L Labrador Tea, 220 Lactuca, 276 pulchella, 280 Lady’s Slipper, Small White, 55 Small Yellow, 55 Lady’s Tresses, 67 Lappula, 241 diffusa, 242 floribunda, 241 lappula, 242 Larch, Lyall’s, 26 Larix, 24 Lyallii, 26 Larkspur, Blue, 108 Western, 107 Lathyrus, 169 ochroleucus, 181 palustris, 181 Laurel, Small-leaved Swamp, 218 Ledum, 212 grœnlandicum, 220 LENTIBULARIACEÆ, 262 Lepargyræa, 191 canadensis, 192 Leptarrhena, 130 pyrolifolia, 143 Leptasea, 130 austromontana, 145 Van-Bruntiæ, 144 Leptotænia, 201 multifida, 202 Lettuce, Large-flowered Blue, 280 Ligusticum, 201 apiifolium, 203 LILIACEÆ, 41 Lily Family, 41 Mountain, 43 Snow, 44 Lily-of-the-Valley Family, 45 Lilium, 42 montanum, 43 Limnorchis, 55 borealis, 66 dilatatiformis, 64 fragrans, 66 viridiflora, 65 LINACEÆ, 182 Linnæa, 264 americana, 266 Linum Lewisii, 182 Lithophragma, 129 parviflora, 131 Lithospermum, 241 linearifolium, 243 Lobelia, Brook, 275 Kalmii strictiflora, 275 Loco Weed, 174 Lomatium, 201 macrocarpum, 201 triternatum, 202 Lonicera, 264 ebractulata, 269 glaucescens, 268 involucrata, 270 Lousewort, White, 260 Lutkea, 150 pectinata, 151 Cut-leaved, 151 Lychnis, apetala, 84 Nodding, 84 LYCOPODIACEÆ, 18 Lycopodium, alpinum, 21 annotinum, 19 clavatum, 19 complanatum, 20 Selago, 18 sitchensis, 20 Lysichiton kamtschatcense, 36 Lysiella, 54 obtusata, 59 M Madder Family, 263 Mahonia, Trailing, 110 Mairania, 212 alpina, 214 Maple, Family, 185 Smooth, 185 Marigold, White Marsh, 104 Meadow Rue, Veiny, 96 Western, 96 MELANTHACEÆ, 36 Mentha, 245 canadensis, 247 MENTHACEÆ, 244 MENYANTHACEÆ, 236 Menyanthes trifoliata, 236 Menziesia, 212 ferruginea, 219 Smooth, 219 Micranthes, 130 Lyallii, 141 Nelsoniana, 142 rhomboidea, 140 Mimulus, 248 cæspitosus, 255 Lewisii, 254 moschatus, 255 Mint, American Wild, 247 Family, 244 Mistletoe, Dwarf, 73 Mitella, 129 nuda, 132 Mitrewort, 133, 134 Mœhringia, 82 lateriflora, 87 Moneses, 207 uniflora, 210 Monkey-Flower, Red, 254 Yellow, 255 Moon-wort, 1 Small, 2 Mountain-ash, Western, 166 Mountain Lover, 184 Muscaria, 130 adscendens, 138 cæspitosa, 139 Musk Plant, 255 Mustard, Family, 111 Hedge, 122 Tansey, 123 Treacle, 121 Myosotis, 241 alpestris, 243