INDEX. 183 



PAGES 



Crack willow. (Salix fragilis, L.) 43-45 



Cratsegus 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 



sub-mollis, 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 



Drupaceae. (Plum family) 122-128 



Prunus Americana, Marsh. Wild plum 123,124.171 



, ( Wild, Red, Horse, ) 



Americana, var. nigra, Waugh. < _, , > . 122, 123 



( Canada plum . ) 



Avium, L. . . . Hazard cherry ...... 128 



nigra, Ait. Wild, Red, Horse, Canada plum . . 122, 123. 171 



, ( Wild red, Pin, Pigeon, Bird ) 



Pennsylvania, L. f. { > . 124, 125 



( cherry ) 



serotina, Ehrh. . . Rum, Black cherry .... 127, 128 



Virginiana, L. . . Chokecherry 125, 126 



Dwarf birch. (Betula papyrifera, var. minor, Tuckerman) . 68 



black spruce. (Picea nigra, var. semiprostrata) ... 12 



sumac . . . (Rhus copallina) 137 



E 



Ebenaceae. (Ebony family) 160-162 



Diospyros Yirginiana, L. Persimmon 160-162 



Ebony family. (Ebenaceae) 160-162 



Elder, Poison elder . . . (Rhus vernix, L.) 136, 137 



