Photo by] [E. Step. 



FIG. 104. REINDEER Moss (Cladonia rangiferina). 



One of the Commensal plants known as Lichens. In this country it grows among heather stems, scarcely noticeable in 

 summer, but in winter it greatly increases in size. In the far north it is a plant of considerable importance, and, as its name 

 implies, forms a principal part of the food of the reindeer. Natural size. 



75 



