360 



INDEX. 



Gentianales, 245 

 Geraniaceae, 192 

 Geraniales, 192 

 Geranium, 192 

 Gerardia, 284 

 Geum, 170 

 Gifola, 327 

 Glauciuiti, 145 

 Glecoma, 266 

 Gleditsia, 180 

 Gnaphalium, 328 

 Graminales, 11 

 Graraineae, 11 

 Gratiola, 281 

 Grossulariaceae, 162 

 G3'mnadeniopsis, 92 

 Gymnocladus, 180 

 Gymnospermae, i 

 Gyrostachys, 94 



Halerpestes, 139 

 Haloragidaceae, 224 

 Hamamelidaceae, 162 

 Hamamelis, 162 

 Hedeoma, 270 

 Helleborus, 135 

 Helenium, 335 

 Heleochloa, 26 

 Helianthemum, 214 

 Helianthus, 331 

 Heliopsis, 330 

 Heliotropium, 258 

 Hemerocallis, 84 

 Hemicarpha, 42 

 Hepatica, 137 

 Heracleum, 233 

 Hesperis, 150 

 Heteranthera, 76 

 Heuchera, 160 

 Hibiscus, 210 

 Hicoria, 103 

 Hieracium, 305 

 Hippocastanaceae, 206 

 . Holcus, 29 

 Holosteum, 130 

 Homalocenchrus, 23 

 Hordeum, 41 

 Houstonia, 290 

 Humulus, no 

 Hydrangeaceae, 161 

 Hydrangea, 161 

 Hydra'itis, 134 

 Hydrocotyle, 228 

 Hydrocharitales, 10 

 Hydrophyllaceae, 255 

 Hydrophyllum, 255 

 Hypericaceae, 211 

 Hypericum, 211 

 Hyoscyamus, 276 

 Hypopitys, 237 

 Hypoxis, 89 

 Hyssopus, 270 

 Hystrix, 41 



Ilex, 203 

 Ilicaceae, 203 

 Ilicioides, 204 



Illecebraceae, 123 

 Ilysanthes, 281 

 Impatiens, 206 

 Imperatoria, 233 

 Inula, 329 

 lodanthus, 150 

 lonactis, 327 

 Ipomoea, 253 

 Iridaceae, 89 

 Iris, 90 

 Isanthus, 264 

 Isnardia, 221 

 Isotria, 96 

 Iteaceae, 162 

 Itea, 162 



Jeffersonia, 143 

 Juglandaceae, 102 

 Juglandales, 102 

 Juglans, 102 

 Juncaceae, 77 

 Juncoides, 80 

 Juncus, 77 

 Juniperus, 3 



Kalmia, 239 

 Kickxia, 279 

 Kneiffia, 223 

 Kochia, 120 

 Koeleria, 34 

 Koellia, 271 

 Koniga, 153 

 Kosteletzkya, 210 

 Kuhnia, 314 



Labiatae, 262 

 Laciniaria, 314 

 Lactuca, 304 

 Lamiura, 267 

 Lappula, 259 

 Lapsana, 302 

 Larix, 3 

 Lathyrus, 191 

 Lauraceae, 143 

 Lechea, 214 

 Ledum, 238 

 Lemnaceae, 73 

 Lemna, 73 



Lentibulariaceae, 285 

 Leontodon, 302 

 Leonurus, 267 

 Lepidium, 148 

 Leptamnium, 287 

 Leptandra, 283 

 Leptilon, 326 

 Leptorchis, 97 

 Lepturus, 40 

 Lespedeza, 188 

 Leucothoe, 239 

 Levisticum, 233 

 Ligusticura, 232 

 Ligustrum, 246 

 Liliaceae, 81 

 Liliales, 76 

 Lilium, 82 

 Limnanthaceae, 202 

 Limnanthemum, 249 



Limnorchis. 93 

 Limodorum, 95 

 Limosella, 281 

 Linaceae, 193 

 Linaria, 279 

 Linnaea, 295 

 Linum, 193 

 Lippia, 262 

 Liquidambar, 162 

 Liriodendron, 133 

 Listera, 95 

 Lithospermum, 260 

 Lobelia, 300 

 Loganiaceae, 246 

 Lolium, 40 

 Lonicera, 295 

 Loranthaceae, in 

 Lotus. 185 

 Ludwigia, 222 

 Lunaria, 156 

 Lupinus, 182 

 Lj'chnis, 125 

 Lycium, 276 

 Lj'copersicon, 276 

 Lycopsis, 261 

 Lycopus, 272 

 Lythrum, 221 

 Lysias, 93 

 Lysiraachia, 243 

 Lythraceae, 220 



Macrocalyx, 256 

 Magnoliaceae, 132 

 Magnolia, 133 

 Malus, 174 

 Malvaceae, 20S 

 Malva, 209 

 Malvales, 208 

 Mariana, 341 

 Marrubium, 266 

 Marshallia, 336 

 Matricaria, 336 

 Martyniaceae, 287 

 Martj'nia, 287 

 Medicago, 182 

 Mediola, 86 

 Meehania, 266 

 Meibomia, 186 

 Melampyrura, 285 

 Melanthaceae, 80 

 Melanthium, 81 

 Melastomaceae, 220 

 Melica, 34 

 Melilotus. 183 

 Melissa, 270 

 Melothria, 299 

 Menispermaceae, 142 

 Menispermum, 142 

 Mentha, 272 

 Menyanthaceae, 249 

 Menyanthes, 249 

 Menziesia, 239 

 Mertensia, 259 

 Mesadenia, ^^S 

 Micrampelis, 299 

 Micranthemum, 281 

 Milium, 25 



