152 



Introduction to Botany. 



where the 72° line would intersect it. With the dividers 

 thus set space off the guide circle into five equal parts. 



CD 



H I ■ "J 



Fig. 77. 

 Method of making floral diagrams. See text. 



In the cross diagram outline the anthers as they appear 

 in the cross section, having the lobes face outward (I?, F) 

 or inward, as the case may be in the specific flower. Rep- 

 resent the sepals and petals as crescentic figures {c and 



