Podosphaera amelanchieris

Podosphaera amelanchieris
Podosphaera amelanchieris on Amelanchier in the UK.
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Leotiomycetes
Order:	Erysiphales
Family:	Erysiphaceae
Genus:	Podosphaera
Species:	P. amelanchieris
Binomial name
Podosphaera amelanchieris Maurizio, 1927
Synonyms
Podosphaera oxyacanthae f. amelanchierisJacz., 1927

Podosphaera amelanchieris is a species of powdery mildew in the family Erysiphaceae. It is found across Europe and North America, where it affects the genus Amelanchier .

Description

The fungus forms a thin, light, weak coating on host leaves, rarely distorting growth from the underside. Podosphaeraamelanchieris, like most Erysiphaceae, is highly host-specific and infects only the genus Amelanchier . ^[1] Another species of powdery mildew also infects this genus: Phyllactinia amelanchieris , which has weak, very thin, often smooth growth, on the undersides of leaves. ^[2]

Taxonomy

The fungus was formally described in 1927 by Maurizio. The specific epithet derives from the host genus.

References

1. Braun, Uwe; Cook, Roger T. A. (2012). Taxonomic manual of the Erysiphales (powdery mildews). CBS biodiversity series. Utrecht: CBS-KNAW fungal biodiversity centre. ISBN   978-90-70351-89-2.
2. Bradshaw, Michael; Braun, Uwe; Khodaparast, Seyed Akbar; Mitchell, James K.; Crouch, Uma; Thomas, Jacklyn; Darsaraei, Hamideh; Pfister, Donald H. (2025-07-04). "Phylogeny and taxonomy of the genera of Erysiphaceae, part 7: Phyllactinieae" . Mycologia. 117 (4): 640–700. doi:10.1080/00275514.2025.2476375. ISSN   0027-5514. PMID   40258175.