Ramularia pratensis Saccardo, 1882

on Oxyria, Rheum, Rumex

Ramularia pratensis: leaf spots on Rumex acetosa

Rumex acetosa, België, prov. Limburg, Neerpelt, ‘t Hageven, 19.vi.2018 © Carina Van Steenwinkel

Ramularia pratensis: leaf spots on Rumex acetosa

same leaf, underside

Ramularia pratensis: caespituli

colonies

Ramularia pratensis

Rumex acetosa, België, prov. Antwerpen, Geel, Gemeentelijke visvijver, 13.vi.2018 © Carina Van Steenwinkel: conidophores developing from a stoma

Ramularia pratensis

conidia

Ramularia pratensis: conidia

conidia

parasite

Conidia 1.5-2 x 10-35 µm, 0-1, rarely 2 septate.

Ramularia pratensis leaf spots on Rheum rhabarbarum

Rheum rhabarbarum, Nieuwendam

Ramularia pratensis leaf spots on Rheum rhabarbarum

detail

host plants

Polygonaceae, oligophagous

Oxyria digyna; Rheum officinale, palmatum, rhabarbarum, rhaponticum; Rumex acetosa, acetosella, alpinus, arifolius, confertus, conglomeratus, crispus, hydrolapathum, induratus, longifolius, maritimus, obtusifolius, papillaris, patientia, pulcher, scutatus, thyrsiflorus, triangulivalvis.

synonyms

Ramularia rhei Allescher, 1896.

references

Brandenburger (1985a: 88, 91), Braun (1998a), Ellis & Ellis (1997a), Jage, Scholler & Klenke (2010a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Révay (1998a), Scheuer & Bechter (2012a), Wołczańska (2005a).

mod 5.x.2018