Arctium spec., Belgium, prov. Antwerp, Oud-Turnhout, de Liereman © Carina Van Steenwinkel

gall

No host plant alternation, no aecia. First uredinia epiphyllous, on yellowish swellings of the veins, later hypophyllous: pulverulent chestnut brown; urediniospores with 3(4) pores. Telia mostly hypophyllous,dark brown. pulverulent. Teliospore 2-celled, on a short, deciduous pedicel; cell wall densely and finely verruculose, pore of the top cell apical, the one of the basal cell near the septum.

host plants

Asteraceae, monophagous

Arctium lappa, minus, tomentosum.

synonyms

P. bardanae is considered by some authors, among others Termorshuizen & Swertz, and also the Index Fungorum (2016), a synonym of P. calcitrapae.

references

Brandenburger (1985a: 655), Gäumann (1959a), Gönczö & Révay (1981a), González Fragoso (1924a), Klenke & Scholler (2015a), Kruse (2019a), Ludwig (1974a), Maier, Wingfield, Mennicken & Wingfield (2007a), Termorshuizen & Swertz (2011a), Tóth (1994a), Vanderweyen & Fraiture (2011a).