Puccinia laschii Lagerheim, 1895

on Cirsium, Silybum

Puccinia laschii: spores

Cirsium palustre, from González Fragoso (1924a): urediniospores and teliospores

gall

No host plant alternation. Spermogonia orange, mainly epiphyllous, also on the petioles. Aecia are not formed. Uredinia light brown, mainly hypophyllous, on epiphyllous brown leaf spots; spores 19-26 x 22-32 µm, spinulose, with 3 equatorial pores, sometimes capped by a low papilla. Telia blackish brown, pulverulent, mainly epiphyllous. Teliospores 2-celled, short-elliptic, 17-32 x 22-46 µm; cell wall densely and finely verrucuose; pedicel short, hyaline, deciduous.

host plants

Asteraceae, monophagous

Cirsium acaulon, alsophilum, altissimum, ? arvense, canum, carniolicum, decussatum, dissectum, eriophorum, erisithales, esculentum, heterophyllum, japonicum, laniflorum, leucopsis, monspessulanum, obvallatum, oleraceum, palustre, pannonicum, pyrenaicum, richterianum, rivulare, spinosissimum, tuberosum; Silybum marianum

synonyms

Puccinia cirsii Lasch, 1859.

Puccinia laschii of often considered identical with, or a variety of, P. calcitrapae.

references

Blumer (1946a), Brandenburger (1972a), Buhr (1964b), Doppelbaur & Doppelbaur (1968a, 1973a), Gäumann (1959a), Gjaerum (1982a), Gönczö & Révay (1981a), González Fragoso (1924a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Losa España (1942a), Mayor (1973a), Özaslan, Hüseyin & Erdogdu (2014a), Riegler-Hager (2014a), Scheuer & Bechter (2012a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Unamuno (1841a, 1942a).

mod 21.vii.2019