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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Mycenaceae: Hemimycena lactea (Pers.) Singer, 1938

Hemimycena lactea – Milky bonnet

Synonyms: Agaricus delicatellus, Agaricus lacteus, Collybia delicatella, Gymnopus delicatellus, Helotium delicatellum, Hemimycena delicatella, Hemimycena lactella, Marasmiellus delicatellus, Marasmiellus lacteus, Mycena delicatella, Mycena lactea, Mycena lactella, Mycena pithya, Trogia lactea.

Common name: milky bonnet.

Russian name: Gemimitsena molochnaya.

AI-generated description

Hemimycena lactea is a small, white, delicate mushroom that grows in clusters on decaying wood and plant debris. In St. Petersburg and Leningrad Oblast, it has been found in various habitats, including parks, forests, and along rivers. In north-western Russia, it is commonly encountered in moist, shaded areas with rich organic matter. The fungus typically fruits from spring to autumn, producing tiny, bell-shaped caps that are 0.5-1.5 cm in diameter. It is a relatively common species in the region, but often overlooked due to its small size and inconspicuous appearance.

Photos of this mushroom from the area of St. Petersburg, Russia

<B>Hemimycena lactea</B> mushrooms on dry twigs of spruce tree near Kavgolovskoe Lake. North from Saint Petersburg, Russia, <A HREF="../date-en/2016-09-21.htm">September 21, 2016</A>
LinkHemimycena lactea mushrooms on dry twigs of spruce tree near Kavgolovskoe Lake. North from Saint Petersburg, Russia, September 21, 2016
Location on mapsNovyy per., Kavgolovo, Leningradskaya oblast', Russia, 188667
Milky bonnet mushrooms (<B>Hemimycena lactea</B>) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-14.htm">July 14, 2017</A>
LinkMilky bonnet mushrooms (Hemimycena lactea) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Close up of milky bonnet mushrooms (<B>Hemimycena lactea</B>) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-14.htm">July 14, 2017</A>
LinkClose up of milky bonnet mushrooms (Hemimycena lactea) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Milky bonnet mushrooms (<B>Hemimycena lactea</B>) under thuja trees in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-09-12.htm">September 12, 2017</A>
LinkMilky bonnet mushrooms (Hemimycena lactea) under thuja trees in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
Location on mapsAptekarskiy Prospekt, 3, St Petersburg, Russia, 197022
Milky bonnet mushrooms (<B>Hemimycena lactea</B>) taken from a thuja alley in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-09-12.htm">September 12, 2017</A>
LinkMilky bonnet mushrooms (Hemimycena lactea) taken from a thuja alley in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
Location on mapsulitsa Professora Popova, 1/6, St Petersburg, Russia, 197022

AI-generated summary of observations

Hemimycena lactea has been observed growing on dry twigs of spruce trees near Kavgolovskoe Lake in Leningrad Oblast, specifically on September 21, 2016. Similar observations were made in the same area on July 14, 2017, with close-up photographs taken to document the species. The fungus has also been found growing under thuja trees in the Botanic Gardens of Komarov Botanical Institute in Saint Petersburg, with sightings recorded on September 12, 2017. In this location, specimens were collected from a thuja alley, providing further evidence of the species' presence in north-western Russia. These observations suggest that Hemimycena lactea can thrive in various environments, including coniferous forests and urban gardens, in the region surrounding Saint Petersburg. The fungus appears to be relatively common in this area, with multiple sightings recorded over a period of several years.

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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