542 



KEY TO THE FAMILIES. 



Leaves simple Ebony 414 



Leaves compound ...... Mimosa 257 



Ovary superior, or free from the calyx Flowers irregular. 

 Ovary i-celled 



Stamens 2 Bladdervvort 468 



Stamens 4 Broom-Rape 470 



Ovary 2-celled. Figwort, Trumpet Creeper and Acanthus 



460,471,472 

 Ovary 4-celled .... Mint and Vervain 448, 446 

 Ovary inferior or more or less united with the calyx 

 Anthers not united 



Leaves opposite or whorled. Madder and Honeysuckle 473, 478 

 Leaves alternate 



Herbs .... Primrose and Bellflower 407, 481 

 Shrubs or trees . . Storax, Huckleberry and Sweetleaf 



415, 396,415 

 Anthers united 



Flowers all with rays Chicory 486 



Not all the flowers with rays, or the latter wanting altogether 



Thistle 494 



