LIPPED PLANTS AND UMBEL-BEARERS. 45 



easily pulled up. Then if you look at the lower part 

 of the stem you will see that it is white and shiny, 

 and waved. 



If you were to dig down carefully to the bottom 

 of the stem you would find there a little brown ball, 

 of which pigs are said to be fond, and that is why the 

 plant is called the earth or pig nut. 



As some plants have flowers which at first sight 

 you may think are of this natural order of umbel- 

 bearers, be careful to examine them. All umbel- 

 bearers of this natural order have five petals, five 

 stamens, and you can see two separate ends at the top 

 of the pistil. 



As we go home you shall see how many different 

 examples you can find of the four natural orders you 

 have learnt about. They are the cross-bearers, the 

 butterfly plants, the lipped plants, and the umbel- 

 bearers. With a little practice you will know them 

 quite well. 



