ILLUSTRATIONS 



FACING PAGE 



Datura 192 



Wild Teasel 214 



Cardinal Flower 224 



Prickly Lettuce 234 



Purple Eupatorium at Home 260 



Boneset 262 



Common Burdock 270 



ILLUSTRATIONS IN TEXT 



PAGE 



Common Floating Pondweed 7 



Eel-Grass Submerged 11 



Duckmeat 13 



Spiderwort 16 



Pickerel-Weed 17 



Blue Flag 27 



Fruit of Blackberry-Lily . ~ 29 



Lizard's-Tail 31 



Stinging Nettle 34 



Pink Knotweed 37 



Climbing False Buckwheat 39 



Leaf of Common Dock 42 



Lamb's-Quarters 45 



White Campion 49 



Bladder Campion 51 



Yellow Pond-Lily 59 



Clematis 63 



Buttercup 67 



Spray of Tall Meadow-Rue 69 



Black Mustard 72 



Leaf of Live-Forever 75 



Dalibarda 77 



Tall Agrimony 78 



Three-Toothed White Cinquefoil 80 



Partridge-Pea 83 



Woadwaxen 85 



xxiv 



