182 



BRITISH PLANTS 



The collection of small flowers into conspicuous masses 

 is brought about by different plants in different ways. 

 In entomophilous flowers the massed inflorescence is an 



81. DIAGRAM OF COMPOUND UMBEL. 



advantage, because the whole cluster can be pollinated 

 by a single insect during one visit, and in wind-pollinated 

 flowers the chances of pollination are improved if the area 

 is increased by multiplying the number of flowers. 



