46 REPRESENTATIVE PLANTS 



necessai'}' in order that the flower ma}^ fulfill its destiny. 

 Then again it is the logical procedure from the simple to the 

 complex, and the procedure is like the addition of one brick 

 to another until the building is complete, and not the demo- 

 lition of a fully made structure to find its component parts. 



The student is expected, in the following pages, to learn 

 first of all the primary features of the normal flower, in all 

 its parts, and then by a study of characteristic flowers of the 

 great type families to familiarize himself with not only in- 

 creasingly complex forms, but to also learn the rudiments 

 of classification, the use of artificial keys for plant deter- 

 mination, and the features that distinguish the most im- 

 portant families of plants, either because they illustrate 

 some great feature of flower structure and adaptation to 

 certain definite ends, or because they are greatly important 

 to man from the economic standpoint. 



The student is expected to bring in samples of all flowers 

 possible to be obtained, and gradually to learn to locate 

 them in their natural families. Flower tables posted on the 

 wall, giving credit for first-reported flowers, and for all 

 flowers seen by the classes and definitely identified, add 

 largely to the interest. Herbarium material may be col- 

 lected, but this is by no means the essential element in suc- 

 cessful flower study. As far as may be, the flowers should 

 be gathered by the class, thus adding to the value of the 

 work by the personal interest of those who have assisted in 

 furnishing material. 



1. The Willow 



Staminate Willoin Floivers,^ or Yellofo Pussies or Catkins 



The shrub and its habitat. You ought to notice the 

 willows as they grow, the places they prefer, especially with 



1 Willow flowers are of two kinds, borne on sei)arate plants. 



