Ramularia spiraeae Peck, 1881
on Physocarpus, Spiraea
parasite
Leaf spots with caespituli. Conidia in chains, 2-5 x 6-25 µm, 0-1-septate.
host plants
Rosaceae, oligophagous
Physocarpus opulifolius; Spiraea chamaedryfolia, salicifolia.
synonyms
Cercospora spiraeae von Thümen, 1878.
references
Brandenburger (1985a: 226), Braun (1998a), Wołczańska (2005a).