Biscogniauxia nummularia

Biscogniauxia nummularia
Biscogniauxia nummularia
Scientific classification
Kingdom: Fungi
Phylum: Ascomycota
Class: Sordariomycetes
Subclass: Xylariomycetidae
Order: Xylariales
Family: Xylariaceae
Genus: Biscogniauxia
Species: B. nummularia
Binomial name
Biscogniauxia nummularia
(Bull.) Kuntze
Synonyms

Biscogniauxia bulliardii (Tul. & C. Tul.) Kuntze
Hypoxylon nummularium Bull.
Hypoxylon nummularium var. nummularium Bull.
Kommamyce bulliardii (Tul. & C. Tul.) Nieuwl.
Nummularia anthracina (J.C. Schmidt) Traverso
Nummularia bulliardii Tul. & C. Tul.
Nummularia nummularia (Bull.) J. Schröt.
Numulariola nummularia (Bull.) House
Sphaeria anthracina J.C. Schmidt
Sphaeria nummularia DC.

Biscogniauxia nummularia is a plant pathogen in the Xylariaceae family, known as the Beech Tarcrust.[1] The Latin 'nummus' meaning a coin, applied as the encrustations are often rounded and coin-like.

Contents

Views of the Beech Tarcrust

The fruiting body forms a thick and shiny black crust, on Beech (Fagus) bark and is found at all times of the year. It is not edible.[1] Young specimens are covered by a light brown outer layer. The spores are black to dark brown. B. nummularia is a common fungus specific for Fagus, and has been recorded from all parts of Europe and Russia, following the extensive distribution of its host tree. [2]

B. nummularia as a primary pathogen

The decline of European beech (Fagus sylvatica) in Sicily and Calabria (Italy) has been linked to B. nummularia and experiments have suggested that this Ascomycete plays a primary pathogenic role under certain environmental conditions.[3] It typically causes strip-canker and general wood decay.[4]

References

Notes

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External links


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