DEFINITIONS OP TERMS. 



Here is a portion the under side of one of the pinna 

 (or branches) of the Broad Buckler Fern (Lastrea dilatata) 

 showing conspicuously the fruit scattered like small 

 spots on its surface. To see this fruit when present, the 



^* \ _ V f *'..V /'//% T7 ^L A 



fronds of a growing plant would have to be turned up 

 to the light. 



Like other plants, ferns consist of three principal 

 parts roots, stems, and leafy farts. The accompanying 



