438 



INDEX. 



Hierochloe, 23 

 Hilaria, 20 

 Hippurus, 249 

 H oft 'mans eggia, 194 

 Hog's-bean, 303 

 Hogs' Potatoe, 77 

 Hog-weed, 328 

 Holly-Fern, 2 

 Holodiscus, 1 88 

 Holy Grass, 23 

 Homalobus, 208 

 Homalocenchrus, 22 

 Honey Clover (Melilotus) 

 Honeysuckle Family, 323 

 Hop-tree, 221 

 Hops, 100 



Hoarhound, Water, 299 

 Hoarhound, White, 296 

 HORDED, 52 

 Hordeum, 55 

 Horkelia, 185 

 Horse-mint, 298 

 Horseweed, 366 

 Horsetail, 5 

 Horsetail Family, 5 

 Hosackia, 202 

 Huckleberry, 260 

 Huckleberry Family, 260 

 Humulus, 100 

 Hungarian Grass, 21 

 HYNDRANGEACE.E, 175 

 Hydrangea Family, 175 

 HYDROCHARITALES, 15 

 HYDROLEACE^E, 281 

 Hydrophyllum, 282 

 Hymenatherum, 381 

 Hymenopappus, 376 

 Hymenoxis, 380 

 Hyoscyamus, 303 

 HYPERICACE.S, 231 

 HYPERICALES, 231 

 Hypericum, 231 

 Hyssop, Hedge, 312 



Ibidium, 89 



Indian Bread-root, 213 



Indian Hemp, 269 



Indian Mallow, 231 



Indian Millet (Eriocoma) 



Indian-pipe Family, 258 



Indian Grass, 20 



Indigo, False, 213 



lonoxalis, 220 



'lonidiwn, 234 



Ipomoea 273 



Iris, 86 



Iris, 86 



Iris Family, 86 



Iron Weed, 335 



Isocoma, 342 



ISOETACE^E, 5 

 ISOETALES, 5 

 Isoetes, 5 

 Italian Millet, 21 

 Iva, 328 



Ivy, American, 228 

 Ivy, Poison, 225 

 Ivy Family, 249 

 IXIACE.E, 86 



Jacob's Ladder, 280 

 Jamesia, 176 

 Jimson-weed, 303 

 Joe-Pye Weed, 335 

 Johnson Grass, 20 

 Joint-firs, 10 

 Joint-fir Family, 10 

 Jonesiella, 206 

 JUNCACE^E, 77 

 Juncoides, 80 

 Juncus, 77 

 June-berry, 191 

 June-grass, 38 

 JUNIPERACE.S:, 9 

 Juniper, Creeping, 10 

 Juniper, Low, 9 

 Juniper, Mountain, 9 

 Juniper Family, 9 

 Junipers, 9 

 Juniperus, 9, 10 

 Jussicea 



Kalmia, 260 

 Kalstrcemia, 220 

 Kentrophyta, 208 

 Kinnikinick, 259 

 Kitten-tails (Besseya) 

 Knot-weed, 109 

 Kobresia, 60 

 Kochia, 119 

 Koeleria, 38 

 Krynitzkia, 286-289 

 Kuhnia, 335 

 Kunzia, 189 



Laciniaria, 336 



Lactuca, 410 



Ladies' Slipper, 87 



Ladies' Tresses, 89 



Lady-Fern, 4 



Lady's Thumb, 1 1 1 



Lamb's Quarters, 114 



LAMIACE^E, 294 



Lappula, 285 



Larkspur, 137 



Larrea, 221 



Lathyrus, 216, 217 



Laurel, American or Swamp, 260 



Lavauxia, 246 



Lead-plant, 213 



