3o6 THE STORY OF PLANT LIFE 



They open inwards. The ovary is one-celled and 

 inferior. The style is branched or divided into two 

 forks, with linear arms, i. e, with an anterior and a 

 posterior lobe or stigma. The tips are papillose 

 cones, the margins stigmatic. The pollen is rounded 

 and rough. The ovule is solitary and erect. The 

 fruit is dry, indehiscent, an achene, or really a pseudo- 

 nut, there being more than one carpel. It is crowned 

 by the pappus. 



Honey is secreted at the base of the style in honey- 

 glands, the tube concealing and protecting it. Pollen 

 is pressed up to the tube upon the surface of the 

 flower-head, swept up the tube b}^ the pollen-brush 

 on the style, upon which it falls. After this the style 

 lengthens and the stigma lies above the pollen. The 

 lobes curl back, and if insects do not visit the flower 

 self-pollination results, if the lobes come in contact 

 with the pollen. Rarely the flowers are wind-polli- 

 nated. 



As a rule the fruits are wind-dispersed, the pappus 

 forming a parachute apparatus. 



The group includes many useful plants, as the 

 Artichoke, Chicory, Endive, etc. 



Hemp Agrimony {Enpatorium cannahimim). 



Hemp Agrimony is general throughout Great 

 Britain, but less common in Scotland. It is a native 

 of Ireland and the Channel Islands. The name 

 refers to the resemblance of the leaves to those of 

 the Hemp. 



