Aecidium cardui Sydow & Sydow, 1901

on Carduus

gall

Spermogonia honey coloured. Aecia hypophyllous in circles on, up to 5 mm large, yellowish leaf spots; they are cuppulate, orange, with a white peridium divided into segments. Uredinia and telia, and possibly host alternation, unknown.

host plants

Asteraceae, narrowly monophagous

Carduus defloratus.

notes

check here about the the genus Aecidium.

references

Brandenburger (1985a: 656), Gäumann (1959a), Klenke & Scholler (2015a).