Populus alba, L. _Abele, White, Silver-leaved poplar_ 39, 40 balsamifera, L. _Balsam_ 3, 36, 37 balsamifera, _var._ candicans, Gray. _Balm of Gilead_ 37-39, 171 balsamifera, _var._ intermedia _Balsam, Poplar, Balm of Gilead_ 36 Populus balsamifera, _var._ latifolia _Balsam, Poplar, Balm of Gilead_ 36 candicans, Ait., _Balm of Gilead_ 37-39, 171 deltoides, Marsh. _Cottonwood, Poplar_ 34, 35 grandidentata, Michx. _Poplar, Large-toothed aspen_ 31, 32 heterophylla, L. _Swamp poplar, Poplar, Cottonwood_ 33, 34 monilifera, Ait. _Cottonwood_ 34, 35 tremuloides, Michx. _Aspen, Poplar_ 29, 30 Post oak (Quercus stellata, Wang.) 77, 78 Poverty birch (Betula populifolia, Marsh.) 66-68 Prunus Americana, Marsh. _Wild plum_ 123, 124, 171 _var_. nigra, Waugh _Wild, Red, Horse, Canada plum_ 122, 123, 171 Avium, L. _Mazard cherry_ 128 nigra, Ait. _Wild plum_ 122, 123, 171 Pennsylvanica, L. f. _Wild red, Pin, Pigeon, Bird cherry_ 124, 125 serotina, Ehrh. _Rum, Black cherry_ 127, 128 Virginiana, L. _Chokecherry_ 125, 126 Pulse family. (=Leguminosae=) 129-132 Pussy willow (Salix discolor, Muhl.) 40, 41, 171 Pyrus Americana, DC. _Mountain ash_ 112, 113 aucuparia _European mountain ash_ 113, 115 communis, L. _Pear tree_ 115 malus, L. _Apple tree_ 115 sambucifolia, Cham. & Schlecht. _Mountain ash_ 113-115 Q Quercus acuminata, Sarg. _Chestnut oak_ 84, 85 alba, L. _White oak_ 75-77 bicolor, Willd. _Swamp white oak_ 80-82 coccinea, Wang. _Scarlet oak_ 88, 89 coccinea, _var._ tinctoria, Gray. _Black oak_ 89-91 ilicifolia, Wang. _Scrub, Bear oak_ 93, 94 macrocarpa, Michx. _Bur, Over-cup, Mossy-cup oak_ 79, 80 minor, Sarg. _Post, Box white oak_ 77, 78 Muhlenbergii, Engelm. _Chestnut oak_ 84, 85 nana, Sarg. ...._Scrub, Bear oak_ 93, 94 obtusiloba, Michx. _Post, Box white oak_ 77, 78 palustris, Du Roi. _Pin, Swamp, Water oak_ 91-93 platanoides, Sudw. _Swamp white oak_ 80-82 prinoides, Willd. _Scrub white, Scrub chestnut oak_ 85 prinus, L. _Chestnut, Rock chestnut oak_ 82-84 pumila, Sudw. _Scrub, Bear oak_ 93, 94 Quercus rubra, L. _Red oak_ 86, 87 stellata, Wang. _Post, Box white oak_ 77, 78 tinctoria, Bartram. _Black, Yellow oak_ 89-91 velutina, Lam. _Black, Yellow oak_ 89-91 R Red ash (Fraxinus Pennsylvanica, Marsh.) 164, 165 birch (Betula nigra, L.) 65, 66 cedar (Juniperus Virginiana, L.) 26-28 elm (Ulmus fulva, Michx.) 97, 98 maple (Acer rubrum, L.) 140-142 mulberry (Morus rubra, L.) 102, 103 oak (Quercus rubra, L.) 86, 87 pine (Pinus resinosa, Ait.) 10, 11 plum (Prunus nigra, Ait.) 22, 123 spruce (Picea rubra, Link) 15, 16