CHAPTER XLIII. 



OUTLINE OF TWENTY LESSONS IN THE 

 ANGIOSPERMS. 



557. As a minimum study of the plant families in the angio- 

 sperms, the following twenty lessons are suggested to represent 

 nine topics. 



MONOCOTYLEDONS. 



TOPIC I : Monocotyledons with conspicuous petals. 



Lesson I : Liliacese, lily family. 

 TOPIC II : Monocotyledons with flowers on a spadix. 



Lesson 2: Araceae, arum family. 



TOPIC III: Monocotyledons with a glume subtending the 

 flower. 



Lesson j: Gramineae, grass family. 



DICOTYLEDONS. 



TOPIC IV : Dicotyledons with distinct petals, flowers in catkins 



or aments, often degenerate. 

 Lesson 4: Salicacese, willow family. 

 Lesson 5.- Cupuliferae, oak family. 

 TOPIC V : Dicotyledons with distinct petals, and hypogynous 



flowers, not in true catkins. 

 Lesson 6: Ulmaceae, elm family. 

 Lesson 7 : Ranunculaceae, crowfoot family. 



294 



