OUTLINE OF TWENTY LESSONS. 295 



Lesson 8 '.■ Cruciferae, mustard family. 

 Lesson p.- Geraniaceae, geranium family. 

 Topic VI : Dicotyledons with distinct petals, and perigynous 

 or epigynous flowers. Many trees and shrubs. 

 Lesson 10; Aceraceas, maple family. 

 Lesson 11 : Rosacea^, rose family. 

 Lesson 12: Amygdalaceae, almond family. 

 Lesson ij: Pomaceae, apple family. 

 Lesson 14: Papilionaceae, pulse family. 

 Topic VII : Dicotyledons with distinct petals and epigynous 

 flowers. 

 Lesson ij; Onograceae, evening primrose family; or Um- 

 belliferae, parsley family. 

 Topic VIII : Dicotyledons with united petals, flower parts in 

 five whorls. 

 Lesson 16 : Vaccineaceae, whortleberry family. 

 Topic IX : Dicotyledons with united petals, flower parts in 

 four whorls. 

 Lesson 17 : Labiatae, mint family. 

 Lesson 18 : Caprifoliaceae, honeysuckle family. 

 Lesson ig: Dipsacaceae, teasel family. 

 Lesson 20: Compositae, composite family. 



558. Synopsis of families studied in the angiosperms. — 



The following synopsis of the families of the angiosperms is in- 

 tended for reference in grouping the studies in order that the 

 relationships of the families may be graphically represented. 

 The tables therefore should not be memorized. 



559. Table of families of monocotyledons studied.— In the 

 monocotyledons there is a single cotyledon on the embryo ; the 

 leaves are parallel-veined ; the parts of the flower are generally 

 in threes, and endosperm is usually present in the seed. There 

 are a few exceptions to all these characters. Thus a single 

 character is not sufficient to show relationship in groups, but one 

 must use the sum of several important characters. 



The families of monocotyledons can be grouped into three 

 large divisions as follows : 



