CHAPTER XLI. 



DICOTYLEDONS. 



Topic IV: Dicotyledons with distinct petals, flowers 

 in catkins, or aments; often degenerate. 



Order Amentifer^:. 



407. Lesson IV. The willow family (salicaceae). — The wil- 

 lows represent a very interesting group of plants in which the 



Fig. 217. 

 Spray of willow leaves, pistillate and staminate catkins (Salix discolor). 



flowers are greatly reduced. The flowers are crowded on a 

 more or less elongated axis forming a catkin, or ament. The 



250 



