Septoria quercicola Sacc., (a leaf-spot fungus)


6 Sep 2007 at OSGR: SK37 in Derby, England

Record Summaryleaf spots on live and dead leaves of Red Oak
Found asInfection
Date6 September 2007
Associated organismQuercus rubra
OS grid refOSGR: SK37
Lat/Lon53° 10’ N, 1° 30’ W
Vice CountyDerby, VC no: 57
CountryEngland
Voucher6 Sep 2007[G]
(Please quote this in any queries about this record)

Notes:

Small brown leaf spots peppering the leaf; at first dark blackish-brown then enlarging and becoming tan brown, or developing a white centre containing a single pycnidium.

Pycnidia: sparse, pale brown, in brown leaf spots, one in each small white spot.

Conidia: cylindric, up to 43/2.5µm, becoming 3-septate.

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:

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