thallus_color_brown
brown
aeruginous green (rewetted); slight concentric color zonation; olive-green to olive-brown towards or along the margins; thin involute margins grey to grey-green or grey-brown, becoming grey in the herbarium; margins upon rewetting often yellowish to reddish-brown and bleed a reddish-brown pigment
Cora timucua
Cora timucua