INDEX. 
438 
Hierochloe, 23 
Hilaria, 20 
Hippurus, 249 
Hoff manse ggia, 194 
Hog’s-bean, 303 
Hogs’ Potatoe, 77 
Hog-weed, 328 
Holly-Fern, 2 
Holodiscus, 188 
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 
Hyndrangeacee, 175 
Hydrangea Family, 175 
Hydrocharitales, 15 
Hydroleacee, 281 
Hydrophyllum, 282 
Hymenatherum, 381 
Hymenopappus, 376 
Hymenoxis, 380 
Hyoscyamus, 303 
Hypericacee, 231 
Hypericales, 231 
Hypericum, 23 x 
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 
Ionoxalis, 220 
Ionidium, 234 
Ipomcea 273 
Iris, 86 
Iris, 86 
Iris Family, 86 
Iron Weed, 335 
Isocoma, 342 
Isoetacee, 5 
ISOETALES, 5 
Isoetes, 5 
Italian Millet, 21 
Iva, 328 
Ivy, American, 228 
Ivy, Poison, 225 
Ivy Family, 249 
Ixiacee, 86 
Jacob’s Ladder, 280 
Janie si a, 176 
Jimson-weed, 303 
Joe-Pye Weed, 335 
Johnson Grass, 20 
Joint-firs, 10 
Joint-fir Family, 10 
Jonesiella, 206 
Juncacee, 77 
Juncoides, 80 
J uncus, 77 
June-berry, 191 
June-grass, 38 
J UNIPERACEE, 9 
Juniper, Creeping, xo 
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, 111 
Lamb’s Quarters, 114 
Lamiacee, 294 
Lappula, 285 
Larkspur, 137 
Larrea, 221 
Lathyrus, 216, 217 
Laurel, American or Swamp, 260 
Lavauxia, 246 
Lead-plant, 213 
