INDEX TO COLOUR. 



331 



PURPLE AND LAVENDER, 



Asters, Swamp, 77. 



*' Sandy Soil, 254. 



" Roadside, 324. 



Avens, Water, 52. 



Beach Pea, 244. 

 Beard's Tongue, Hairy, 196. 

 Bergamot, Wild, 198. 

 Butterfly Pea, 276. 



Calamint, Carolina, 250. 

 Cohosh, Blue, 77. 

 Coral-root, Striped, 182. 

 Corn-cockle, 274. 



Dittany, American, 316. 

 Dwarf-iris, Crested, 80. 



Flag, Larger Blue, 79. 

 Fleabane, Larger Daisy, 290. 

 " Smaller '' 291. 



Geranium, Wild, 223. 

 Gerardia, Purple, 252. 



Hog-Peanut, 314. 



Iron-weed, 320. 



Jacob's Ladder, American, 53. 

 Jamestown-weed, Purple, 278. 

 Joe-Pye-weed, 134. 



Larkspur, Tall, 210. 

 Lettuce, Wild, 132. 

 Lobelia, Great, 122. 



'* Spicata, 124. 

 Loosestrife, Purple spiked, 98, 



Milkweed, Ashy, 77. 

 Milkwort, Large-flowered, 1 14. 

 Mint, Wild, 124. 

 Monkey-flower, 109. 



Monkshood, 104. 

 Motherwort, Common, 316. 



Nightshade, 106. 



Orchis, Fringeless Purple, 64. 



" Large, Purple-fringed, 62. 



" Small, " *' 64. 



Passion Flower, 272. 

 Pink, Ground, 187. 



" Swamp, 46. 

 Phlox, Wild, 187. 

 Plantain, Robin's, 290. 

 Polygala, Purple, 114. 

 Psoralea, Round-leaved, 124. 



Rue, Purplish Meadow, 152. 



Sea Lavender, 70. 

 Self-heal, 316. 



Shooting Star, Colorado, 91. 

 Skullcap, Hyssop, 246. 

 St. John's-wort, Marsh, 67. 

 Star, Blazing, 294. 



" Scaly Blazing, 294. 

 Stokesia, Blue, 132. 



Thyme, Creeping, 315. 

 Tick-trefoil, Prostrate, 224. 

 Toothwort, Cut-leaved, 96. 

 Turtle-head, Purple, 

 Twisted Stalk, 140. 



Verbena, Large-flowered, 268. 

 Vetch, American, 312. 

 Violet, Common Blue, 258. 

 *' Pedata bicolor, 234. 



Water-shield, 24. 

 Wood-betony, 226. 

 Wood-sorrel, Violet, 200. 



