112 



NATURE STUDY MADE EASY 



(*) 



Corolla 



0) 



Stamens 



(<*) 



Pistil 



Forms second envelope of 



flower. 



Protects inner parts. 

 Attracts insects by color, form, 



scent, etc. 

 Composed of petals : 



1. Separate : rose. 



2. United: hyacinth. 



Composed of 



Are placed 



filament or 



stalk. 



anther, contain- 

 ing pollen, 

 f under ovary. 

 I upon calyx. 

 I upon petals, 

 [upon ovary. 



lower part of 



pistil. 



Ovary ^ contains ovules, 



when ripe 

 forms fruit. 



Style column joining stigma 



to ovary. 

 Stigma sticky substance at 



top of style. 



(/>) Examine petals why colored? 

 why scented ? why so beautifully shaped ? 

 Show that petals are differently arranged 

 in different flowers. 



FLOWER OF LILY OF THE VALLEY OPENED 



(c) Show how filaments vary in length 

 important part the anther. Show an- 

 thers and pollen in lily. Show that 

 anthers are inserted differently in dif- 

 ferent flowers. 



(d) Important part of flower is pistil. 

 Why? Show how seeds called ovules are 

 buried in ovary; fertilized by pollen. Tell 

 how pollen sends tube to stigma and down 

 style. 



gfc I 



PLUM BLOSSOM 



se., sepals; p., petals; sta., stamens; 

 o., ovary ; s., style ; st., stigma. 



