Phylum: Ascomycota Class: Sordariomycetes
Order: Xylariales Family: Xylariaceae
Species: Annulohypoxylon multiforme (Fr.) Y.M. Ju, J.D. Rogers & H.M. Hsieh
Synonyms: Annulohypoxylon multiforme var. multiforme
Hypoxylon crustaceum
Hypoxylon granulosum
Hypoxylon multiforme
Sphaeria crustacea
Sphaeria granulosa
Sphaeria multiformis
Stromatosphaeria elliptica
Common Name: Birch Woodwart


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Annulohypoxylon multiformePhotographer:  David Mitchel
Photographer: David Mitchel

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Associated Species (where recorded) & number of records:
Betula pubescens (14)
Betula (11)
Betula pendula (7)
Alnus glutinosa (5)
Corylus avellana (5)
Acer pseudoplatanus (1)
Alisma plantago-aquatica (1)
Fagus sylvatica (1)
Habitat (where recorded) & number of records:
Woodland: broadleaved, semi-natural (14)
Neutral grassland: semi-improved (3)
Parkland and scattered trees (3)
Woodland (3)
Woodland: broadleaved (2)
Woodland: broadleaved, plantation (2)
Woodland: mixed (2)
Woodland: mixed, semi-natural (2)
Bog (1)
Boundaries: hedge with trees, species-rich (1)
Built up area, domestic (1)
Parkland and scattered trees: mixed (1)
Scrub (1)
Scrub: dense/continuous, acidic (1)
Scrub: scattered (1)
Woodland: broadleaved, plantation, high forest (1)
Woodland: broadleaved, plantation, under planted (1)
Woodland: broadleaved, semi-natural, coppice (1)
Woodland: broadleaved, semi-natural, high forest (1)
Woodland: mixed, plantation (1)
Woodland: mixed, plantation, high forest (1)
Substrate (where recorded) & number of records:
Dead Wood (13)
Castanea sativa (9)
Tree (8)
Acer pseudoplatanus (6)
Dead Branch (2)
Fallen Branch (2)
Fallen Tree (2)
Norway Maple (1)
Quercus rubra (1)
Stump (1)
wood (1)
Months recorded in & number of records:
January (3)
February (2)
March (7)
April (9)
May (12)
June (3)
July (4)
September (7)
October (20)
November (4)
December (1)