Atopospora betulina (Fries) Petrak, 1925

birch tarspot

on Betula

parasite

Kess than a mm size black stromata on the leaves, with ascomata; asci 8-13 x 10-45 µm, 8 spores, 3-5 x 9-11, 1-septate.

host plants

Betulaceae, monophagous

Betula pendula.

synonyms

Dothidella betulina (Fries) Saccardo, 1883.

references

Blumer (1946a), Brandenburger (1985a: 53), Fakirova (1997a).