Sterile sorediate crust

THE NEW YORK BOTANICAL CARDEN
LICHENS OF MICHIGAN
sterile, sorediate - usnic acid, zeorin
on Acer rubrum
WASHTENAW COUNTY: Mud Lake Bog, ca. 1.5 mi
W of Whitmore Lake, T.1S, R.5E, sec. 1,
hardwood swamp. 11 Oct 1975.
R. C. Harris 10381
NEW YORK BOTANICAL GARDEN
04681010
zeorin
usnic acid
Determined by R. C. Harris
Eastman Thin Layer Chromagram Sheet 13181, n. 157-6
Benzene-dioxane-glacial acetic acid (90:25:4)
yo^
BOTANICAL
04681010