Aecidium clematidis de Candolle, 1805

on Clematis

Aecidium clmatidis: aecia on Clemmatis vitalba

Clematis vitalba, Belgium, prov. West Flanders, De Panne, Westhoek, © 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


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.


aecia yellow, hypophyllous, on yellowed and galled spots.


Ranunculaceae, monophagous

Clematis recta, vitalba.


check here about the the genus Aecidium.


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

mod 10.viii.2018