164 WILD FLOWER PRESERVATION 



A Simple Umbel bears a single flower on 

 each pedicel. (51) 



A Compound Umbel bears a secondary um- 

 bel (or umbellule) at the top of each pedicel. 

 (52) 



A Corymb, unlike an umbel, has its pedi- 

 cels starting from various points on the ped- 

 uncle, but all terminate at the same level. 

 (53) 



THE FLOWER. 



The Flower and the. Fruit are the Reproduc- 

 tive Organs of plants, for they produce the 

 seed. 



A Complete Flower has four kinds of floral 

 organs, called Whorls Calyx, Corolla, Sta- 

 mens, and Pistil. When these organs are able 

 to perform their proper functions the flower 

 is also called Perfect. If one or more of these 

 organs is missing, the flower is Incomplete, or 

 if, for any reason, they fail to perform their 

 special functions, Imperfect. 



Some botanists reserve the term Imperfect 

 for the lack of one of the two essential organs 

 only, namely, the stamens or pistil. 



