Phylum: Ascomycota	Class: Sordariomycetes
Order: Xylariales	Family: Hypoxylaceae
Species: Hypoxylon rubiginosum (Pers.) Fr.

Synonyms:

Dafaden Rydlyd Hypoxylon botrys Hypoxylon decorticatum Sphaeria botryosa Sphaeria rubiginosa Stromatosphaeria rubiginosa

Common Name:

Rusty Woodwart

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View this species in its UK context on the NBN Atlas

Associated Species (where recorded) & number of records: Fraxinus excelsior (5) Fagus sylvatica (3) Populus alba (2) Salix (1) Acer pseudoplatanus (1)

Habitat (where recorded) & number of records: Woodland: broadleaved, semi-natural (4) Woodland: mixed (4) Neutral grassland: semi-improved (3) Woodland (3) Built up area, domestic (2) Parkland and scattered trees (2) Woodland: broadleaved (2) Woodland: broadleaved, plantation, high forest (2) Marsh/marshy grassland (1) Parkland and scattered trees: broadleaved (1) Scrub (1) Woodland: broadleaved, plantation (1) Woodland: coniferous, plantation (1)

Substrate (where recorded) & number of records: Dead Wood (3) Log (3) Branch (2) Wood (2) Tree (1)

Months recorded in & number of records: January (2) February (2) April (1) August (4) September (2) October (4) November (1)