Septoria aegopodii Desmazières, 1876
on Aegopodium
Aegopodium podagraria, Hungary, Mosonmagyaróvár, 23.v.2018 © László Érsek
infested leaf, upper side
underside
pycnidia
extruded conidia massa
Aegopodium podagraria, Tongeren: underside of the leaf © Arnold Grosscurt
Aegopodium podagraria, Overveen: detail of the underside, with pycnidia
From the pycnidia a mass of conidia is squeezed out on the upper side of the leaf
the conidia are extremely long and thin
Aegopodium podagraria, Leiden, leg. Karel Brussee: in the course of the winter pseudothecia develop at the underside of the leaf: almost superficial globular bodies, in which ascospores are formed.
parasite
Leaf spots with pycnidia. Conidia hyaline, 4 x 55-95 µm, 1-2-septate.
host plants
Apiaceae, oligophagous
Aegopodium podagrariae; Pimpinella saxifraga.
synonyms
Asteromella aegopodii Allescher, 1895; Mycosphaerella podagrariae (Roth) Petrak, 1921; Phyllachora podagrariae (Roth) Karsten, 1873; Phloeospora aegopodii Grove, 1935; Phyllosticta aegopodii Allescher, 1895; Septoria podagrariae Lasch, 1843.
notes
The infestation reminds of the one by Puccinia aegopodii.
references
Blumer (1946a), Brandenburger (1985a: 425), Doppelbaur & Doppelbaur (1973a), Ellis & Ellis (1997a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a). Kruse (2019a), Ludwig (1974a), Kozłowska, Mułenko & Heluta (2015a), Redfern & Shirley (2011a), Roskam (2019a), Ruszkiewicz-Michalska (2006a, 2016a), Verkley, Quaedvlieg, Shin & Crous (2013a).