Puccinia bardanae (Wallroth) Corda, 1840
on Arctium

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

uredinia and telia are difficult to distinguish

urediniospore

teliospores
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).