Ramularia urticae Cesadola, 1863

on Urtica

Mycosphaerella superflua on Urtica dioica

Urtica dioica, Belgium, prov. Antwerp, Balen, Griesbroek, 23.vii.2021 © Carina Van Steenwinkel: early infection

Mycosphaerella superflua on Urtica dioica

same leaf, underside

Mycosphaerella superflua on Urtica dioica

progressed infection

Mycosphaerella superflua on Urtica dioica

underside of a leaf spot, with with conidia down of the anamorph

Mycosphaerella superflua on Urtica dioica

conidiophore

Mycosphaerella superflua on Urtica dioica

another image

Mycosphaerella superflua on Urtica dioica

the conidi are highly variable

Mycosphaerella superflua on Urtica dioica

conidia

Urtica dioica, Nieuwendam, 7.xi.2012: anamoph

conidiophore mass at the underside of the spots

parasite

Leaf spots with caespituli. Conidia in chains, 3-7 x 8-35 µm, 0-1-septate.

host plants

Urticaceae, monophagous

Urtica dioica, membranacea, pilulifera, urens.

notes

Anamorph of Mycosphaerella superflua.

references

Adamska (2005b), Brandenburger (1985a: 78). Braun (1998a), Ellis & Ellis (1997a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Kozłowska, Mułenko & Heluta (2015a), Kruse (1914a, 2019a), Poelt & Fritz-Schroeder (1983a, Révay (1998a), Ruszkiewicz-Michalska (2006a), Wołczańska (2005a).