BioImages: The Virtual Field-Guide (UK)
Tranzschelia pruni-spinosae (Pers.) Dietel (Blackthorn Rust)
||18 September 2007
|OS grid ref
||51° 30' N, 1° 10' W
||Vice County: Berks, VC22, England
(Please quote this in any queries about this record)
|Stage or state
||Telia and uredia, on leaves of Blackthorn in road-side hedge
||on underside live leaf of Prunus spinosa
||Uredia: hypophyllous, groups of dull brown mounds, on green and yellowing leaves, sometimes on green islands on the latter.
Telia: hypophyllous groups of isolated black clumps of spores, on yellowing leaves, sometimes on green islands.