Egg-shell slime mould (Leocarpus fragilis) on twigs of spruce near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, August 2, 2016
Unnamed Road, Leningradskaya oblast', Russia, 188664Synonyms: Diderma atrovirens, Diderma ramosum, Diderma vernicosum, Leangium atrovirens, Leangium vernicosum, Leocarpus atrovirens, Leocarpus bisporus, Leocarpus parasiticus, Leocarpus ramosus, Leocarpus spermoides, Leocarpus vernicosus, Liceopsis jurensis, Lycogala parasiticum, Lycoperdon fragile, Lycoperdon parasiticum, Physarum nitidum, Physarum vernicosum, Reticularia fragilis, Spumaria ramosa, Trichia lutea, Tripotrichia elegans.
Common name: insect egg slime mold.
Russian names: Leokarpus lomkiy, Leokarpus khrupkiy.
Leocarpus fragilis is a species of slime mold that belongs to the phylum Mycetozoa. It is characterized by its fragile, delicate sporocarps that are typically yellowish-brown in color and have a diameter of 0.5-1.5 mm. In St. Petersburg, Leningrad Oblast, and north-western Russia, Leocarpus fragilis has been found growing on decaying wood, particularly on coniferous trees, in moist, shaded areas with rich soil. The species is considered rare in the region, but can be found in areas with suitable habitat, such as old-growth forests and wooded parks.
Egg-shell slime mould (Leocarpus fragilis) on twigs of spruce near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, August 2, 2016Unnamed Road, Leningradskaya oblast', Russia, 188664
Insect egg slime mold (Leocarpus fragilis) on mushrooms Clavariadelphus ligula in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 31, 2016Unnamed Road, Leningradskaya oblast', Russia, 188695
Insect egg slime mold (Leocarpus fragilis) growing on strap coral mushrooms (Clavariadelphus ligula) in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 31, 2016Unnamed Road, Leningradskaya oblast', Russia, 188695
Insect egg slime mold (Leocarpus fragilis) on a tree limb in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017Unnamed Road, St Petersburg, RussiaObservations of Leocarpus fragilis in Leningrad Oblast and north-western Russia reveal its presence on various substrates. The species was found on twigs of spruce near Kavgolovskoe Lake in Toksovo, as well as on mushrooms such as Clavariadelphus ligula in Lembolovo. Multiple sightings in Lembolovo occurred on August 31, 2016, with the slime mold growing on strap coral mushrooms. Additionally, Leocarpus fragilis was observed on a tree limb in Sosnovka Park, Saint Petersburg, on September 2, 2017. These observations suggest that the species can thrive on different types of organic matter, including tree twigs and various species of mushrooms, in the region's forests and parks. The sightings span multiple locations and dates, indicating a relatively widespread presence of Leocarpus fragilis 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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