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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Hygrophoraceae: Hygrophorus olivaceoalbus (Fr.) Fr., 1838

Hygrophorus olivaceoalbus – Olive wax cap

Synonyms: Agaricus limacinus, Agaricus olivaceoalbus, Limacium olivaceoalbum.

Common name: olive wax cap.

Russian names: Gigrofor olivkovo-belyy, Slastena, Chernogolovik, Mokritsa olivkovo-belaya.

Extract from Wikipedia article: Hygrophorus olivaceoalbus, commonly known as the olive wax cap, is a species of fungus in the genus Hygrophorus. The fruit bodies (mushrooms) appear from midsummer to late autumn under conifers in North American and Eurasian mountain forests. The mushrooms have olive-brown, slimy caps with dark streaks and a dark umbo; the caps measure 3 to 12 cm (1.2 to 4.7 in) in diameter. Other characteristic features include a slimy stem up to 12 cm (4.7 in) long that is spotted with ragged scales up to a ring-like zone. As its name implies, the mushroom has a waxy cap and gills. It is native to North America and across the northern regions of Europe. According to a publication by the Council of Europe, the fungus is nearly extinct in France.

AI-generated description

Hygrophorus olivaceoalbus is a species of fungus characterized by its olive-white to pale yellow cap and white to cream-colored gills. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically grows in coniferous forests, especially with spruce and pine, from late summer to early winter. The fruiting bodies are often found in groups or clusters on the ground, sometimes in moss or under low vegetation.

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

Olive wax cap mushrooms (<B>Hygrophorus olivaceoalbus</B>) near Kavgolovo Lake, north from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-05.htm">September 5, 2016</A>
LinkOlive wax cap mushrooms (Hygrophorus olivaceoalbus) near Kavgolovo Lake, north from Saint Petersburg. Russia, September 5, 2016
Location on mapsNovyy per., Kavgolovo, Leningradskaya oblast', Russia, 188667
Olive wax cap mushrooms (<B>Hygrophorus olivaceoalbus</B>)(?) in Komarovo near Shchuchye Lake, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-17.htm">September 17, 2016</A>
LinkOlive wax cap mushrooms (Hygrophorus olivaceoalbus)(?) in Komarovo near Shchuchye Lake, north-west from Saint Petersburg. Russia, September 17, 2016
Location on mapsOzernaya ul., Russia, 197733
Olive wax cap mushroom (<B>Hygrophorus olivaceoalbus</B>)(?) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkOlive wax cap mushroom (Hygrophorus olivaceoalbus)(?) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197701
Olive wax cap mushrooms (<B>Hygrophorus olivaceoalbus</B>) west from Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-15.htm">September 15, 2017</A>
LinkOlive wax cap mushrooms (Hygrophorus olivaceoalbus) west from Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, September 15, 2017
Location on mapsNovyy Pereulok, Kavgolovo, Leningradskaya oblast', Russia, 188667

AI-generated summary of observations

Observations of Hygrophorus olivaceoalbus in Leningrad Oblast and north-western Russia reveal the fungus's presence in various locations. On September 5, 2016, olive wax cap mushrooms were found near Kavgolovo Lake, north of Saint Petersburg. Similar sightings were recorded on September 17, 2016, in Komarovo near Shchuchye Lake, and on August 26, 2017, in Tarkhovka Park, west of Saint Petersburg. Another sighting occurred on September 15, 2017, west of Kavgolovskoe Lake near Toksovo, north of Saint Petersburg. These observations suggest that Hygrophorus olivaceoalbus is present in the region, particularly in areas surrounding lakes and parks, during late summer to early fall. The fungus appears to thrive in these environments, with multiple sightings recorded over a two-year period. The consistent presence of olive wax cap mushrooms in these locations indicates a potential habitat preference for the species.

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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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