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Fungi: Basidiomycota: Agaricomycetes: Russulales: Russulaceae: Russula delica Fr., 1838

Russula delica – Milk white brittlegill

Synonyms: Agaricus exsuccus, Agaricus piperatus, Agaricus vellereus, Lactarius exsuccus, Lactarius vellereus, Lactifluus exsuccus.

Common name: milk white brittlegill.

Russian names: Podgruzdok belyy, Sukhar, Sukhoy gruzd, Syroezhka prevoskhodnaya, Syroezhka priyatnaya.

Extract from Wikipedia article: Russula delica is a mushroom that goes by the common name of milk-white brittlegill, and is a member of the genus Russula, all of which are collectively known as brittlegills. It is mostly white, with ochraceous or brownish cap markings, and a short robust stem. It is edible, but poor in taste, and grows in coniferous, broadleaved, or mixed woods. It can be confused with other white Russula species and certain white Lactarius species.

AI-generated description

Russula delica is a species of mushroom that grows in association with coniferous trees, particularly spruce and pine. In St. Petersburg and Leningrad Oblast, it typically fruits from July to October in moist, acidic soils. In north-western Russia, R. delica is commonly found in boreal forests, often in areas with abundant moss cover. The cap is 3-6 cm in diameter, reddish-brown to orange-brown, and the stem is white to cream-colored, 3-6 cm tall and 0.8-1.5 cm thick.

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

Milk-white brittlegill mushrooms (<B>Russula delica</B>) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-12.htm">July 12, 2017</A>
LinkMilk-white brittlegill mushrooms (Russula delica) in Sosnovka Park. Saint Petersburg, Russia, July 12, 2017
Location on mapsul. Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214
Cracked cap of milk-white brittlegill mushroom (<B>Russula delica</B>) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-12.htm">July 12, 2017</A>
LinkCracked cap of milk-white brittlegill mushroom (Russula delica) in Sosnovka Park. Saint Petersburg, Russia, July 12, 2017
Location on mapsul. Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214
Group of milk-white brittlegill mushrooms (<B>Russula delica</B>) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-12.htm">July 12, 2017</A>
LinkGroup of milk-white brittlegill mushrooms (Russula delica) in Sosnovka Park. Saint Petersburg, Russia, July 12, 2017
Location on mapsul. Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214
Milk white brittlegill mushroom (<B>Russula delica</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkMilk white brittlegill mushroom (Russula delica) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPolitekhnicheskaya ul., 29к2, Sankt-Peterburg, Russia, 194021
Milk white brittlegill mushrooms (<B>Russula delica</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-19.htm">August 19, 2017</A>
LinkMilk white brittlegill mushrooms (Russula delica) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017
Location on mapsПолитехническая ул., 29, Sankt-Peterburg, Russia, 194064
Milk white brittlegill mushrooms (<B>Russula delica</B>) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-19.htm">August 19, 2017</A>
LinkMilk white brittlegill mushrooms (Russula delica) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017
Location on mapsПолитехническая ул., 29, Sankt-Peterburg, Russia, 194064
Milk white brittlegill mushrooms (<B>Russula delica</B>)(?) in Tarkhovka Park, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-26.htm">August 26, 2017</A>
LinkMilk white brittlegill mushrooms (Russula delica)(?) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
Location on mapsPeschanaya Ulitsa, 1, Tarkhovka, Sankt-Peterburg, Russia, 197701
Milk white brittlegill mushrooms (<B>Russula delica</B>)(?) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, <A HREF="../date-en/2018-08-20.htm">August 20, 2018</A>
LinkMilk white brittlegill mushrooms (Russula delica)(?) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018
Location on mapsOkruzhnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625
Milk-white brittlegill mushrooms (<B>Russula delica</B>) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2018-09-04.htm">September 4, 2018</A>
LinkMilk-white brittlegill mushrooms (Russula delica) in Sosnovka Park. Saint Petersburg, Russia, September 4, 2018
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 194064
Milk white brittlegill mushrooms (<B>Russula delica</B>) in a coastal forest between Lisiy Nos and Olgino, west from Saint Petersburg. Russia, <A HREF="../date-en/2018-09-06.htm">September 6, 2018</A>
LinkMilk white brittlegill mushrooms (Russula delica) in a coastal forest between Lisiy Nos and Olgino, west from Saint Petersburg. Russia, September 6, 2018
Location on mapsPrimorskoye Shosse, 47, Sankt-Peterburg, Russia, 197229
Milk-white brittlegill mushrooms (<B>Russula delica</B>) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, <A HREF="../date-en/2018-09-08.htm">September 8, 2018</A>
LinkMilk-white brittlegill mushrooms (Russula delica) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018
Location on mapsRozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
Milk white brittlegill mushrooms (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkMilk white brittlegill mushrooms (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsКафе «Бульвар», Политехническая ул., 29, СПбГПУ, Saint Petersburg, 194064, Russia
Cross section of milk white brittlegill mushrooms (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkCross section of milk white brittlegill mushrooms (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsКафе «Бульвар», Политехническая ул., 29, СПбГПУ, Saint Petersburg, 194064, Russia
Milk white brittlegill mushroom (<B>Russula delica</B>(?)) in grass on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkMilk white brittlegill mushroom (Russula delica(?)) in grass on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsRussia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Underside of milk white brittlegill mushroom (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkUnderside of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsRussia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Cross section of milk white brittlegill mushroom (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkCross section of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsRussia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Large mature milk white brittlegill mushrooms (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkLarge mature milk white brittlegill mushrooms (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsRussia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Gills of milk white brittlegill mushroom (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkGills of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Location on mapsRussia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Large caps of mature milk white brittlegill mushrooms (<B>Russula delica</B>(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-23.htm">July 23, 2024</A>
LinkLarge caps of mature milk white brittlegill mushrooms (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Milk white brittlegill mushrooms (<B>Russula delica</B>) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, <A HREF="../date-en/2024-07-31.htm">July 31, 2024</A>
LinkMilk white brittlegill mushrooms (Russula delica) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024
Location on mapsТройная Липовая аллея, Вольерный участок, Придворцовый район, Зверинец, Павловск, Санкт-Петербург, Северо-Западный федеральный округ, 196620, Россия

AI-generated summary of observations

Observations of Russula delica in Leningrad Oblast and north-western Russia show that the fungus grows in various locations, including Sosnovka Park, Gardens of Polytechnic Institute, Tarkhovka Park, Pavlovsk Park, and coastal forests. The mushrooms were found on lawns, in grass, and in wooded areas, often in groups or singly. They were observed during summer and early fall, from July to September, with some sightings as late as August 26. The caps of the mushrooms were typically milk-white and sometimes cracked. The gills were also observed, and cross-sections of the mushrooms showed their internal structure. Some observations noted large, mature mushrooms with prominent caps. The fungus was found in multiple locations within Saint Petersburg and its suburbs, including Pavlovsk.

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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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