Part 59

=Villose= or =villous.= With long, soft hairs.

=Whorl.= Arranged in a circle about an axis.

INDEX.

Abele. (Populus alba, L.) 39, 40

Abies balsamea, Mill. Fir balsam 20-22

=Abietacae.= (=Pinoideae=) 1-22 Larix 1-4 Pinus 4-12 Picea 12-18 Tsuga 19, 20 Abies 20-22

Acacia, (Robinia Pseudacacia, L.) 131, 132 (Robinia viscosa, Vent.) 132 Three-thorned. (Gleditsia triacanthos, L.) 129, 130

=Aceraceae.= (Maple family). 140-153 Acer barbatum, Michx. Rock, Sugar, Hard maple, Sugar tree 144-146 barbatum, var. nigrum, Sarg. Black maple 146, 147 dasycarpum, Ehrh. Silver, Soft, White, River maple 142-144 Negundo, L. Box elder, Ash-leaved maple 151-153 nigrum, Michx. Black maple 146,147 Pennsylvanicum, L. Striped maple, Moosewood, Whistlewood 149-151 platanoides Norway maple 146 rubrum, L. Red, Swamp, Soft, White maple 140-142 saccharinum, L. Silver, Soft, White, River maple 142-144 saccharinum, Wang. Rocky Sugar, Hard maple, Sugar tree 144-146 saccharinum, var. nigrum, T. and G. Black maple 146, 147 Saccharum, Marsh. Rock, Sugar, Hard maple, Sugar tree 144-146 Saccharum, Marsh., var. barbatum, Trelease 172 Saccharum, Marsh., var. nigrum, Britton. Black maple 146, 147, 172 spicatum, Lam. Mountain maple 148, 149 Negundo aceroides, Moench. Box elder, Ash-leaved maple 151-153 Negundo, Karst, Box elder, Ash-leaved maple 151-153

Ailanthus family. (=Simarubaceae=) 133

Ailanthus, Tree of Heaven, Chinese sumac (Ailanthus glanulosus, Desf.) 133

Alder, European. (Alnus glutinosa, Medic.) 70

Alnus glutinosa, Medic, European alder 70 Amelanchier Canadensis, Medic. Shadbush, June-berry, 116, 117 American elm (Ulmus Americana, L.) 95-97 holly. (Hex opaca, Alt.) 138-146

=Anacardiaceae.= (Sumac family) 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

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. Dwarf birch 68 populifolia, Marsh. Gray, Poplar, Oldfield, Poverty, Small white birch 66-68 Carpinus Caroliniana, Walt. Hornbeam, Blue beech, Ironwood, Water beech 59, 60 Ostrya Virginica, Willd. Hop hornbeam, Ironwood, Leverwood 57, 58

Birch family. (=Betulaceae=) 57-70

Birch. Black, Cherry, Sweet birch. (Betula lenta, L.) 61, 62 Canoe, White, Paper birch. (Betula papyrifera, Marsh.) 68-70 Red, River birch (Betula nigra, L.) 65, 66 White, Gray, Oldfield, Poplar, Poverty, Small white birch (Betula populifolia, Marsh.) 66-68 Yellow, Gray birch. (Betula lutea, Michx. f.) 63, 64