Podosphaera fuliginea

Podosphaera fuliginea is a species of powdery mildew in the family Erysiphaceae. It is found in North America and Eurasia, where it affects plants in the genus Veronica.^[1]

Podosphaera fuliginea
Podosphaera fuliginea on Veronica in Canada.
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Leotiomycetes
Order:	Helotiales
Family:	Erysiphaceae
Genus:	Podosphaera
Species:	P. fuliginea
Binomial name
Podosphaera fuliginea (Schltdl.) U. Braun & S. Takamatsu, 2000
Synonyms
Alphitomorpha fuliginea Schltdl., 1819 Erysibe fuliginea (Schltdl.) Link, 1824 Erysiphe fuliginea (Schltdl.) Fr., 1829 Sphaerotheca fuliginea (Schltdl.) Poll., 1905 Podosphaera major (Juel) S. Bumer, 1933 Alphitomorpha fumosa Wallr., 1833 Erysiphe fumosa (Wallr.) Sacc., 1882 Sphaerotheca castagnei var. veronicae Rabenh., 1866 Sphaerotheca castagnei var. veronicae-longifoliae Thüm., 1881

Description

The fungus forms effuse or dense patches on host leaves, sometimes thick, white and patchy. Podosphaera fuliginea, like most Erysiphaceae, is highly host-specific and infects only Veronica.^[1]

Taxonomy

The fungus was formally described in 1819 by Schlechtendal with the basionym Alphitomorpha fuliginea. It was transferred to the genus Podosphaera by Uwe Braun and Susumu Takamatsu in 2000.^[2] It was once applied to a broad host range but is now known to be confined to a single genus. Many of its former hosts now host the Podosphaera xanthii complex.