Erysiphe convolvuli var. calystegiae Braun, 1981

on Calystegia

Calystegia sepium, Belgium, prov. Antwerp, Mol © Carina Van Steenwinkel

same leaf, underside

Erysiphe convolvuli var. calystegiae: cleistothecium

cleistothecium with appendages

ascus

immature ascus

gall

Like the var. convolvuli, but the asci contain 5-6 spores.

host plants

Convolulaceae, monophagous

Calystegia pulchra, sepium, silvatica.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Foitzik (1992a), Klenke & Scholler (2015a), Kruse (2019a), Leysen (2017a), Ruszkiewicz-Michalska & Michalski (2005a), Scheuer & Bechter (2012a).