Entyloma arnaudianum (Ciferri) Vánky, 2009

on Helleborus

gall

up to 5 cm long vague leaf spots, pale at first, later reddish brown or brownish-violet. Spores in the leaf tissue, 9-11 µm, hyaline to brownish.

host plants

Ranunculaceae, monophagous

Helleborus niger.

synonyms

Melanotaenium arnaudianum Ciferri, 1924.

references

Klenke & Scholler (2015a), Vánky (1994a).