Bremia cirsii (Jaczewski) Tao & Yu, 1992

on Cirsium

Bremia cirsii on Cirsium arvense

Cirsium arvense, Belgium, prov. Flemish Brabant, Zoutleeuw, het Vinne © Carina Van Steenwinkel

Bremia cirsii on Cirsium arvense

same leaf, underside

Bremia cirsii on Cirsium arvense

down

Bremia cirsii: conidiophores

conidiophores

Bremia cirsii: conidiophores

detail

Bremia cirsii: conidiophores

basal part of the conidiophores

Bremia cirsii: conidium

conidium

gall

externally hardly different from Bremia lactucae; molecular-genetic analyses nevertheless show that it is an independent species.

hostplants

Asteraceae, monophagous

Cirsium acaulon, arvense, canum, erisethales, oleraceum, palustre, vulgare.

synonyms

Klenke & Schoiller consider cirsii identical with B. lactucae.

references

Choi & Thines (2015a), Klenke & Scholler (2015a), Thines, Runge, Telle & Voglmayr (2010a).

01/11/2016

mod 27.xi.2017