Puccinia taraxaci Plowright, 1889

on Taraxacum

Puccinia taraxaci: uredinia on Taraxacum officinale

Taraxacum officinale, Nieuwendam; upperside of a leaf, densely covered by uredinia

Puccinia taraxaci: infestation of Taraxacum officinale

underside of the same leaf

Puccinia taraxaci: uredinium

uredinium

Puccinia taraxaci: urediniosporesPuccinia taraxaci: urediniospores

urediniospores

gall

No host plant alternation; aecia are missing. Spermogonia yellow, April-May. Uredinia and the rare telia amphigenous, pulverulent, dark brown and blackish brown, respectively. Urediniospores 16-25 x 22-31 µm, spinulose, with 2 germination pores in the top half of the spore, each surrounded by a spineless area. Teliospores 16-24 x 25-38 µm, elliptic, 2-celled, very finely verruculose; pedicel short, hyaline.

hostplants

Asteraceae, monophagous

Taraxacum officinale.

synonyms

Puccinia taraxaci-serotini Picbauer, 1927.

P. taraxaci is often taken as a variety of P. hieracii.

references

Blumer (1946a), Brandenburger (1972a, 1985a: 696), Buhr (1965a), Doppelbaur & Doppelbaur (1973a), Gäumann (1959a), Gjaerum (1982a), González Fragoso (1922a, 1924a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2014a), Kruse & Jage (2014a), Losa España (1942a), Mayor (1967a), Riegler-Hagler (2002b), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tóth (1994a), Unamuno (1942a).

mod 8.viii.2018