Microbotryum bistortarum (de Candolle) Vánky, 1998

on Bistorta

gall

the flowers or bulbils are swollen and covered by a greyish membrane; when this ruptures a powdery, blackish-violet mass of spores is released. The infection is systemic. The spores are finely and densely verruculose.

host plants

Polygonaceae, monophagous

Bistorta officinalis, vivipara.

synonyms

Ustilago bistortarum (de Candolle) Körnicke, 1877; Bauhinus bistortarum (de Candolle) Denchev, 1997; Sphacelotheca ustilaginea (de Candolle) Ito, 1935; Sphacelotheca borealis (Clinton), Schellenberg, 1907; Ustilago inflorescentiae (Trelease) Maire, 1907; Sphacelotheca inflorescentiae (Trelease) Maire, 1907; Sphacelotheca polygoni-vivipari Schellenberg, 1907.

references

Ainsworth & Sampson (1950a), Almaraz (1998a), Blumer (1946a), Brandenburger (1985a: 87), Chlebicki (2010a), Dauphin & Aniotsbehere (1997a), Hagen (1941a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Lutz & Vánky (2009a), Redfern & Shirley (2011a), Savchenko & Heluta (2012a), Schmid-Heckel (1985a), Scholz & Scholz (2013a), Spooner & Legon (2006a), Vánky (1994a).