Rhytisma salicinum
(Pers.) Fr.
IMI 23195. Place of collection: USA; Colorado; Arapahoe Glacier, near (N40°00' W105°37'). Date of collection: 6 September 1914. Associated organism: Salix nivalis (leaf). Collector: Bethel, E.. Literature: page(s) Fungi Columbiani 4583.