Determined at the University of Washington. Shiny olivaceous, some black regions (esp. bases). Soralia broad abundant white. Pseudocy absent or small, white. K-, P+ (yellow) soralia and partly P+ red.
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J. J. Barkman
2610
1948-07-28
1948-7-28
Scotland, Invershin, Sutherland.
50 meters
50 m.
On Betula in wood on northwest slope.
60 [written in pencil on upper right corner of packet]. Substrate: corticolous.