Physoderma sparganii-ramosi (Büsgen) Schröter
on Sparganium
gall
up to 2 mm large dark leaf spots. In infected cells solitary resting sporangia.
host plants
Sparganiaceae, monophagous
Sparganium erectum.
references
Brandenburger (1985a: 861), Klenke & Scholler (2015a).