INDEX. 



317 



Pago. 



Hystrix 92 



Ibidium 130 



Ilex 199 



llysanthes 251 



Impatiens 201 



Impatientaceae. .^ 201 



Indian grass 72 



hemp 230 



mustard 170 



pink 228 



pipe 221 



pipe family 221 



plantain 291 



tobacco 263 



turnip 1 14 



Indipo, false 184 



-nild 182 



Inula 284 



■'onactis 282 



lonidium 206 



lonoxalis 191 



Ipecac, false 175 



wild 196 



Ipomoea 233 



Iresine i49 



Iridaceae 126 



Iris 126 



crested 126 



family 126 



spring 126 



Iron-weed 273 



yellow 287 



Ironwood 137 



Isanthus 241 



Isnardia 213 



Isoetaceae 60 



Isoetes 60 



Isotria 130 



Itea 172 



Ivj', Boston 201 



English 215 



ground 243 



poison 198 



Ivy-leaf speedwell 252 



Jack oak 139 



Jack-in-the-pulpit 113 



Jacob's-ladder 235 



Japan clover 187 



Japanese honeysuckle 259 



hop 142 



knotweed 147 



Jasmine 227 



Jasminum 227 



JefEersonia 160 



Jerusalem artichoke 287 



cherry 247 



oak 148 



Jimson-weed 247 



Joe Pye weed 274 



Johnson grass 72 



Jonquil 125 



Judas tree 180 



Juglandaceae 135 



Juglans 135 



Jumpseed 145 



Page. 



Juncaceae 117 



Juncoides 119 



Juncus 117 



Juneberry 178 



Juniper 61 



Juniperus 61 



Jussiaea 213 



Kafir 72 



Kallstroemia 192 



Kalmia 223 



Kentucky bluegrass 88 



Keys to families, preparation of 15 



Kickxia 250 



Knawel 151 



Kneiffla 214 



Knotgrass 145 



Knotweed 145 



Japanese 147 



Knowlton, Frank H 13 



Koellia 245 



Koniga 165 



Krigia 264 



Kudzu vine 190 



Kuhnia 275 



KylUnga 95 



Lacinaria 275 



Lactuca 266 



Ladies '-tresses 130 



fragrant 131 



Lady fern 56 



Lady's-mantle 177 



Lady's-slipper 128 



yellow 128 



Lady 's-thumb 146 



Lake cress 166 



Lamb's lettuce 261 



Lamb's-quarters 148 



Lamium 243 



Lance-leaf violet 208 



Laportea 142 



Lappa 292 



Lappula 237 



Lapsana 264 



Larkspur 157 



dwarf 157 



rocket 157 



Lathyrus 189 



Lauraceae 161 



Laurel family 161 



mountain 223 



sheep 223 



Leaf cup, large-flowered 285 



small-flowered 285 



Leather-flower 160 



Leatherwood 211 



family 211 



Lechea 205 



Leek 121 



wild 121 



Leersia 81 



Legouzia 262 



Lemna 114, i/5 



Lemnaceae 114 



Leontodon S64, 266 



Leonurus 243 



Leopard's-bane 291 



