PREFACE. 



THE study of botany has a distinct cultural as well as a 

 scientific and practical value, and therefore, the author of 

 a text-book of botany should aim to interest students in 

 plants. Without such interest a large part of the time spent 

 in the study of botany is wasted. 



The two phases of botany which will interest the average 

 student are developmental and descriptive botany. The 

 developmental part can be fully illustrated in the laboratory 

 and the descriptive part in both field and laboratory. 



Students who show a special inclination for studying any 

 given group should have their interest stimulated further 

 by the study of additional forms. 



In Part I special attention is given to the development 

 and relationship of plants, to the modifications of the repro- 

 ductive process and organs, and to the development of new 

 tissue or special modifications of old tissue in each succeed- 

 ing higher group. The summary is a brief discussion of the 

 variation of the plants within a group and is helpful when 

 comparing different plants. 



Teachers can readily extend Part I to cover a term by 

 giving the student additional forms for study and comparison 

 with the plantsjllustrated in the text. 



In Part II, attention is given to descriptive botany. 

 This part contains all the facts necessary for a complete 

 understanding of the study of roots, stems, buds, leaves, 

 flowers, fruits and seeds. 



