Melampsoridium betulinum (Pers.) Kleb., (birch rust)


10 Aug 2007 at OSGR: SU56 in Berks, England

Record Summaryinfection on leaf undersides of saplings/regrowth of Downy Birch
Found asUredia (II)
Date10 August 2007
Associated organismBetula pubescens
OS grid refOSGR: SU56
Lat/Lon51° 30' N, 1° 10' W
Vice CountyBerks, VC no: 22
CountryEngland
Voucher10 Aug 2007[A]
(Please quote this in any queries about this record)

Notes: Infection on leaf undersides of saplings/regrowth of Downy Birch in shady corner.

Uredosori: hypophyllous, on small yellow spots.

Uredospores: clavate, sparsely warty, smooth at broad end, 28-41/10.5-14µm. With orange contents. Many white, empty uredospores where they've been eaten by Cecidomyid larvae.

The following literature was used to identify this find:

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