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), Kruse (2019a), Lutz & Vánky (2009a), Redfern & Shirley (2011a), Riegler-Hager (2015a), Savchenko & Heluta (2012a), Schmid-Heckel (1985a), Scholz & Scholz (2013a), Spooner & Legon (2006a), Vánky (1994a).