Plant Parasites of Europe

leafminers, galls and fungi

Urocystis trollii

Urocystis trollii Nannfeldt, 1959

on Trollius


blister-like swellings of the leaves and petioles, containing a black powdery mass of spore balls. Each consists of 2-5 spores, almost entirely covered by numerous sterile cells.

host plants

Ranunculaceae, monophagous

Trollius asiaticus, chinensis, europaeus, hybridus, ranunculinus.

The reference to Ranunculus by Redfern & Shirley probably is mistaken.


Brandenburger (1985), Klenke & Scholler (2015a) , Lotze-Engelhard (2010a), Redfern & Shirley (2011a), Spooner & Leon (2006a), Vanderweyen & Fraiture (2014a), Vánky (1994a), Woods, Chater, Smith ao (2018a).

Last modified 7.ii.2019