wn ash_ 167, 168
Pennsylvanica, Marsh. _Red, Brown, River ash_ 164, 165

Fraxinus Pennsylvania, _var._ lanceolata, Sarg. _Green ash_ 166, 172
pubescens, Lam. _Red, Brown, River ash_ 164,165
sambucifolia, Lam. _Black, Swamp, Basket, Hoop, Brown ash_ 167, 168
viridis, Michx. f. _Green ash_ 166, 172

G

Glaucous willow. (Salix discolor, Muhl.) 40, 41

Gleditsia triacanthos, L. _Honey locust_ 129, 130

Gray birch. (Betula lutea, Michx. f.) 63,64
(Betula populifolia, Marsh.) 66-68
pine. (Pinus Banksiana, Lam.) 8, 9

Green ash. (Fraxinus Pennsylvanica, _var._ lanceolata, Sarg.) 166, 172
osier. (Cornus alternifolia, L. f.) 157, 158

Groome estate, Dorchester, Mass., Willow. (_Salix fragilis_, 1890) 44

Gum, (Liquidambar Styraciflua, L.) 108, 109
Sour gum. (Nyssa sylvatica, Marsh.) 159, 160

H

Hackberry. (Celtis occidentalis, L.) 100-102

Hacmatack. (Larix Americana, Michx.) 2-4

=Hamamelidaceae.= (Witch Hazel family) 108, 109
Liquidambar styraciflua, L. _Sweet gum_ 108, 109

Hard maple. (Acer Saccharum, Marsh.) 144-146
pine. (Pinus rigida, Mill.) 6, 7

Hemlock. (Tsuga Canadensis, Carr.) 19, 20

Hickory. Bitternut, Swamp hickory. (Carya amara, Nutt.) 55-57
Mockernut, White-heart hickory. (Carya tomentosa, Nutt.) 51-53
Pignut, White hickory. (Carya porcina, Nutt.) 53-55
Shagbark, Shellbark hickory. (Carya alba, Nutt.) 49-51

Hicoria alba, Britton. _Mockernut, White-heart hickory, Walnut_ 51-53
glabra, Britton. _Pignut, White hickory_ 53-55
minima, Britton. _Butternut, Swamp hickory_ 55-57
ovata, Britton. _Shagbark, Shellbark hickory, Walnut_ 49-51

Holly family. (=Aquifoliaceae=) 138-140

Holly, American holly. (Ilex opaca, Ait.) 138-140

Honey locust. (Gleditsia triacanthos, L.) 129,130

Honeysuckle family. (=Caprifoliaceae=) 168,169

Hoop ash. (Celtis occidentals, L.) 100-102
(Fraxinus nigra, Marsh.) 167, 168

Hop hornbeam. (Ostrya Virginica, Willd.) 57,58

Hornbeam. (Carpinus Caroliniana, Walt.) 59, 60

Horse plum. (Prunus nigra, Ait.) 122,123

I

Ilex opaca, Ait. _American holly_ 138-140

Ironwood. (Carpinus Caroliniana, Walt.) 59, 60
(Ostrya Virginica, Willd.) 57, 58

Ivy, Poison ivy. (Rhus toxicodendron) 137

J

Jack pine. (Pinus Banksiana, Lamb) 8, 9

=Juglandaceae.= (Walnut family) 47-57
Carya alba, Nutt. _Shagbark, Shellbark