ILLUSTRATIONS 



PAGE 



Small-Flowered Buttercup, Flowers of 8^ 



Wild Mandrake, Flower and Leaf of 87 



T\^^nleaf, Plant of 89 



Blue Cohosh, Flowering Stem of 90 



Celandine, Flowers and Fruit of 94 



Dutchman's-Breeches, Flower of 97 



Pale Corydalis, Flowering Stem of 99 



Golden Corydalis, Flowers and Fruit 100 



Purple Spring-Cress, Flowering Stem of 103 



Two-Leaved Dentaria, Flowering Stem of 107 



Yellow Rocket, Flowering Stem of 109 



Whitlow-Grass, Plant of no 



Lyre-Leaved Rock-Cress, Flowering Stem of in 



Shepherd's-Purse, Fruit of 112 



Mitella, Flowering Stem of 116 



Wild Strawberry, Flower and Fruit of 120 



Potentilla, Flowering Stem of 122 



White Clover Leaves at Night 125 



Red Clover, Leaf of 129 



Alsike Clover, Flowering Stems of 131 



Carohna Vetch, Leaves, Flowers, and Fruit of 132 



Yellow Wood-Sorrel, Leaves, Flowers, and Fruit of . . . 138 



Fringed Polygala, Plant of 140 



Cypress-Spurge, Flowering Stem of 143 



Blue Violet, Warrior Blossom of 147 



Bird's-Foot Violet, Flower and Leaf of 149 



Arrow-Leaved Violet, Flower and Leaf of 150 



Sweet White Violet, Flowers of 152 



Halberd-Leaved Violet, Flowering Stem of 153 



Downy Yellow Violet, Flowering Stem of 154 



Smooth Yellow Violet, Flowering Stem of 155 



Canada Violet, Flowering Stem of 157 



Cream Violet, Flowering Stem of 158 



xxvii 



