22 4 



BOTANY. 



among the members of a family or group. The floral formula 

 of the lily family is written as follows: Calyx 3, Corolla 3, 



Fig. 197. 



Spray of dead-nettle (Lamium am- 

 plexicaule), leaves and flowers. 



Fig. 198. 



Section of flower of 

 evening primrose. 



Androecium 6(3-3), Gynoecium 3. The formula may be abbre- 

 viated thus: Ca3,Co3,A6(3 -}- 3), 63. 



368. Floral diagram. The relation of the parts of the flower 

 on the axis are often represented by a diagram, as shown in 

 figs. 221, 237, 244, etc. 



