Puccinia mariana Saccardo, 1915

on Silybum

Puccinia mariana: spores

Silybum marianum, from González Fragoso (1924a): urediniospores and teliospores

gall

Spermogonia yellow, in large groups. No aecia. Uredinia amphigenous, chestnut brown. Telia mainly hypophyllous, long covered by the epidermis, eventually black. Mixed sori are common. Urediniosporen 15-17 x 26-38 µm, wall colourless with 3-6 germination pores. Teliospores two-celled, on a short pedicel.

hostplants

Asteraceae, monophagous

Silybum marianum.

references

Brandenburger (1985a), Gäumann (1959a), González Fragoso (1924a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Savchenko, Heluta, Wasser & Nevo (2014d), Termorshuizen & Swertz (2011a).

mod 4.viii.2018