Aecidium cardui Sydow & Sydow, 1901
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.
Asteraceae, narrowly monophagous
Brandenburger (1985a: 656), Gäumann (1959a), Klenke & Scholler (2015a).