Coniosporium corticale (Ellis & Everhart) Gregory & Waller, 1952
sooty bark disease of sycamore
on Acer, etc.
After an infection by way of a wound the fungus may live for a long time in the xylem, without causing apparent damage. However, in periods of drought stress an extensive stroma is formed below the bark, in which a thick layer of conidia is produced; after several years the tree is killed. The conidia are dark brown, short-oval, smooth, aseptate, 4 x 5-12 µm.
Sapindaceae, etc., limited polyphagous
Acer campestre, platanoides, pseupdplatanus.
Cech (2019a), van Vliet (2020a).