Aecidium clematidis de Candolle, 1805

on Clematis

Aecidium clmatidis: aecia on Clemmatis vitalba

Clematis vitalba, Belgium, prov. West Flanders, De Panne, Westhoek, 30.vi.2018 © Stéphane Claerebout

Aecidium clmatidis: aecia on Clemmatis vitalba

same leaf, underside

Aecidium clmatidis: aecia on Clemmatis vitalba

detail of the gall, with aecia

Aecidium clematidis gall

Clematis vitalba, Belgium, prov. Namur, Jemelle © Jean-Yves Baugnée

Aecidium clematidis

underside

Aecidium clematidis gall

Clematis vitalba France, Rhône-Alpes, Haute-Savoie, St. Pierre d’Entremont: here the gall bulges downwards © Arnold Grosscurt

Aecidium clematidis: aecia on Clematis vitalba

Clematis vitalba, Italië, Aosta, Bellon, 1200 m, 28.vii.2018 © Cor Zonneveld: aecia may also develop on the stems.

gall

aecia yellow, hypophyllous, on yellowed and galled spots.

hostplants

Ranunculaceae, monophagous

Clematis recta, vitalba.

notes

check here about the the genus Aecidium.

references

Klenke & Scholler (2015a), Roldan Garrigós & Honrubia García (1992a), Wołczańska (2008a).

mod 10.viii.2018