456 



Minnesota Plant Life. 



the air pores, as in many sedges and smartweeds. Sometimes 

 that region of the leaf where the air pores are the most abundant 



FIG. 226. Swamp saxifrages. The large root-leaves are adapted to the shade of the swamp. 

 The whole plant is hairy. Tamarack swamp, I^ake Harriet. After photograph by Hib- 

 bard. 



is covered with a cottony or woolly coating, as are the under 

 sides of the leaves in the Labrador tea. Again wax coatings 



