Erysiphe aesculi-sylvaticae
| Erysiphe aesculi-sylvaticae | |
|---|---|
| Erysiphe aesculi-sylvaticae photographed on Aesculus pavia. | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Leotiomycetes |
| Order: | Helotiales |
| Family: | Erysiphaceae |
| Genus: | Erysiphe |
| Species: | E. aesculi-sylvaticae
|
| Binomial name | |
| Erysiphe aesculi-sylvaticae Andr. Paul & M. Bradshaw, 2025
| |
Erysiphe aesculi-sylvaticae is a species of powdery mildew in the family Erysiphaceae. It is found in North America, where it affects native hosts Aesculus sylvatica and Aesculus pavia.
Description
The fungus forms thin, white irregular patches on the leaves of its host. Erysiphe aesculi-sylvaticae, like most Erysiphaceae, is highly host-specific and infects only two species of Aesculus. The species on other Aesculus, which has been introduced to Europe and Asia, is Erysiphe flexuosa. The species on Aesculus flava likely represents another undescribed species.[1]
Taxonomy
The fungus was formally described in 2025 by Andrew Paul and Michael Bradshaw. The species epithet refers to the type host, Aesculus sylvatica. The type specimen was collected in North Carolina. E. aesculi-sylvaticae differs from E. flexuosa in having short uncinuloid chasmothecial appendages (shorter than the chasmothecial diameter) and in being confined to host species of Aesculus sect. Pavia.[1]
References
- ^ a b Paul, Andrew; Crouch, Uma; Mitchell, James K.; Bradshaw, Michael (2025). "Erysiphe aesculi-sylvaticae sp. nov. Infecting North American Aesculus Species: A New Cryptic Species Provides Insights Into the Invasion Dynamics of an Important Fungal Pathogen". Forest Pathology. 55 (4) e70036. Bibcode:2025FoPat..5525510P. doi:10.1111/efp.70036. ISSN 1439-0329.