Velvet twiglet mushrooms (Simocybe sumptuosa) growing from cracks of bark on a birch log near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018
Primorskoye Shosse, Sankt-Peterburg, Russia, 197755Synonyms: Agrocybe sumptuosa, Naucoria sumptuosa, Ramicola sumptuosa.
Common name: velvet twiglet.
Russian name: Simotsibe bogataya.
Simocybe sumptuosa is a small to medium-sized agaric fungus with a convex to flat cap, typically 1-4 cm in diameter, and a slender stipe. It has a reddish-brown to brown cap with a whitish or yellowish margin, and gills that are initially pale yellowish, becoming rusty brown with age. In St. Petersburg, Leningrad Oblast, and north-western Russia, Simocybe sumptuosa typically fruits in summer to early autumn, often in association with coniferous trees, particularly spruce and pine, in moist, shaded areas with rich soil. It can be found in urban parks, forests, and woodland edges, where it grows solitary or in small groups.
Velvet twiglet mushrooms (Simocybe sumptuosa) growing from cracks of bark on a birch log near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018Primorskoye Shosse, Sankt-Peterburg, Russia, 197755In Leningrad Oblast and north-western Russia, observations of Simocybe sumptuosa have revealed its growth habits and preferred substrates. The fungus has been found growing from cracks in the bark of birch logs, such as near Lisiy Nos, west of Saint Petersburg. On August 26, 2018, velvet twiglet mushrooms (Simocybe sumptuosa) were observed emerging from these bark cracks on a birch log. This suggests that the species thrives in deciduous environments, particularly on birch trees. The fungus's ability to grow on logs indicates it can decompose wood and potentially play a role in nutrient cycling in these ecosystems. Further observations are needed to fully understand the distribution and ecological significance of Simocybe sumptuosa in this region. The species' growth patterns and substrate preferences may provide insight into its role in north-western Russia's forest ecosystems.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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