Brown corticioid fungus Crustoderma dryinum(?) under a spruce log near Rappolovo and Toksovo, north from Saint Petersburg. Russia, September 1, 2017
Sosnovaya Ulitsa, 17, Rappolovo, Leningradskaya oblast', Russia, 188667Synonyms: Coniophora crocea, Coniophora dryina, Coniophora laeticolor, Coniophorella crocea, Coniophorella laeticolor, Corticium dryinum, Corticium laeticolor, Peniophora crocea, Peniophora dryina, Peniophora weirii, Terana dryina, Terana laeticolor, Xerocarpus laeticolor.
Russian name: Krustoderma lesnaya.
Extract from Wikipedia article: Crustoderma dryinum is a species of crust fungus in the family Meruliaceae, and the type species of the genus Crustoderma. It is found in Europe and Asia, where it causes a brown rot on conifer wood.
Crustoderma dryinum is a species of fungus that belongs to the family Meruliaceae. It is a crust-like fungus that grows on dead wood, typically on coniferous trees. In St. Petersburg and Leningrad Oblast, as well as in north-western Russia, Crustoderma dryinum has been found to be relatively rare, usually occurring on spruce and fir logs in moist, shaded areas. The fungus produces small, white to cream-colored basidiocarps that are tightly adherent to the substrate, with a smooth to velvety surface and a waxy to brittle texture.
Brown corticioid fungus Crustoderma dryinum(?) under a spruce log near Rappolovo and Toksovo, north from Saint Petersburg. Russia, September 1, 2017Sosnovaya Ulitsa, 17, Rappolovo, Leningradskaya oblast', Russia, 188667
Brown soft fungal crust Crustoderma dryinum(?) on a spruce log near Rappolovo and Toksovo, north from Saint Petersburg. Russia, September 1, 2017Sosnovaya Ulitsa, 17, Rappolovo, Leningradskaya oblast', Russia, 188667
Light brown corticioid fungus Crustoderma dryinum(?) near Rappolovo and Toksovo, north from Saint Petersburg. Russia, September 1, 2017Sosnovaya Ulitsa, 17, Rappolovo, Leningradskaya oblast', Russia, 188667Observations of the fungus Crustoderma dryinum in Leningrad Oblast and north-western Russia reveal its presence on spruce logs. On September 1, 2017, a brown corticioid fungus was found under a spruce log near Rappolovo and Toksovo, north of Saint Petersburg. Additionally, a brown soft fungal crust was observed on a nearby spruce log. The fungus was also spotted in a light brown form in the same area. All observations were made in the same region, indicating that Crustoderma dryinum may be common in this part of Russia. The fungus appears to thrive on spruce logs, with multiple sightings in a single day suggesting a possible abundance in the area. The varying colors, from brown to light brown, may indicate different stages of growth or environmental factors influencing its appearance.
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