CONTENTS. XIX 



LESSONS ON PLANT FAMILIES. 



' CHAPTER XXXVI. 



RELATIONSHIPS SHOWN BY FLOWER AND FRUIT. 



Importance of the flower in showing kinships among the higher 

 plants, 480. Arrangement of flowers, 482. The fruit, 485 



page 247 



CHAPTER XXXVII. 



MONOCOTYLEDONS. 



(For lessons and topics see synopsis at close of the lessons.) 

 Classification, 486. Species, 486. Genus, 487. Genus trillium, 

 488. Genus erythronium, 489. Genus lilium, 4go. Family 

 liliaceae, 491. Floral formula, 492. Cohesion and adhe- 

 sion, 493. Floral diagram, 494 page 251 



CHAPTER XXXVIII. 

 MONOCOTYLEDONS (concluded) 258 



CHAPTER XXXIX. 



DICOTYLEDONS 262 



CHAPTER XL. 

 dicotyledons (continued') 265 



CHAPTER XLI. 

 dicotyledons (continued) 273 



CHAPTER XLII. 

 dicotyledons (concluded) 283 



CHAPTER XLIII. 



outline of twenty lessons in the angiosperms 294 



