Tracya lemnae (Setchell) Sydow & Sydow, 1901

on Spirodela

gall

on top of vague, pale spots lay, embedded in the tissue, light brown spore balls, up to ± 0.2 mm in size. A spore ball consists of a three-dimensional netwerk of stiff hyphae, lined at the outside with a single, continuous layer of spores.

host plants

Araceae, monophagous

Spirodela polyrhiza.

references

Klenke & Scholler (2015a), Płachecka (2005a), Spooner & Leon (2006a), Vánky (1981a, 1994a).

mod 25.iii.2019