Urocystis kmetiana Magnus, 1889

on Viola

gall

the flowers are transformed into a black granular-powdery mass of spore balls; only the calyce more or less remains intact. The spore balls consist of 1-8 spores, wrapped in a continuous layer of sterile cells.

host plants

Violaceae, monophagous

Viola arvensis, kitaibeliana, occulta, tricolor & subsp. macedonica.

synonyms

Tuburcinia kmetiana, (Magnus) Liro, 1922.

references

Almaraz (1998a), Buhr (1965a), Klenke & Scholler (2015a), Navarro, Honrubia & Torres (1986a), Tomasi (2014a), Vanderweyen & Fraiture (2014a), Vánky (1994a), Vánky & Abbasi (2013a), Zwetko (1993a).

mod 25.iii.2019