Part 66

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

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

Rhus copallina Dwarf sumac 137 glabra Smooth sumac 137 hirta, Sudw. Staghorn sumac 134, 135 toxicodendron Poison ivy 137 typhina, L. Staghorn sumac 134, 135 venenata, DC. Dogwood, Poison sumac 136, 137 vernix, L. Dogwood, Poison sumac 136, 137

River ash (Fraxinus Pennsylvanica, Marsh.) 164, 165 birch (Betula nigra, L.) 65, 66 maple (Acer saccharinum, L.) 142-144

Robinia pseudacacia, L. Locust 131, 132 viscosa, Vent. Clammy locust 132

Rock chestnut oak (Quercus prinus, L.) 82-84 elm (Ulmus racemosa, Thomas) 99, 100 maple (Acer Saccharum, Marsh.) 144-146, 172

Rum cherry (Primus serotina, Ehrh.) 127, 128

=Salicaceae.= (Willow family) 28-46 Populus alba, L. Abele, White, Silver-leaf poplar 39, 40 balsamifera, L. Poplar, Balsam. Balm of Gilead 36, 37 balsamifera, var. candicans, Gray. Balm of Gilead 37-39, 171 balsamifera, var. intermedia Poplar, Balsam 36 balsamifera, var. latifolia Poplar, Balsam 36 candicans, Ait. Balm of Gilead 37-39, 171 deltoides, Marsh. Cottonwood, Poplar 34, 35

Populus grandidentata, Michx. Poplar, Large-toothed aspen 31, 32 heterophylla, L. Poplar, Swamp poplar, Cottonwood 33, 34 monilifera, Ait. Cottonwood poplar 34, 35 tremuloides, Michx. Poplar, Aspen 29, 30

Salix alba, L. White willow 43, 45, 46 var. caerulea, Koch White willow 45 var. vitellina, Koch White willow 4 balsamifera, Barrett 171 discolor, Muhl. Pussy willow, Glaucous willow 40, 41, 171 falcata, Pursh Black willow 42 fragilis, L. Crack willow, Brittle willow 43-45 nigra, Marsh. Black willow 42, 43

Sassafras officinale, Nees Sassafras 106-108 Sassafras, Karst. Sassafras 106-108

Savin (Juniperus Virginiana, L.) 26-28

Scarlet oak (Quercus coccinea, Wang.) 88, 89

Scotch pine (Pinus sylvestris, L.) 11, 12

Scrub chestnut oak (Quercus prinoides, Willd.) 85 oak (Quercus ilicifolia, Wang.) 93, 94 pine (Pinus Banksiana, Lamb) 8,9 white oak (Quercus prinoides, Willd.) 85

Shadbush (Amelanchier Canadensis, Medic.) 116, 117

Shagbark (Carya alba, Nutt.) 49-51

Sheep berry (Viburnum Lentago, L.) 168, 169

Silver-leaf poplar (Populus alba, L.) 39, 40 maple (Acer saccharinum, L.) 142-144

=Simarubaceae.= (Ailanthus family) 133 Ailanthus glandulosus, Desf. Tree of Heaven, Chinese sumac 133

Skunk spruce (Picea alba, Link) 16-18

Slippery elm (Ulmus fulva, Michx.) 97, 98

Small white birch (Betula populifolia, Marsh.) 66-68

Smooth sumac (Rhus glabra) 137

Soft maple (Acer rubrum, L.) 140-142 (Acer saccharinum, L.), 142-144

Sorbus Americana, Marsh. Mountain ash 112, 113 sambucifolia, Rm. Mountain ash 113, 115

Sour gum (Nyssa sylvatica, Marsh.) 159, 160

Spruce, Black, Swamp, Double, Water. (Picea nigra, Link) 12-14 Red spruce (Picea rubra, Link) 15, 16 White, Cat, Skunk, Labrador. (Picea alba, Link) 16-18