White-egg bird's nest mushrooms (Crucibulum laeve) on wood chips in Sosnovka Park. Saint Petersburg, Russia, July 21, 2016
Unnamed Road, Sankt-Peterburg, RussiaSynonyms: Crucibulum vulgare, Cyathella laevis, Cyathodes scutellare, Cyathus crucibuliformis, Cyathus crucibulum, Cyathus scutellaris, Nidularia crucibulum, Nidularia laevis, Peziza crucibuliformis, Peziza laevis, Peziza lentifera.
Common name: common bird's nest.
Russian names: Bokalchik gladkiy, Krutsibulium gladkiy.
Extract from Wikipedia article: Crucibulum is a genus in the Nidulariaceae, a family of fungi whose fruiting bodies resemble tiny egg-filled bird's nests. Often called "splash cups", the fruiting bodies are adapted for spore dispersal by using the kinetic energy of falling drops of rain. The "eggs" inside the bird's nests (technically known as peridioles) are hard waxy shells containing spores, and tend to stick to whatever nearby herbage they land on, thus increasing the odds of being consumed and dispersed by herbivorous animals. Members of this genus are saprobic, obtaining nutrients from dead organic matter, and are typically found growing on decayed wood and wood debris. The three known Crucibulum species (C. laeve, C. parvulum, and C. cyathiforme) are distinguished from other genera of the Nidulariaceae by their relatively simple funiculus – a cord of hyphae that connects the peridiole (the "eggs") to the exterior of the bird's nest.
Crucibulum laeve is a species of fungus in the family Pyronemataceae. It is found in St. Petersburg, Leningrad Oblast, and north-western Russia, typically growing on moist soil, decaying wood, and other organic matter. The fungus produces small, cup-shaped fruiting bodies that are 0.5-2 cm in diameter, with a smooth, pale brown to yellowish-brown exterior and a whitish interior. It is relatively common in the region, particularly in areas with rich soil and moderate humidity.
White-egg bird's nest mushrooms (Crucibulum laeve) on wood chips in Sosnovka Park. Saint Petersburg, Russia, July 21, 2016Unnamed Road, Sankt-Peterburg, Russia
White-egg bird's nest mushrooms (Crucibulum laeve) in Sosnovka Park. Saint Petersburg, Russia, August 8, 2016Unnamed Road, Sankt-Peterburg, Russia
White-egg bird's nest mushrooms (Crucibulum laeve) on wood chips in Sosnovka Park. Saint Petersburg, Russia, August 8, 2016Unnamed Road, Sankt-Peterburg, Russia
White-egg bird's nest mushrooms (Crucibulum laeve) on a tree in area of an old brick factory between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, April 30, 2017Parkovaya ul., Sankt-Peterburg, Russia
Common bird's nest mushrooms (Crucibulum laeve) on a rotten oak frame in Dubki Park. Sestroretsk, west from Saint Petersburg, Russia, May 12, 2017Dubkovskoye sh., 77, Sestroretsk, Sankt-Peterburg, Russia, 197706
Common bird's nest fungus (Crucibulum laeve) near Toksovo, north from Saint Petersburg. Russia, August 16, 2017Unnamed Road, Leningradskaya oblast', Russia, 188664
Common bird's nest mushrooms (Crucibulum laeve) on Proletarsky Prospect in Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017Proletarskiy Prospekt, 1, Pesochny, Sankt-Peterburg, Russia, 197758
Close up of common bird's nest mushrooms (Crucibulum laeve) on Proletarsky Prospect in Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017Proletarskiy Prospekt, 1, Pesochny, Sankt-Peterburg, Russia, 197758
Young common bird's nest mushrooms (Crucibulum laeve) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024Водяной бык или Бугай, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Common bird's nest mushrooms (Crucibulum laeve) on a piece of wood in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024Песчаная улица, Тарховка, Сестрорецк, Санкт-Петербург, Северо-Западный федеральный округ, 197706, РоссияObservations of Crucibulum laeve in Leningrad Oblast and north-western Russia show that the fungus grows on various substrates, including wood chips, trees, and rotten oak frames. It has been found in multiple locations, such as Sosnovka Park, Dubki Park, and Tarkhovka Park, often in areas with abundant wood debris. The fungus was observed during different times of the year, from April to September, with some observations noting its appearance under UV-A blacklight. Specific locations include Saint Petersburg, Sestroretsk, Toksovo, Dibuny, and Lisiy Nos, indicating a widespread presence in the region. The observations highlight the adaptability of Crucibulum laeve to different environments and substrates in north-western Russia.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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