Puccinia piloselloidearum Probst, 1909

on Pilosella

Pilosella officinarum, Belgium, prov. Limbourg, Laambeekvallei, 21.v.2019 © Carina Van Steenwinkel: infected plant

leaf with uredinia

urediniospores

urediniospores

urediniospores in an air bubble, better showing the ornamentation

gall

No host plant alternation, aecia are missing. Spermogonia hardly ever formed. Uredinia and telia epiphyllous, soon naked, reddish brown and blackish brown, respectively. Urediniospores spinulose, with 2 equatorial germination pores that are not surrounded by a spine-less zone. Teliospores 2-celled, short-oval, almost smooth; pedicel short, hyaline.

host plants

Asteraceae, monophagous

Pilosella aurantiaca, cymosa, flagellaris, fuscoatra, glacialis, hoppeana, lactucella, officinarum, onegensis, peleteriana, piloselloides, pseudopilosella, rubra, saussurioides, sphaerocephala, visianii, ziziana,

synonyms

often considered identical with, or a variety of, P. hieracii.

references

Bahcecioglu & Gjaerum (2004a), Brandenburger (1985a), Buhr (1964b), Gäumann (1959a), González Fragoso (1924a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Ruszkiewicz-Michalska (2006a), Termorshuizen & Swertz (2011a), Unamuno (1942a), Woods, Stringer, Evans & Chater (2015a).