ily) 134-137
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. Poison elder_, 136, 137
vernix, L. _Dogwood, Poison sumac. Poison elder_, 136, 137

Apple family. (=Pomaceae=) 112-121
Apple tree. (Pyrus malus, L.) 1
=Aquifoliaceae.= (Holly family) 138-140
Ilex opaca, Ait. _American holly_ 138, 140

Ash, Black, Swamp, Basket, Hoop, Brown ash. (Fraxinus nigra,
Marsh.) 167-168
European mountain ash. (Pyrus aucuparia) 113, 115
Green ash. (Fraxinus Pennsylvanica, var. lanceolata,
Sarg.) 166, 172
Mountain ash. (Pyrus Americana, DC.) 112, 113
Mountain ash. (Pyrus sambucifolia, Cham. & Schlecht.) 113-115
Red, Brown, River ash. (Fraxinus pubescens. Lam.) 164,165
White ash. (Fraxinus Americana, L.) 162-164

Ash-leaved maple. (Acer negundo, L.) 151-153

Aspen, Large-toothed. (Populusgrandidentata, Michx.) 31, 32
(Populus tremuloides, Michx.) 29, 30

B

Balm of Gilead. (Populus balsamifera, L.) 36, 37
(Populus candicans, Alt.). 37-39, 171

Balsam. (Abies balsamea, Mill.) 20-22
(Populus balsamifera, L.) 36, 37

Basket ash. (Fraxinus nigra, Marsh.) 167, 168

Basswood. (Tilia Americana, L.) 153-155

Bear oak. (Quercus ilicifolia, Wang.) 93, 94

Beech family. (=Fagaceae=) 70-94

Beech (Fagus ferruginea, Alt.) 70-72
Blue beech, Water beech. (Carpinus Caroliniana. Walt.) 59, 60

Betula lenta, L. _Black, Cherry, Sweet birch_ 61, 62
lutea, Michx. L. _Yellow, Gray birch_ 63, 64
nigra, L. _Red, River birch_ 55,66
papyrifera. Marsh. _White, Canoe. Paper birch,_ 68-70
Betula papyrifera, var. minor, Tuckerman. _Dwarf birch_ 68
populifolia, Marsh. _Gray, Poplar, Oldfield, Poverty, Small
white birch_ 66-68

=Betulaceae.= (Birch family) 57-70
Alnus glutinosa, Medic. _European alder_ 70
Betula lenta, L. _Black, Cherry, Sweet birch_ 61, 62
lutea, Michx. f. _Yellow, Gray birch_ 63, 64
nigra, L. _Red, River birch_ 65, 66
papyrifera, Marsh. _White, Canoe, Paper birch_ 68-70
var. minor, Tuckerman