Tracya hydrocharidis Lagerheim, 1902

on Hydrocharis

gall

ill-delimited, up to some cm large, pale to brown leafspots; embedded in the tissue up to 0.3 mm large spore balls. A spore ball consists of a globular, three-dimensional network of irregular filaments, with at its outside a closed, single layer of spores.

hostplants

Hydrocharitaceae, monophagous

Hydrocharis morsus-ranae.

references

Brandenburger (1985a), Buhr (1964b), Gönczö & Révay (1981a), Klenke & Scholler (2015a), Scholz & Scholz (2013a), Spooner & Leon (2006a), Tomasi (2014a), Vánky (1981a, 1994a), Vánky & Abbasi (2013a).

mod 15.xii.2017