149 



Ilex 69 



Illecebraceae 31 



Ilysanthes 104 



Impatiens 7 1 



Imperatoria 82 



Indian Cucumber-root 13 



Indian Currant no 



Indian Hemp 90 



Indian Mustard 44 



Indian Pipe 84 



Indian Plantain 122 



Indian Tobacco 113 



Indian Turnip : 8 



Indigo, Wild 61 



Inula 127 



Ipomoea 92 



Iridaceae 15 



Iris 15 



Iris Family 15 



Ironweed 122 



Ironweed, Yellow 128 



Ironwood 32 



Isopyrum 39 



Iva 114 



Jack Pine i 



Jeffersonia 4 



Jerusalem Artichoke 129 



Jerusalem Oak 29 



Jimson Weed 100 



Joe-Pye Weed 122 



Jointweed 27 



Juglandaceae 21 



Juglans 21 



Juncaceae 10 



Juncaginaceae 3 



Juncus 10 



Juneberry 55 



Juniper I 



Juniperus I 



Kalmia 85 



Kenilworth Ivy 103 



Kentucky Coffee-tree 58 



King-nut Hickory 21 



Knapweed 121 



Knawel . 31 



Knotweed 26, 27 



Knotwort Family 31 



Kochia 28 



Koeleria , 6 



Krigia 115 



Kuhnia 122 



Labiatae 95 



Labrador Tea 85 



Lactuca 115, no 



Ladies' Tresses 16 



Lady's Slipper 18 



Lake Cress 45, 46 



Lamb's Quarters 29 



Lamium 99 



Laportea 24 



Lappula 94 



Lapsana 115 



Large-toothed Aspen 19 



Larix I 



Larkspur 36 



Lathyrus 59 



Lauraceae 41 



Laurel Family 41 



Lead Plant .". 58 



Leafcup 123 



Leatherleaf 86 



Leatherwoocl . 77 



Lechea 74, 75 



Ledum 85 



Leek, Wild 13 



Leersia 5 



Leguminosae 58 



Lemna 9 



Lemnaceae 9 



Lentibulariaceae 105 



Leontodon . 1 1 5 



Leonurus 98 



Lepachys 128 



Lepidium 45> 4& 



Lespedeza 61, 63 



Lettuce H5i "6 



Lettuce, Wild 115, "6 



Liatris 121 



Lilac 88 



Liliaceae 10 



Lilium 12 



Lily 12 



Lily Family 10 



Lily of the Valley, Wild 12 



Lily, Pond 35 



Lily, Water 35 



Limnanthaceae 68 



Limosella 103 



Linaceae 63 



Linaria 102, 103 



