LICHENS 



It was said that a person bitten by a mad dog could 

 be cured by the use of this plant. 



A black, leatherlike lichen with black spots scat- 





Beard Moss. 



" Here are old trees, tall oaks and gnarled pines, 

 That stream with gray-green mosses." 



tered over its surface is often found fastened by strong, 

 short fibers to rocks on the mountains. This is the 

 rock tripe. In the arctic region it covers the surface of 



130 



