Extract from Wikipedia article: Trametes gibbosa, commonly known as the lumpy bracket, is a polypore mushroom that causes a white rot. It is found on beech stumps and the dead wood of other hardwood species. Fruit bodies are 8–15 cm in diameter and semicircular in shape. The upper surface is usually gray or white, but may be greenish in older specimens due to algal growth. Elongated pores are located on the under-surface. The fruiting bodies are frequently attacked by boring beetle larvae.
Lumpy bracket polypore mushrooms (Trametes gibbosa)(?) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 24, 2016 Aptekarskaya nab., 6, Sankt-Peterburg, Russia, 197022
Lumpy bracket mushrooms (Trametes gibbosa) on a fallen aspen on old railroad grade west from Kuzmolovo, near Saint Petersburg. Russia, May 7, 2021 Unnamed Road, Leningradskaya oblast', Russia, 188663
Underside of lumpy bracket mushroom (Trametes gibbosa) west from Kuzmolovo, near Saint Petersburg. Russia, May 7, 2021 Unnamed Road, Leningradskaya oblast', Russia, 188663
Pores of lumpy bracket mushroom (Trametes gibbosa) west from Kuzmolovo, near Saint Petersburg. Russia, May 7, 2021 Unnamed Road, Leningradskaya oblast', Russia, 188663
Lumpy bracket mushrooms (Trametes gibbosa) on a fallen aspen on old railroad grade south from turning circle west from Kuzmolovo, near Saint Petersburg. Russia, May 7, 2021 Unnamed Road, Leningradskaya oblast', Russia, 188663
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