

PREFACE 



This Flora of the Pacific States has been made to enable 

 pupils to obtain a clear idea of the method of classifying 

 plants through practical experience in identifying the most 

 common genera and species of the coast. It is to serve as a 

 guide in understanding the characteristics and relationships 

 of large and important orders and genera, and, to some 

 extent, in identifying species. 



The species included have been those most widely dis- 

 tributed or those most abundant near large centers of popula- 

 f^^on, so that sufficient material might easily be obtained for 

 ^ class study. Species not clearly and easily defined have been 

 ^ omitted even when abundant, so as to render the possibility 

 t of error as little as possible. Where a difference of opinion 

 ? exists among botanists in regard to generic names, both have 

 fe<r^ generally been given, one in parentheses, 

 f Teachers will find, in whatever part of the Pacific States 

 ^ they may be, that they can collect a sufficient number of the 

 '^ plants here included to afford their pupils all the drill neces- 

 iPsary. It is advised that the teachers furnish the plants for 

 H? class study, being careful to select only from those here 

 ^ included rather than to allow the pupils themselves to select 

 at random from the flora of the neighborhood ; otherwise, the 

 ^ pupil is likely to become discouraged by failure in identifying 

 plants not described in the book. 



