carpels in the centre of the flower. The carpels bear long 

 silky styles, which grow out into beautiful feathery appen- 

 dages as the seeds ripen another point of resemblance to the 

 Alpine Anemone. The carpels become ready for pollination 

 before the stamens shed their pollen. Then the outermost 

 stamens open, and only after several days have elapsed do 

 the innermost stamens become mature. A little consideration 

 will show how wonderfully this arrangement is adapted to 

 favour the cross- fertilisation of the carpels by pollen brought 

 from another flower by the agency of insect visitors. Should 

 this, for any reason, fail, self-fertilisation will almost certainly 

 be effected by means of the pollen from the innermost stamens. 

 If a large number of plants of the White Dryas be carefully 

 examined some will be found with flowers containing both 

 stamens and carpels, as above described, while others, less 

 numerous, have flowers with stamens only. These will of 

 course produce no seeds. Some plants, again, will be seen 

 to bear both kind of flowers. The White Dryas is found 

 in the mountainous districts of Europe and in the Arctic 

 regions of the new and old worlds. The plant will be 

 readily recognised, for its leaves are quite different from those 

 of an anemone. 



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