Phylum: Ascomycota	Class: Leotiomycetes
Order: Rhytismatales	Family: Rhytismataceae
Species: Rhytisma acerinum (Pers.) Fr.

Synonyms:

Melasmia acerina Rhytisma pseudoplatani Smotiau Tar Masarn Xyloma acerinum

Common Name:

Sycamore Tarspot

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This distribution map was produced using DMap

On Sycamore, Acer pseudoplatanus

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: Acer pseudoplatanus (114) Acer (31) Acer campestre (7) Salix caprea (1)

Habitat (where recorded) & number of records: Woodland and scrub (28) Woodland: broadleaved, semi-natural (27) Woodland (16) Parkland and scattered trees (12) Woodland: mixed (11) Woodland: mixed, plantation (11) Woodland: broadleaved (8) Built up area, domestic (6) Neutral grassland: semi-improved (6) Woodland: broadleaved, plantation (5) Boundaries: intact hedge (3) Parkland and scattered trees: broadleaved (3) Parkland and scattered trees: mixed (3) Acid grassland (2) Scrub (2) Woodland: coniferous, plantation (2) Woodland: plantation (2) Boundaries: defunct hedge (1) Calcareous grassland: unimproved (1) Coastlands (1) Maritime cliff and slope: coastal grassland (1) Scrub: dense/continuous (1) Woodland: broadleaved, plantation, high forest (1) Woodland: mixed, plantation, high forest (1) Woodland: mixed, semi-natural (1)

Substrate (where recorded) & number of records: Leaf (116) Leaf Litter (17) Fallen Leaf (6) Soil Leaves (4) Dead Attached Leaf (2) Soil Mossy (1)

Months recorded in & number of records: January (13) February (3) April (7) May (7) June (1) July (6) August (43) September (53) October (97) November (30) December (3)