Sterile sorediate crust

THE NEW YORK BOTANICAL GARDEN
LICHENS OF LOUISIANA
sterile, pustulate
usnic acid, zeorin, unknown
on sandstone
NATCHITOCHES PARISH: Turnout 1.5 mi
from Longleaf Trail Vista, ca. 35 mi
WNW of Alexandria. 28 May 1976.
NEW YORK BOTANICAL GARDEN
R. C. Harris 11484
04681030
usnic acid
zeori n
unknown
Determined by R. C. Harris, 1999. No. 16H-8
Merck Silica Gel 60/F254
Toluene:dioxane:acetic acid (90:25:4)
BOTANICAL
d> X~
o >r
terpene
zeorin
usnic acid
xanthone
barbatic acid?
Determined by r. c. Harris
Eastman Thin Layer Chromagram Sheet 13181 n
Toluene-dioxane-gladal acetic acid (90:25:4)* -----
HERBARIUM OF THE UNIVERSITY OF MICHIGAN	~ t7
526-20
04681030