Sterile sorediate crust

The New York Botanical Garden
Cryptogams of Alabama, U.S.A.
sterile crust
xanthone, stictic acid?
on branch of Taxodium
Escambia County: Conecuh National Forest, S of
US 29 just E of McGowin Bridge over Conecuh
River, 31°09’46"N, 86°47’47"W; planted Taxodium
trees on edge of oak scrub.
William R. Buck 51735	04681021
NEW YORK BOTANICAL GARDEN
13 April 2007
7/c aj r-b( a-T
stictic acid agg. (tr.)
Determined by R. C. Harris, 2007. No. 1975-11
Merck Silica Gel 160 F25k Aluminum Plate
To!uene:dioxane:acetic acid (180:^5:15)
xanthone (major)
04681021