Carpinus Caroliniana, Walt. _Hornbeam. Blue beech. Ironwood. Water beech_ 59,60 Carya alba, Nutt. _Shagbark, Shellbark hickory, Walnut_ 49-51 amara, Nutt. _Bitter nut. Swamp hickory_ 55-57 porcina, Nutt. _Pignut. White hickory_ 53-55 tomentosa, Nutt. _Mockernut. White-heart hickory. Walnut_ 51-53 Castanea dentata. Borkh. _Chestnut_ 72-74 sativa, _var._ Americana, Watson & Coulter. _Chestnut_ 72-74 vesca, _var._ Americana, Michx. _Chestnut_ 72-74 Cat spruce. (Picea alba, Link) 16-18 Cedar, Arbor vitae. White cedar. (Thuja occidentals, L.) 23,24 Red cedar. Savin. (Juniperus Virginiana. L.) 26-28 White cedar. (Chamaecyparis sphaeroidea, Spach) 25,26 Celtis occidentalis. L. _Hackberry, Nettle tree, Hoop ash, Sugar berry_ 100-102 Chamaecyparis sphaeroidea. Spach. White cedar 25,26 Cherry. (Primus Avium, L.) 128 Chokecherry. (Prunus Virginiana, L.) 125,126 Rum, Black cherry. (Prunus serotina, Ehrh.) 127,128 Wild red, Pin, Pigeon, Bird cherry Prunus Pennsylvania, L. f. 124,125 Cherry birch. (Betula lenta, L.) 61,62 Chestnut. (Castanea sativa, _var_. Americana, Watson & Coulter) 72-74 Chestnut oak. (Quercus Muhlenbergii, Engelm.) 84,85 (Quercus prinus, L.) 82-84 Chinese sumac. (Ailanthus glandulosus, Desf.) 133 Chokecherry. (Prunus Virginiana, L.) 125,126 Clammy locust. (Robinia viscosa, Vent.) 132 Cockspur thorn (Crataegus Crus-Galli, L.) 117, 118, 171 Conifer family, (=Pinoideae=) 1-28 Cork elm. (Ulmus racemosa, Thomas) 99,100 =Cornaceae.= (Dogwood family) 150-160 Cornus alternifolia, L, f. _Dogwood, Green osier_ 157, 158 florida, L _Flowering dogwood, Boxwood_ 156, 157 Nyssa sylvatica. Marsh. _Tupelo, Sour gum, Pepperidge_ 159, 160 Cottonwood (Populus deltoides, Marsh.) 34, 35 (Populus heterophylla. L.) 33, 34 Crack willow. (Salix fragilis, L.) 43-45 Crataegus Arnoldiana, Sarg. _Thorn_ 121 coccinea, L. _Thorn_ 118, 119 coccinea, _var._ mollis, T. & G. _Thorn_, 120, 121 Crus-Galli, L. _Cockspur thorn_ 117, 118, 171 mollis, Scheele _Thorn_ 120, 121 punctata, Jacq. _Cockspur thorn_ 118 submollis, Sarg. _Thorn_ 121 subvillosa, Schr. _Thorn_ 120, 121 =Cupressaceae.= (Pinoideae) 23-28 Cupressus 25, 26 Juniperus 26-28 Thuja 23, 24 Cupressus thyoides, L. _White cedar_ 25, 26 D Diospyros Virginiana, L. _Persimmon_ 160-162 Dogwood family. (=Cornaceae=) 156-160 Dogwood (Rhus vernix, L.) 136, 137 Flowering dogwood (Cornus florida, L.) 156, 157 Green osier (Cornus alternifolia, L. f.) 157, 158 Double spruce (Picea nigra, Link) 12-14