vi PREFACE. 



repeated as a synonym, as is usual with generic names ; and as this 

 volume is used by many who are inexperienced in the ways of 

 scientific nomenclature, it may be well to mention that in such 

 cases the termination of the specific name, being an adjective, may 

 be changed to make it agree in gender with another generic or 

 substantive name. Thus the Lesser Hawkbit when it is assigned 

 to the genus Leontodon is named Leontodon hirtus, but when it is 

 included under the genus Thrincia it becomes Ihrincia hirta. 



The English names are also now added to each illustration, and 

 are followed by an indication of tlie colour of the flower except 

 where it is white, cream, or only tinged with colour. 



B. signifies Blue. P. signifies Purple. 



Br. ,, Brown. Pk. ,, Pink. 



G. „ Green. R. ,, Red, Orange, or Crimson. 



Li. ,, Lilac. Y. „ Yellow. 



Although the illustrations are necessarily small and not intended 

 to be coloured, many persons have found it of interest to do so, 

 perhaps as a record of their observation and identification of the 

 plants themselves. So far as it has been possible in the present 

 abnormal circumstances, a paper suitable for colouring has been 

 used in this edition of the work. 



Tuly, 1919. 



