystem dynamics in north-western Russia. Continued monitoring of Lenzites betulina in this region could shed more light on its habits and interactions with the environment. Its growth patterns and substrate preferences are of particular interest for understanding its ecological niche.

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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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