Large-toothed aspen . . (Populus grandidenta, Michx.) 31,32 Larix Americana, Michx. _Tamarack, Hacmatack, Larch, Juniper_ 2-4 laricina, Koch. _Tamarack, Hacmatack, Larch, Juniper_ 2-4 =Lauraceae.= (Laurel family) 106-108 Sassafras officinale. Nees. _Sassafras_ 106-108 Sassafras, Karst. _Sassafras_ 106-108 Laurel family. (=Lauraceae=) 106-108 =Leguminosae.= (Pulse family) 129-132 Gleditsia triacanthos, L. _Honey locust, Three-thorned acacia_ 129, 130 Robinia pseudacacia. L. _Locust_ 131, 132 viscosa, Vent. _Clammy locust_ 132 Lemon walnut (Juglans cinerea, L.) 46, 47 Leverwood (Ostrya Virginica, Willd.) 57, 58 Lime. (Tilia Americana, L.) 153-155 Linden family. (=Tiliaceae=) 153-155 Linden. (Tilia Americana, L.) 153-155 Liquidambar Styraciflua, L. _Sweet gum_ 108, 109 Liriodendron Tulipifera, L. _Tulip tree, Whitewood, Poplar_ 104-106 Locust. (Robinia pseudacacia, L.) 131, 132 Clammy locust (Robinia viscosa, Vent.) 132 Honey locust (Gleditsia triacanthos, L.) 129,130 M Magnolia family. (=Magnoliaceae=) 104-106 =Magnoliaceae.= (Magnolia family) 104-106 Liriodendron Tulipifera, L. _Tulip tree, Whitewood, Poplar_ 104-106 Malus Malus, Britton. Apple tree 115 Maple family. (=Aceraceae=) 140-153 Maple, Black maple (Acer Saccharum, Marsh., _var._ nigrum, Britton) 127, 146, 172 Box elder, Ash-leaved maple. (Acer negundo, L.) 151-153 Mountain maple (Acer spicatum, Lam.) 148, 149 Norway maple (_cultivated_) (Acer platanoides) 146 Red, Swamp, Soft, White maple. (Acer rubrum, L.) 140-142 Rock, Sugar, Hard maple, Sugar tree. (Acer Saccharum, Marsh.) 144-146, 172 Silver, Soft, White maple, River (Acer saccharinum, L.) 142-144 Striped maple, Moosewood, Whistlewood. (Acer Pennsylvanicum, L.) 149-151 Mazard cherry. (Prunus Avium, L.) 128 Mockernut. (Carya tomentosa, Nutt.) 51-53 Moosewood. (Acer Pennsylvanicum, L.) 149-151 =Moraceae.= (Mulberry family) 102-104 Morus alba, L. _White mulberry_ 104 rubra, L. _Red mulberry_ 102, 103 Mossy-cup oak (Quercus macrocarpa, Michx.) 79, 80 Mountain ash (Pyrus Americana, DC.) 112, 113 (Pyrus sambucifolia, Cham. & Schlecht.) 113-115 Mountain ash, European. (Pyrus aucuparia) 113, 115 maple (Acer spicatum, Lam.) 148, 149 Mulberry family. (=Moraceae=) 102-104 Mulberry, Red mulberry. (Morus rubra. L.) 102, 103 White mulberry. (Morus alba, L.) 104 N Nanny plum (Viburnum Lentago, L.) 168, 169 Negundo aceroides, Moench. _Box elder, Ash-leaved maple_ 151-153 Negundo, Karst. 151-153 Nettle tree (Celtis occidentalis, L.) 100-102 Norway maple. (Acer platanoides) 146 pine (Pinus resinosa, Ait.) 10, 11 Nyssa sylvatica, Marsh. _Tupelo, Sour gum, Pepperidge_ 159, 160 O