Oak, Black, Yellow oak (Quercus velutina, Lam.) 89-91 Bur, Over-cup, Mossy-cup oak (Quercus macrocarpa, Michx.) 79, 80 Chestnut oak (Quercus Muhlenbergii) 84, 85 Chestnut, Rock chestnut oak (Quercus prinus, L.) 82-84 Pin, Swamp, Water oak (Quercus palustris, Du Roi) 91-08 Post, Box white oak (Quercus stellata, Wang.) 77, 78 Red oak (Quercus rubra, L.) 86, 87 Scarlet oak (Quercus coccinea, Wang.) 88, 89 Scrub, Bear oak (Quercus ilicifolia, Wang.) 93, 94 Scrub chestnut, Scrub white oak (Quercus prinoides. Willd.) 85 Swamp white oak (Quercus bicolor, Willd.), 80-82 White oak (Quercus alba, L.) 75-77 Oilnut (Juglans cinerea, L.) 46, 47 Oldfield birch (Betula populifolia, Marsh.) 66-68 =Oleaceae.= (Olive family) 162-168 Fraxinus Americana, L. _White ash_ 162-164 lanceolata, Borkh. _Green ash_ 166, 172 nigra, Marsh. _Black, Swamp, Basket, Hoop, Brown ash_ 167, 168 Pennsylvania, Marsh. _Red, Brown, River ash_ 164, 165 Pennsylvania, _var._ lanceolata, Sarg. _Green ash_ 166, 172 pubescens, Lam. _Red, Brown, River ash_ 164, 165 sambucifolia, Lam. _Black, Swamp, Basket, Hoop, Brown ash_ 167, 168 viridis, Michx. f. _Green ash_ 166 Olive family. (=Oleaceae=) 162-168 Osier (Cornus alternifolia, L. f.) 157, 158 Ostrya Virginica, Willd. _Hop hornbeam, Ironwood, Leverwood_ 57, 58 Over-cup oak. (Quercus macrocarpa, Michx.) 79, 80 P Paper birch (Betula papyrifera, Marsh.) 68-70 Pear tree (Pyrus communis, L.) 115 Pepperidge (Nyssa sylvatica, Marsh.) 159, 160 Persimmon (Diospyros Virginiana, L.) 160-162 Picea alba, Link _White spruce_ 16-18 Canadensis, B. S. P. _White spruce_ 16-18 nigra, Link. _Black spruce_ 12-14 nigra, _var._ semiprostrata _Dwarf black spruce_ 12 rubra, Link _Red spruce_ 15, 16 Pigeon cherry (Primus Pennsylvanica, L. f.) 124, 125 Pignut (Carya porcina, Nutt.) 53-55 Pin cherry (Prunus Pennsylvanica, L. f.) 124, 125 oak (Quercus palustris, Du Roi) 91-93 Pine family: Conifers. (=Pinoideae=) 1-28 Pine. Jack, Gray, Scrub, Spruce pine (Pinus Banksiana, Lamb) 8, 9 Pitch, Hard pine (Pinus rigida, Mill.) 6, 7 Red, Norway pine (Pinus resinosa, Ait.) 10, 11 Scotch pine (_dit_ incorrectly Scotch fir) (Pinus sylvestris, L.) 11, 12 White pine (Pinus Strobus, L.) 4-6