Plant Parasites of Europe

leafminers, galls and fungi

Septoria acetosae

Septoria acetosae Oudemans, 1894

on Rumex

Septoria acetosae: leaf spots on Rumex acetosa

Rumex acetosa, Belgium, prov. Limbourg, Neerpelt, ‘t Hageven, © Carina Van Steenwinkel

Septoria acetosae: leaf spots on Rumex acetosa

same leaf, underside

Septoria acetosae: leaf spot on Rumex acetosa

detail of a leaf spot

Septoria acetosae: pycnidium

pycnidium with extruded conidia

Septoria acetosae: conidia



In the material depicted above the conidia measured 3-4.5 x 30-51 µm and were 1-3-septate.

host plants

Polygonaceae, monophagous

Rumex acetosa, ? alpinus, ? bucephalophorus.


Several Septoria‘s have been described from Rumex. Presently it is unknown if they represent a complex of species or just one variable species. Based on the onbserved conidia-sized the material depicted is identified as acetosae. Septoria rumicis Trail, 1889; S. rumicum Saccardo & Paoletti, 1889; S. rumicis Ellis nec Trail, 1893; S. rumicis-papillaris Caballero, 1928.


Brandenburger (1985a: 92, rumicis), Jage, Klenke, Kruse ao (2016a, rumicum), Jage, Kruse, Kummer ao (2013a, rumicis), Kozłowska, Mułenko & Heluta (2015a), Losa España (1944a), Ruszkiewicz-Michalska (2006a, rumicis), Verkley, Quaedvlieg, Shin & Crous (2013a, rumicum).

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