182 A NATURALIST IN THE GREAT LAKES REGION 



(Fig. 204) has a long and rather narrow frond with long and 

 narrow leaflets. Certain leaflets in the middle of the frond are 

 altered to bear the spore cases. 

 The fronds of the cinnamon 



FIG. 203 FIG. 204 



FIGS. 203, 204: Fig, 203. Royal fern, Osmunda regalis; Fig. 204. Clayton's 

 fern, Osmunda Claytoniana. 



fern (Fig. 205) are similar to those of the 

 interrupted fern, but have their stalks 

 covered in youth with cinnamon-colored 

 scales. The spore-bearing fronds and the 

 vegetative ones are separate, the former 

 being devoted entirely to the spore cases 

 and appearing quite unlike fern leaves. 



In the second type of pond (Fig. 206) 

 bulrushes encroach upon the pond lilies, 

 then comes a zone of sedges and grasses 

 and a few willows, mostly the shiny-leaved 

 FIG. 205. Cinnamon willow. Still farther shoreward come the 

 fern, Osmunda tinna- the blue-eyed grass (Fig. 102), the 



momea, spore-bearing . 



frond at left. yellow-eyed grass, the arrow-leaved violet 



