Photo: F. R. Hinkins & Son. 



CUCKOO-PINT (Arum maculalum) 



Part of the sheath has been cut away to show the little 

 flowers inside. The female flowers, at the foot, are mature 

 before the male flowers. Small flies are trapped by the ring of 

 hairs, which are modified stamens. When the fertile stamens 

 have shed their pollen the hairs wither and the flies escape, 

 carrying the pollen to other flowers. 



Photo: F. R. Hinkins & Son. 



CARLINE THISTLE 



The enormous success of the plants of the thistle family is 

 largely due to the effectiveness of their method of seed distribu- 

 tion. The lightest breeze is sufficient to raise thistledown and 

 to carry it over long distances. 



