Phylum: Ascomycota	Class: Leotiomycetes
Order: Helotiales	Family: Erysiphaceae
Species: Sawadaea bicornis (Wallr.) Homma

Synonyms:

Alphitomorpha bicornis Erysiphe aceris Leptothyrium ptarmicae Maple Mildew Oidium aceris Sawadaea aceris Uncinula aceris Uncinula bicornis

Common Name:

A Powdery Mildew

Click on the dots to get a species list for the 10km square that it represents.

This distribution map was produced using DMap

On Field Maple, Acer campestre

Photographer: © David Mitchel

Have you a photograph, digital or otherwise that you would like to provide for this page? Or would you like to use this photograph? If so, please e-mail David Mitchel at the address given on the home page. Or search Google Images for this species

View this species in its UK context on the NBN Atlas

Associated Species (where recorded) & number of records: Acer pseudoplatanus (2) Acer (1)

Habitat (where recorded) & number of records:

Substrate (where recorded) & number of records: Leaf (2)

Months recorded in & number of records: August (1) September (10) October (1)