 standard photographs and close-ups: |
|
|---|---|
 macro-photographs: |
|
 photomicrographs: |
|
Click on a thumbnail to see the preview, then click on that for the full-sized image
| Record Summary | Epiphyllous pycnidia on leaf spots on Ash |
| Found as | Anamorph |
| Date | 7 August 2010 |
| Associated organism | Fraxinus exelsior |
| OS grid ref | OSGR: SU56 |
| Lat/Lon | 51° 20’ N, 1° 10’ W |
| Vice County | Berks, VC no: 22 |
| Country | England |
| Voucher | 7 Aug 2010[A] (Please quote this in any queries about this record) |
Notes:
Causes brown leaf-spots with broad, deep purple margins and dead centres. The dead centre eventually fades to pale brown and becomes crowded with black epiphyllous pycnidia. Underside similar but purple border narrower and paler.
Dead spot sometimes grown over with a dematiaceous hyphomycete.
Conidia:8-10/2.5µm, hyaline, fusiform, often wth vacuoles in lactophenol.
Growing with leaf-spots of the gall-midge Dasineura fraxinea, which can look similar.
|
standard photographs and close-ups: |
|
|---|---|
|
macro-photographs: |
|
|
photomicrographs: |
|
Click on a thumbnail to see the preview, then click on that for the full-sized image
Unless otherwise expressly stated, all original material on the BioImages website by Malcolm Storey is licensed under the above Creative Commons Licence.
Photographs from other photographers are used with permission but not included under the above CC licence.