Puccinia cruchetiana Mayor, 1926
on Silybum
gall
No host plant alternation; no spermogonia or aecia. Uredinia and telia mostly hypophyllous, soon naked, pulverulent, brown and dark brown, respectively. Uredinioapores 17-21 x 25-28 µm, wall brown with 4 germination pores. Teliospores 2-celled, on a short, deciduous pedicel; germination pore of the lower cell close to the pedicel attachment.
host plants
Asteraceae, monophagous
Silybum marianum.
references
Brandenburger (1985a: 672), Gäumann (1959a), Klenke & Scholler (2015a), Termorshuizen & Swertz (2011a).