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 
&q. 81.—Dracram or Comeounp UMBBEL. 
advantage, because the whole cluster can be pollinated 
by a sinQle 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. 
