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Fungi: Ascomycota: Sordariomycetes: Xylariales: Xylariaceae: Kretzschmaria deusta (Hoffm.) P.M.D. Martin 1970

Kretzschmaria deusta – Brittle cinder

Synonyms: Discosphaera deusta, Hypoxylon deustum, Hypoxylon magnosporum, Hypoxylon ustulatum, Nemania deusta, Nemania maxima, Sphaeria albodeusta, Sphaeria deusta, Sphaeria maxima, Sphaeria versipellis, Stromatosphaeria deusta, Ustulina deusta, Ustulina maxima, Ustulina vulgaris.

Common name: brittle cinder.

Russian name: Ustulina obyknovennaya.

Extract from Wikipedia article: Kretzschmaria deusta, commonly known as brittle cinder, is a fungus and plant pathogen found in temperate regions of the Northern Hemisphere. It is common on a wide range of broadleaved trees including beech (Fagus), oak (Quercus), lime (Tilia), Horse Chestnut and maple (Acer). It also causes serious damage in the base of rubber, tea, coffee and palms. It causes a soft rot, initially and preferentially degrading cellulose and ultimately breaking down both cellulose and lignin, and colonises the lower stem and/or roots of living trees through injuries or by root contact with infected trees. It can result in sudden breakage in otherwie apparently healthy trees. The fungus continues to decay wood after the host tree has died, making K. deusta a facultative parasite. The resulting brittle fracture can exhibit a ceramic-like fracture surface. Black zone lines can often be seen in cross-sections of wood infected with K. deusta.

Photos of this mushroom from the area of St. Petersburg, Russia

Brittle cinder fungus (<B>Kretzschmaria deusta</B>) on a tree stump in Smolenskoe Cemetery of Vasilievsliy Island. Saint Petersburg, Russia, <A HREF="../date-en/2017-06-26.htm">June 26, 2017</A>
LinkBrittle cinder fungus (Kretzschmaria deusta) on a tree stump in Smolenskoe Cemetery of Vasilievsliy Island. Saint Petersburg, Russia, June 26, 2017
Location on mapsСанкт-Петербург, Смоленское Лютеранское кладбище
Brittle cinder fungus (<B>Kretzschmaria deusta</B>) on an old stump in Smolenskoe Cemetery of Vasilievsliy Island. Saint Petersburg, Russia, <A HREF="../date-en/2017-06-26.htm">June 26, 2017</A>
LinkBrittle cinder fungus (Kretzschmaria deusta) on an old stump in Smolenskoe Cemetery of Vasilievsliy Island. Saint Petersburg, Russia, June 26, 2017
Location on mapsСанкт-Петербург, Смоленское Лютеранское кладбище

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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