Sterile sorediate crust

THE NEW YORK BOTANICAL GARDEN
LICHENS OF MICHIGAN
sterile, sorediate - usnic acid, zeorin
on Quercus
WASHTENAW COUNTY: just NE of junction of
Loveland and Mclure Roads, oak-hickory
woods. 7 May 1978.
R. C. Harris 12723
NEW YORK BOTANICAL GARDEN
04681008
terpenoi d
usnic acid
zeori n
Determined by R.
Merck Silica Gel
C. Harris, 2004. No. 1809-23
60 F254 Aluminum Plates
Toluene:dioxane:acetic acid (90:25:4)
BOTANICAL
QardE^
04681008