Rhytisma umbonatum
(Hoppe ex Wallr.) Rabenh.
LE 171159. Place of collection: Latvia; Vidzeme; Riga, Olaine (N56°47' E23°56'). Date of collection: 6 September 1937. Associated organism: Salix purpurea (leaf). Collector: Smarods, J.. Identifier: Minter, D.W..