Ophiognomonia leptostyla (Fries) Sogonov, 2008

walnut anthracnose

on Juglans

Juglans regia, Belgium, prov. Flemish Brabant, Houwaart © Carina Van Steenwinkel

infect leaf, upperside

underside

detail; the acervuli generally are arranged in circles

acervuli

conidia

parasite

The teleomorph develops in the fallen foliage. Here globular perithecia are formed with a charactic long and thread-thin neck.

host plants

Juglandaceae, monophagous

Juglans regia.

synonyms

Gnomonia leptostyla (Fries) Cesati & De Notaris, 1863; Marssonina juglandis (Libert) Magnus, 1835; Neomarssoniella juglandis (Libert) Braun, 1991.

references

Brandenburger (1985a: 35), Ellis & Ellis (1997a), Kruse (2019a), Roldan Garrigós & Honrubia García (1992a), Roques, Cleary, Matsiakh & Eschem (2017a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a), Unamuno (1941a, 1942a).