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
Jackrogersella multiformis
Sphaeria crustacea
Sphaeria granulosa
Sphaeria multiformis
Stromatosphaeria elliptica
Stromatosphaeria rubiginosa
Common Name: Birch Woodwart

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This distribution map was produced using DMap
Annulohypoxylon multiformePhotographer:  David Mitchel
On Birch, Betula
Photographer: David Mitchel

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View this species in its UK context on the NBN Atlas
Associated Species (where recorded) & number of records:
Betula (14)
Betula pubescens (14)
Betula pendula (7)
Corylus avellana (5)
Alnus glutinosa (5)
Cotoneaster (1)
Alisma plantago-aquatica (1)
Acer pseudoplatanus (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: mixed, semi-natural (3)
Parkland and scattered trees: mixed (2)
Woodland: broadleaved (2)
Woodland: broadleaved, plantation (2)
Woodland: mixed (2)
Bog (1)
Boundaries: hedge with trees, species-rich (1)
Built up area, domestic (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)
Branch (9)
Wood (9)
Tree (8)
Fallen Branch (4)
Dead Branch (2)
Fallen Tree (2)
Stump (1)
Months recorded in & number of records:
January (4)
February (3)
March (7)
April (9)
May (11)
June (3)
July (4)
August (2)
September (7)
October (21)
November (4)
December (1)