Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) collected during a mushroom excursion in Komarovo near Shchuchye Lake, north-west from Saint Petersburg. Russia, September 17, 2016
Ozernaya ul., Russia, 197733Synonyms: Annulohypoxylon multiforme, Hypoxylon multiforme, Sphaeria multiformis.
Common name: birch woodwart.
Russian name: Annulogipoksilon mnogoobraznyy.
Jackrogersella multiformis is a fungus species characterized by its distinctive morphology, including multiform conidiophores and conidia. In St. Petersburg, Leningrad Oblast, and north-western Russia, Jackrogersella multiformis has been found on various substrates, including decaying wood and plant debris, typically in moist environments. It is a relatively rare species in the region, with limited collections reported from these areas, often associated with other fungi in decomposing organic matter.
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) collected during a mushroom excursion in Komarovo near Shchuchye Lake, north-west from Saint Petersburg. Russia, September 17, 2016Ozernaya ul., Russia, 197733
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) in area of Nizhniye Dubki near Lisiy Nos, west from Saint Petersburg. Russia, March 3, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) on a fallen tree near Lisiy Nos, west from Saint Petersburg. Russia, March 3, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) on a birch near Lisiy Nos, west from Saint Petersburg. Russia, March 16, 2017Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) on a small branch in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) near Lake Valkijarvi (Beloe) in Lembolovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017Unnamed Road, Leningradskaya oblast', Russia, 188695
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) in area of Posiolok near Vyritsa, south from Saint Petersburg, Russia, May 1, 2017Unnamed Road, Vyritsa, Leningradskaya oblast', Russia, 188381
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) taken from Pesochny, north-west from Saint Petersburg. Russia, May 5, 2017
Birch woodwart fungus (Jackrogersella multiformis, Annulohypoxylon multiforme) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 23, 2017Unnamed Road, Sankt-Peterburg, Russia
Birch woodwart (Jackrogersella multiformis) near Lisiy Nos, south from Saint Petersburg. Russia, August 17, 2018Saint Petersburg, Russia, 197755
Birch woodwart (Jackrogersella multiformis) on a fallen tree near Lisiy Nos, south from Saint Petersburg. Russia, August 17, 2018Saint Petersburg, Russia, 197755
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) on a stump near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Texture of Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus (family Xylariaceae) on a fallen mountain ash(?) tree near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Severnoye Poberezh'ye Nevskoy Guby, Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Jackrogersella multiformis (Annulohypoxylon multiforme) fungus on a fallen tree near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Severnoye Poberezh'ye Nevskoy Guby, Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Birch woodwart fungus (Jackrogersella multiformis) on a stomp in Blizhniye Dubki Park in Lisiy Nos, west from Saint Petersburg. Russia, May 3, 2021St Petersburg, Russia, 197755
Close-up of birch woodwart fungus (Jackrogersella multiformis) on a stomp in Blizhniye Dubki Park in Lisiy Nos, west from Saint Petersburg. Russia, May 3, 2021St Petersburg, Russia, 197755Observations of Jackrogersella multiformis were made in various locations in Leningrad Oblast and north-western Russia. The fungus was found on fallen trees, stumps, and branches near Shchuchye Lake, Lisiy Nos, Nizhniye Dubki, Blizhnie Dubki, and Sosnovka Park. It was also observed near Lake Valkijarvi and in the areas of Posiolok and Pesochny. The fungus was found on birch trees and possibly mountain ash trees. Observations were made from September 2016 to May 2021, with multiple sightings in the Lisiy Nos area. The fungus was often found on decaying wood, suggesting it plays a role in decomposing organic matter. Close-up observations revealed details of its texture and morphology. Overall, Jackrogersella multiformis appears to be widespread in the region, with a preference for certain types of substrates.
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