Slime mold Oligonema schweinitzii taken from a stump in Sosnovka Park. Saint Petersburg, Russia, March 25, 2017Synonyms: Cornuvia nitens, Oligonema bavaricum, Oligonema nitens, Physarum schweinitzii, Trichia bavarica, Trichia kickxii, Trichia nitens, Trichia pusilla.
Common name: yellow slime.
Russian name: Oligonema Shveynitsa.
Oligonema schweinitzii is a species of slime mold that belongs to the class Myxomycetes. It has been found in St. Petersburg, Leningrad Oblast, and north-western Russia, typically growing on decaying wood, especially coniferous trees, and other plant debris in moist, shaded areas. The plasmodium is white or yellowish, and the sporangia are small, globose, and brownish-yellow, usually occurring in clusters.
Slime mold Oligonema schweinitzii taken from a stump in Sosnovka Park. Saint Petersburg, Russia, March 25, 2017The species of slime mold Oligonema schweinitzii was observed on a stump in Sosnovka Park, Saint Petersburg, Russia, on March 25, 2017. Further observations revealed that the species is relatively rare in Leningrad Oblast and north-western Russia. Specimens were typically found on decaying wood, such as stumps and logs, in moist environments. The slime mold's fruiting bodies were characterized by their small size and yellowish-brown color. Observations also showed that Oligonema schweinitzii tends to thrive in areas with rich vegetation and high humidity. Additional records from the region confirmed the presence of this species in other parts of Leningrad Oblast, including forests and parks near the Finnish border. These findings contribute to a better understanding of the distribution and ecology of Oligonema schweinitzii in north-western Russia. The observations highlight the importance of continued exploration of the region's myxomycete diversity.
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