Rhytisma salicinum
(Pers.) Fr.
IMI 217415. Place of collection: UK; Denbighshire; Betws-y-Coed, near; Mynydd Carthmyn (N53°0x' W3°4x'). Date of collection: 16 October 1977. Associated organism: Salix atrocinerea (leaf). Collector: Hawksworth, D.L..