Whitish fungus Skeletocutis papyracea on lower side of a fallen conifer tree in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017
Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758Russian name: Skeletokutis papirusnyy.
Extract from Wikipedia article: Skeletocutis papyracea is a species of poroid crust fungus in the family Polyporaceae. It was described as new to science by Alix David in 1982. The type was collected in France, where it was found growing on a fallen trunk of Scots pine. The fungus was reported in northeastern China in 2005, and in Lithuania in 2013. A microscope is useful for identification of this fungus: it differs from other Skeletocutis by the fact that its skeletal hyphae dissolve in 5% KOH solution.
Skeletocutis papyracea is a rare, resupinate, crustose fungus that grows on decaying wood. In St. Petersburg and Leningrad Oblast, it has been found in forests and parks, typically on spruce and fir logs. In north-western Russia, it is considered a rare species, with records from the Murmansk, Arkhangelsk, and Vologda regions, where it inhabits coniferous forests and grows on dead wood of various tree species. The fungus is characterized by its thin, papery crust and pale yellow to white hymenium.
Whitish fungus Skeletocutis papyracea on lower side of a fallen conifer tree in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758
Mapledust lichen, Lecanora thysanophora (green cover) and a fungus Skeletocutis papyracea (light-brown) on lower side of a fallen conifer tree in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758
White patches of a fungus Skeletocutis papyracea on lower side of a fallen conifer tree in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758Observations of the fungus Skeletocutis papyracea in Leningrad Oblast and north-western Russia reveal its presence on fallen conifer trees. On March 4, 2017, in the Dibuny - Pesochny area near Saint Petersburg, the fungus was found on the lower side of a fallen tree, appearing as a whitish growth. It was also observed co-occurring with the mapledust lichen, Lecanora thysanophora, which formed a green cover, while Skeletocutis papyracea appeared light-brown. Additionally, white patches of the fungus were seen on the lower side of another fallen conifer tree in the same area, indicating its ability to grow in these conditions. The fungus's growth pattern and coloration varied, with whitish and light-brown appearances noted. These observations provide insight into the habitat and growth characteristics of Skeletocutis papyracea in this region.
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