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DEPARTMENT OF AGRICULTURE GEORGIA. 



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len, which being deposited upon the stigma of the pistil 

 fertilizes the ovule or embryo seed at its base. 



Stigma 



The pistil^ represented by Fig. 13, 

 is composed of four principal parts : 

 The stigma, which is an enlarged, 

 porous, moist, roughish and naked 



style, body (having no skin covering like 

 the other parts) terminating the 

 style, which connects it with the ovary 

 at the base of the pistil; within the 

 ovary or seed pod, is the ovule or em- 



Ovary. Qj-yQ seed. 



The pollen grains falling from the 

 anther of the stamen on the stigma, 

 ovule, or conveyed to it by the winds or 

 insects, in some way not yet fully 

 understood, exerts an influence upon 

 the ovule or embryo seed, which re- 

 sults in the production of seed. 



It is not deemed necessary to enumerate in detail, the 

 different forms which flowers .assume, the object being 

 simply to convey an idea of the essential parts of flowers, 

 in connection with the process of fructification and reprq- 



duction. 



To still further illustrate these, Figure 14 represents a 

 vertical section of a cherry blossom, in which are shown 

 the sepals, petals, stamens, pistils, ovary, and ovule. This 

 is a complete flower, but it will be observed that the sepals, 

 petals and stamens, all branch out from the margin 

 of .a thickened cup, which is only the base of the floral 

 envelope which embraces both calyx and corolla, which are 

 the basis of the flower-vase, one of the principal offices of 

 which is to protect the essential organs, the stamens and 



Pistil Magnified. 



Fig. 13. 



