Podosphaera clandestina/spiraeae, (a pair of indistinguishable powdery mildews on Spiraea)


17 Apr 2007 at OSGR: SU56 in Berks, England

Record Summaryheavy conidial infection on green parts of cultivated golden-leafed Spiraea
Found asAnamorph
Date17 April 2007
Associated organismSpiraea
OS grid refOSGR: SU56
Lat/Lon51° 20’ N, 1° 10’ W
Vice CountyBerks, VC no: 22
CountryEngland
Voucher17 Apr 2007[B]
(Please quote this in any queries about this record)

Notes:

Abundant hyaline conidia on green shoot and both leaf surfaces. Conidia in chains.

Could be Podosphaera (Sphaerotheca) spiraeae or P. clandestina. Need cleistothecia to distinguish.

Conidia: barrel-shaped, 23-26/13-14µm.

The following literature was used to identify this find:

standard photographs and close-ups
standard photographs and close-ups:
macro-photographs
macro-photographs:
photomicrographs
photomicrographs:

Click on a thumbnail to see the preview, then click on that for the full-sized image

Creative Commons License
This website is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Licence.

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.

BioImages - Virtual Field-Guide (UK)