INDEX TO THE TREES— (Continued) 



Hawthorn, Black, 12, 125, 167 

 Scarlet, 125, 167 

 Yellow, 125, 167 



Hickory, Big Nut, 12, 14, 65 

 Bitternut, 12, 14, 61, 166 

 Mockernut, 12. 14, 67, 166 

 Shagbark, 12, 14, 63, 166 

 Shellbark, 12, 14, 63, 166 



Hicoria alba, 12, 14, 67, 166 

 laciniosa, 12, 14, 65, 166 

 minima, 12, 14, 61, 166 

 ovata, 12, 14, 63, 166 



Honey Locust, 12, 168 



Hornbeam, 11, 69, 166 



Horse-chestnut, 12, 147 



Ironwood, 11, 69 



Judas Tree, 10, 133, 168 



Juglans cinerea, 13, 59, 166 



nigra, 13, 57, 166 



regia, 13, 59 



Juneberry, 11, 17 



Juniper, Red, 10, 35, 164 



Western Red, 10, 35, 164 



Juniperus scopulorum, 10, 35 



virginiana, 10, 35 

 Kentucky Coffee Tree, 12, 131, 163 

 Larch, 10, 25 

 Larix, americana, 10, 25 



europea, 10, 25 



Linden, 11, 149, 168 



Locust, Black, 12, 127 

 Honey, 12, 125, 168 



Lombardy Poplar, 13, 49 



Malus iowensis, 11, 13 



Maple, Ash-leaved, 12, 15, 143 



Hard, 12, 15, 139 



Mountain, 143 



Norway, 15. 141 



Rock, 15, 139 



Silver, 15, 137, 168 



Soft, 15, 137, 168 



Sugar, 15, 139 

 Mockernut Hickory, 12, 14, 67, 166 

 Morus rubra, 11, 107, 167 

 .Mountain Ash, 12, 115 



Maple, 143 

 Mulberry, Red, 11, 107, 167 

 Nannyberry, 163 

 Narrow-leaf Cottonwool. 13, 55 

 Xorway Maple, 15, 141 



Spruce, 13, 27 



Oak, Black, 14, 79 



Black Jack, 14, 85, 165 

 Bur, 14, 91 

 Chestnut, 14, 93 

 Laurel, 14, 95, 165 

 Pin, 14, 81 

 Red, 14, 77, 165 

 Scarlet, 14, 83, 165 

 Shingle, 14, 95 

 Swamp white, 14, 89, 1(!5 

 White, 14, 87, 165 

 Yellow, 14, 93, 165 

 Yellow, Dwarf, 93, 165 



Ohio Buckeye, 12, 15, 145 

 Olive, Russian, 10, 161 

 Osage Orange, 10, 105 

 Ostrya virginiana, 11, 69, 166 



Pawpaw, 10, 111, 167 



Paper Birch, 14, 73, 166 



Picea canadensis, 13, 29 

 excelsa, 13, 27 

 parryana, 27 



Pin Oak, 14, 81 



Pine, Austrian, 13, 19 

 Black, 19 

 Scotch, 13, 21 

 Western Yellow, 13, 23 

 White, 13, 17 



Pinus austriaca, 13, 19 



ponderosa, 13, 23, 164 

 strobus, 13, 17 

 sylvestris, 13, 21 



Platanus occidentalis, 12 t 109, 168 



Plum, Wild, 11, 15, 119, 167 



Poplar, Narrow-leaf, 13, 55, 164 

 Lombardy, 11, 13, 49 

 Rydberg's, 13, 53, 164 

 White, 13, 51. 



Populus acuminata, 13, 53, 164 

 alba, 13, 51 



angustifolia, 13, 55, 164 

 balsamifera, 13, 45, 164 

 deltoides, 11, 13, 43, 164 

 nigra italica, 11, 13, 49 

 tremuloides, 11, 13, 46, 165 



Prairie Apple, 11, 113 



Prunus americana, 15, 119, 167 

 melanocarpa, 15, 123 

 serotina, 15, 121, 167 

 virginiana, 15, 123, 167 



—170— 



