Solidago gigantea, from Ruszkiewicz-Michalska & Połeć (2006a); scale bar = 10 µm

gall

irregular, yellowish to brownish, amphigenous leaf spots. Conidiophores solitary or in small, loose fascicles, yellowish to brown, smooth, mostly unbranched, 37-64 µm long. Conidia in unbranched chains, smooth, yellowish to olivaceous brown, 4-5 x 14-16 µm, 0-1-septate.

host plants

Asteraceae, monophagous

Solidago gigantea, virgaurea

references

Brandenburger (1985a: 616), Ruszkiewicz-Michalska (2006a), Ruszkiewicz-Michalska & Połeć (2006a), Schubert, Ritschel & Braun (2003a).