Synonyms: Agaricus pyrotrichus, Drosophila pyrothricha, Geophila lacrymabunda, Hypholoma pyrotrichum, Psathyrella pyrotricha.
Russian name: Lakrimariya ryzhaya.
Lacrymaria pyrotricha is a species of free-living amoeboid protist that belongs to the phylum Cercomonada. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found in freshwater habitats, including lakes, rivers, and wetlands. The fungus feeds on bacteria and small organisms, playing a role in the ecosystem as a decomposer and nutrient cyclers. It is characterized by its distinctive appearance, with a pyriform cell shape and long, thin filopodia. Lacrymaria pyrotricha has been identified in various water bodies in the region, including Lake Ladoga and the Neva River.
Observations of the fungus Lacrymaria pyrotricha in Leningrad Oblast and north-western Russia reveal its presence in specific locations. On September 14, 2016, small brown mushrooms were found on a roadside south-west from Dibuny - Pesochnyi, near Saint Petersburg. The following year, on September 9, 2017, more specimens were discovered near Lembolovo, approximately 40 miles north of Saint Petersburg. These findings suggest that Lacrymaria pyrotricha can be found in the region's roadside areas and possibly other similar environments. The fungus appears to thrive in these locations during the late summer to early fall season, with observations recorded in September of both years. Further study is needed to fully understand the habitat and distribution of this species in the region. The observed mushrooms were characterized by their small size and brown color.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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