Studies in Erysiphales anamorphs (4): species on Hydrangeaceae and Papaveraceae
Anamorphic powdery mildews on Hydrangeaceae and Papaveraceae in Germany are revised. Species are documented in detail including line drawings, photomicrographs, and identification keys. On Papaveraceae three species are accepted, specifically Erysiphe macleayae
on Chelidonium majus and Macleaya cordata, E. cruciferarum on Eschscholzia californica, and Oidium sp. (an unknown species previously assigned to E. cruciferarum) on Pseudofumaria lutea. Species on Hydrangeaceae are Oidium hortensiae
on Hydrangea macrophylla and E. deutziae on Deutzia cf. scabra and Philadelphus cf. coronarius. The fungus on the latter host plant was previously assigned to O. hortensiae. Erysiphe deutziae, E. macleayae, and Oidium hortensiae are introduced
species.
Keywords: CONIDIAL GERMINATION; MORPHOLOGY; NEOMYCETE
Document Type: Research Article
Publication date: 09 May 2011
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