Venturia convolvulorum (Ondřej) Rossman & Crous, 2015

on Calystegia, Convolvulus

Convolvulus arvensis, from Ruszkiewicz-Michalska & Połeć (2006a); scale bar = 10 µm

gall

up to 3 mm large leaf spots with greyish brown centre and brown margin. Conidiophores solitary or in small groups. brown, smooth, 29-44 µm. Conidia mostly solitary, pale olivaceous, smooth, 5 x 17-22 µm, 0-1-septate.

host plants

Convolvulaceae, oligophagous

Calystegia sepium, soldanella; Convolvulus arvensis.

synonyms

Fusicladium convolvularum Ondřej, 1971; Venturia convolvularum.

references

Brandenburger (1985a: 513), Ruszkiewicz-Michalska (2006a), Ruszkiewicz-Michalska & Połeć (2006a), Schubert, Ritschel & Braun (2003a).