Synonyms: Cladotrichum clavariarum, Diplococcium clavariarum, Helminthosporium clavariarum, Peziza clavariarum, Peziza nigra, Rosellinia clavariarum, Scolicotrichum clavariarum, Spadicoides clavariarum.
Helminthosphaeria clavariarum is a species of fungus that belongs to the family Helminthosphaeriaceae. It is characterized by its dark-colored, clavate to cylindrical ascomata and filiform, multiseptate ascospores. In St. Petersburg, Leningrad Oblast, and north-western Russia, Helminthosphaeria clavariarum has been found growing on decaying wood and plant debris in moist, shaded areas, typically in late summer to early autumn. The fungus is considered rare in the region, with limited collections reported from coniferous and mixed forests.
Crested coral mushrooms (Clavulina coralloides) infected by ascomycete fungus Helminthosphaeria clavariarum under maples in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017
Pamyatnik Politekhnikam, St Petersburg, Russia, 195251
Grey coral mushrooms (Clavulina cinerea) infected by ascomycete fungus Helminthosphaeria clavariarum in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761
Grey coral mushrooms (Clavulina cinerea) infected by ascomycete fungus Helminthosphaeria clavariarum in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
Grey coral mushrooms (Clavulina cinerea) infected by ascomycete fungus Helminthosphaeria clavariarum on a lawn in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
Grey coral mushrooms (Clavulina cinerea) infected by ascomycete fungus Helminthosphaeria clavariarum under spruce trees in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621Observations of the fungus Helminthosphaeria clavariarum in Leningrad Oblast and north-western Russia revealed infections on various coral mushroom species. In Saint Petersburg's Park of Polytechnic Institute, crested coral mushrooms (Clavulina coralloides) were infected under maples. In West Kotlin Nature Reserve, grey coral mushrooms (Clavulina cinerea) were infected. Multiple instances of infection were also found in Pavlovsk Park, including on lawns and under spruce trees, all affecting grey coral mushrooms. The observations took place over two years, from 2017 to 2018, and consistently showed Helminthosphaeria clavariarum infecting Clavulina species in the region. The fungus was found in different environments, including under various tree species and on lawns, indicating its adaptability and widespread presence in the area.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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