Phylum: Ascomycota	Class: Sordariomycetes
Order: Xylariales	Family: Xylariaceae
Species: Xylaria polymorpha (Pers.) Grev.

Synonyms:

Bysedd y Meirw Hypoxylon polymorphum Sphaeria digitata Sphaeria polymorpha Xylaria polymorpha var. pistillaris Xylosphaera polymorpha Xylosphaeria polymorpha

Common Name:

Dead Man's Fingers

British Red Data List (2006): Extinct

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Photographer: © Chris Stretch

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View this species in its UK context on the NBN Atlas

Associated Species (where recorded) & number of records: Fagus sylvatica (37) Acer pseudoplatanus (6) Quercus (6) Corylus avellana (5) Alnus glutinosa (3) Quercus robur (3) Salix cinerea (2) Sambucus nigra (2) Salix (2) Quercus petraea (2) Ulmus glabra (1) Salix caprea (1) Picea sitchensis (1) Picea (1) Magnoliophyta (1) Larix (1) Acanthaceae (1) Fraxinus excelsior (1) Pseudotsuga menziesii (1)

Habitat (where recorded) & number of records: Woodland: broadleaved, semi-natural (17) Woodland: mixed (17) Woodland and scrub (13) Woodland (7) Woodland: mixed, plantation (7) Parkland and scattered trees (6) Woodland: broadleaved, plantation (6) Woodland: broadleaved (5) Neutral grassland: semi-improved (3) Woodland: mixed, semi-natural (3) Parkland and scattered trees: mixed (2) Woodland: broadleaved, semi-natural, high forest (2) Woodland: mixed, plantation, high forest (2) Built up area, domestic (1) Grassland and marsh (1) Parkland and scattered trees: broadleaved (1) Scrub (1) Woodland: coniferous, plantation (1) Woodland: plantation (1)

Substrate (where recorded) & number of records: Dead Wood (29) Wood (23) Stump (17) Branch (10) Log (10) Dead Branch (5) Fallen log (5) Buried Wood (2) Fallen Branch (2) Fallen Tree (1) Root (1) Rotting Wood (1) Soil (1) Tree (1) Trunk, live (1) Twig (1)

Months recorded in & number of records: January (10) February (7) March (4) April (7) May (3) June (1) July (9) August (15) September (45) October (47) November (17) December (3)