Microbotryum parlatorei (Fischer von Waldheim) Vánky, 1998

on Rumex

Rumex maritimus, Belgium, prov. Limbourg, Zonhoven, de Platwijers, 21.viii.2022 © Carina Van Steenwinkel: swelling of the midrib

broken part of a midbib, showing the internal spore mass.

spores

detail (measurements, incl. ornamentation, 10.5-14 x 11-15 µm, n=30)

gall

swellings and distortions of all parts of the plant, filled with a blackish-purple mass of spores.

host plants

Polygonaceae, monophagous

Rumex alpinus, conglomeratus, crispus, longifolius, maritimus, obtusifolius, palustris.

synonyms

Ustilago parlatorei Fischer von Waldheim, 1876; U. domestica Brefeld, 1895.

references

Brandenburger (1985a: 91), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Klenke & Scholler (2015a), Redfern & Shirley (2011a), Scholz & Scholz (2013a), Spooner & Legon (2006a), Van Steenwinkel & Fraiture (2023a), Tomasi (2003a, 2014a), Vánky (1994a).