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Puzzling rust fungus

Observed: 15th September 2013 By: PatrickroperPatrickroper’s reputation in Fungi and Lichens
2013-09-15 15.52.10
Description:

Growing on the upper surface of bramble leaves in one place in Brede High Woods, East Sussex

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

Patrickroper's picture

Puzzling rust fungus

This looks like Phragmidiumn rubi-idaei which normally grows on raspberry, but this was on blackberry. Grove in The British Rust Fungi says, however, "possibly on other species of the
genus [Rubus]."