| Erysiphe biuncinata | |
|---|---|
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Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Leotiomycetes |
| Order: | Helotiales |
| Family: | Erysiphaceae |
| Genus: | Erysiphe |
| Species: | E. biuncinata |
| Binomial name | |
| Erysiphe biuncinata (Cooke & Peck) M. Bradshaw, U. Braun & Pfister, 2024 | |
| Synonyms | |
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Erysiphe biuncinata is a species of powdery mildew in the family Erysiphaceae. It is found in North America, where it affects the genus Hamamelis .
The fungus forms a patchy white coating on host leaves, often around main veins. E. biuncinata, like most Erysiphaceae, is highly host-specific and infects only the genus Hamamelis . [1] Another species of powdery mildew also infects this genus: Phyllactinia hamamelidis , which has weak, very thin, often smooth growth, on the undersides of leaves. [2]
The fungus was formally described in 1872 by Cooke and Peck with the basionym Podosphaera biuncinata. The species was transferred to the genus Erysiphe by Bradshaw et al. in 2024. [3]