from Bensch, Braun, Groenewald & Crous (2012a); K Bensch del.; scale bar = 10 µm

gall

leaf spots amphigenous, confluent and ultimately very large, greyish white, surrounded by a narrow dark brown margin. Colonies dark brown, amphigenous. Conidiophores solitary or in small groups, 50-175 µm. Conida in simple or branched chains, pale greenish brown, 3-5 x 4-14 µm, 0-1-septate.

hostplants

Salicaceae, monophagous

Populus tremula.

references

Bensch, Braun, Groenewald & Crous (2012a).