Sterile sorediate crust

The New York Botanical Garden
Cryptogams of Wisconsin, U.S.A.
sterile, sorediate
gyrophoric acid?
Oneida County: Town of Minocqua, Patterson
Hemlocks State Natural Area, 1.2 mi S of St. Hwy
70 on West Clear Lake Road, T.39N., R.4E., sec. 3,
45°53’49"N, 89°58’28"W, ca. 450 m; Thuja swamp.
29 April 2002
William R. Buck 41794A
NEW YORK BOTANICAL GARDEN
04680992
Collected during the 11th Tuckerman Lichen Workshop
gyrophoric acid?
Determined by R. C. Harris, 2002. No. 1750-4
Whatman Silica Gel F254
To!ueneidioxane:acetic acid (90:25:4)
04680992