230 



Page. 



Mahaleb, 165 



pennss'lvanica , 168 



Persica, 165 



pumila, 165 



serotina, 166 



virginiana, 167 



Pulse famBy, 47, 176 



Pussy Willow, 92 



Pyrus: 



americana, 173 



coronaria, 172 



Quaking Aspen, 96 



Quassia family, 187 



Quercus, 128 



alba 55, 132 



bicolor, 135 



coccinea , 141 



f alcata , 143 



ilicifolia, 56, 144 



imbricaria , 146 



macrocarpa, 134 



marylandica, 145 



MuUenbergii, 136 



nana, 56 



palustris, 140 



pheUos, 147 



prinoides, 138 



Prinus, 137 



pumUa, 56 



rubra 56, 139 



stellata, 133 



velutina 142 



Redbud, 180 



Rhododendron, 31, 208 



maximum , 208 



Rhus: 



canadensis, 182 



copallina , 186 



Cotinus, 182 



glabra , 182 



Toxicodendron , 182 



typhina, 185 



Vernix, 184 



Robinia Pseudo-Acacia, 181 



Rosaceae, 164 



Rose Bay, 208 



Rose family, 164 



Salicaceae, 88 



Salix, 89 



babylonica , 89 



discolor, 92 



fragilis, 89 



lucida , 91 



Page . 



nigra 90 



rostrata , •. 93 



Sambucus canadensis, 218 



Sapindaceae, 200 



Sarvice, 174 



Sassafrac, 161 



Sassafras, 38,50,161 



variifolium , 161 



Savin, 87 



Saxifrax, 161 



Sequoia, 32, 33 



Service Berry, 174 



Shad Bush, ' 38,48,174 



Sheepberry , 218,219 



Simarubaceae, 187 



Slippery Elm, 150 



Smoke Tree, 182 



Soapberry family, 200 



Sorrel Tree, 209 



Sour Gum, 206,209 



Sour-wood, 209 



Spanish Oak, 143 



Spice Bush, 161 



Spruce, 31,36,50,55,78 



Black, 81 



Colorado Blue, 79 



European, 82 



Norway, 22,79,82 



Pine, 80, 83 



Red, 80 



Stag-bush, 219 



Sugarberry, 152 



Sumach, 38, 48 



Dwarf, 186 



Fragrant, 182 



Mountain, 186 



Poison, 184 



Smooth, 182,185 



Staghorn , 185 



Swamp, 184 



Velvet, 185 



Sycamore, 175 



Tamarack, 77 



Taxaceae, 67 



Taxus canadensis 67 



Thorn Apple 170 



Newcastle, 170 



Scarlet, 171 



Tree 179 



Thuja occidentalis, 86 



