Young elm oyster mushrooms (Hypsizygus ulmarius) on a trunk of elm tree in Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755Synonyms: Agaricus coriipellis, Agaricus ulmarius, Dendrosarcus coriipellis, Dendrosarcus ulmarius, Lyophyllum ulmarium, Micromphale ulmarium, Pleuropus ulmarius, Pleurotus coriipellis, Pleurotus pantoleucus, Pleurotus ulmarius.
Common name: elm leech.
Russian names: Veshenka ilmovaya, Gipsizigus ilmovyy, Ryadovka ilmovaya, Liofillum ilmovyy.
Hypsizygus ulmarius is an edible fungus that grows on trees, particularly elm and willow. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from July to October, often in urban parks and along rivers. The fungus has a broad, fan-shaped or oyster-like cap, 5-15 cm wide, with a smooth, greyish-brown to tan surface, and a short, stout stem. It is commonly found on Ulmus glabra, Salix spp., and other deciduous trees, often in association with the roots or wounds of the host tree.
Young elm oyster mushrooms (Hypsizygus ulmarius) on a trunk of elm tree in Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Elm oyster mushrooms (Hypsizygus ulmarius) on Peacock wooden sculpture in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 24, 2016Aptekarskaya nab., 6, Sankt-Peterburg, Russia, 197022
Elm oyster mushrooms (Hypsizygus ulmarius, Lyophyllum ulmarium) on a birch tree between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016Unnamed Road, Leningradskaya oblast', Russia
Cluster of elm oyster mushrooms (Hypsizygus ulmarius, Lyophyllum ulmarium) on a birch tree between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016Unnamed Road, Leningradskaya oblast', Russia
Elm oyster mushrooms (Hypsizygus ulmarius, Lyophyllum ulmarium) on a stump in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, October 1, 2016nab. Reki Karpovki, Sankt-Peterburg, Russia
Elm oyster mushrooms (Hypsizygus ulmarius) in Lesnoy Park. Saint Petersburg, Russia, October 8, 2016Bolshoy Sampsoniyevskiy prospekt, 99, Sankt-Peterburg, Russia, 194156Observations of Hypsizygus ulmarius in Leningrad Oblast and north-western Russia revealed the fungus grows on various substrates. On September 12, 2016, young elm oyster mushrooms were found on an elm tree trunk in Lisiy Nos. Later, on September 24, they were observed on a wooden sculpture in Botanic Gardens of Komarov Botanical Institute. The fungus was also spotted on birch trees between Orekhovo and Lembolovo on September 28, forming clusters. Additionally, it grew on a stump in the same botanical gardens on October 1. Further sightings occurred in Lesnoy Park on October 8. These observations suggest Hypsizygus ulmarius can thrive on different types of wood, including elm, birch, and wooden sculptures, in various locations throughout the region during September and October. The fungus appears to be adaptable and widespread in Leningrad Oblast and north-western Russia.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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