Sterile sorediate crust

HERBARIUM OF
THE NEW YORK BOTANICAL GARDEN
LICHENS OF NEW YORK
sterile, sorediate - usnic acid
on Prunus
usnic acid
terpenes
Determined by R. C. Harris, 1989. No. 1030-22
Merck Kieselgel 60 F254
Toluene:dioxane:acetic acid (90:25:4)
ULSTER COUNTY: Frost Valley YMCA Camp,
E end of Low Wildcat Trail across river
from camp, hardwoods, 610 m. 9 Sep 1989.
NEW YORK BOTANICAL GARDEN
collected by R. C. Harris 24501
18
04681
04681018