322 



NATURIi-STUDY 



growing in rich moist woods. I'ull tlu- ])lanls u]) by the 

 roots and obscr\'e that they spring from a rounded, Ijurl- 

 hke rootstalk. This was formc<l last summer and illlcd 

 \\'ith a store of food that tlie plant might make an early start 

 in the sjiring. There are three large leaves in a circle around 

 the stem just below the llower. These will have to make 

 the starch with which next year's rootstalk is to be tilled. 



Fig. 



Wake Robin nr Dwarf Trillium. 



Look at the flower. On the under side and surrounding 

 it are three green, leaf-like parts. These are the sepals. 

 Taken together they are called the calyx, which means cup. 

 This cup-like appearance of the calyx is seen better in some 

 other flowers, as, for example, in the morning-glory. Next 

 within are three white parts, shaped hke the sepals. These 

 are called the petals, and all together they form the corolla, 

 meaning crown. The corolla is more crowmdike and golden 

 in some other flowers, as, for example, the buttercup. In- 



