=Drupaceae.= (Plum family) 122-128 Prunus Americana, Marsh. _Wild plum_ 123, 124, 171 Americana, _var._ nigra, Waugh. _Wild, Red, Horse, Canada plum_ 122, 123 Avium, L. _Mazard cherry_ 128 nigra, Ait. _Wild, Red, Horse, Canada plum_ 122, 123, 171 Pennsylvanica, L. f. _Wild red, Pin, Pigeon, Bird cherry_ 124, 125 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 Virginiana, L. Persimmon 160-162 Ebony family. (=Ebenaceae=) 160-162 Elder, Poison elder. (Rhus vernix, L.) 136, 137 Elm family. (=Ulmaceae=) 95-102 Elm, American elm (Ulmus Americana, L.) 95-97 Cork, Rock elm (Ulmus racemosa. Thomas) 99, 100 Slippery, Red elm (Ulmus fulva, Michx.) 97, 98 European alder (Alnus glutinosa. Medic.) 70 mountain ash (Pyrus aucuparia) 113-115 F =Fagaceae.= (Beech family) 70-94 Castanea dentata, Borkh. _Chestnut_ 72-74 sativa, _var._ Americana, Watson & Coulter _Chestnut_ 72-74 vesca, _var._ Americana, Michx. _Chestnut_ 72-74 Fagus Americana, Sweet _Beech_ 70-72 atropunicea, Sudw. _Beech_ 70-72 ferruginea, Ait. _Beech_ 70-72 Quercus acuminata, Sarg. _Chestnut oak_ 84, 85 alba, L. _White oak_ 75-77 bicolor, Willd. _Swamp white oak_ 80-82 coccinea, Wang. _Scarlet oak_ 88, 89 coccinea, _var._ tinctoria, Gray. _Black, Yellow oak_ 89-91 ilicifolia, Wang. _Scrub, Bear oak_ 93, 94 macrocarpa, Michx. _Bur, Over-cup, Mossy-cup oak_ 79, 80 minor, Sarg. _Post, Box white oak_ 77-78 Muhlenbergii, Engelm. _Chestnut oak_ 84, 85 nana, Sarg. _Scrub oak, Bear oak_ 93, 94 obtusiloba, Michx. _Post, Box white oak_ 77, 78 palustris, Du Roi _Pin, Swamp, Water oak_ 91-93 platanoides, Sudw. _Swamp white oak_ 80-82 prinoides, Willd. _Scrub white oak. Scrub chestnut oak_ 85 prinus, L. _Chestnut, Rock chestnut oak_ 82-84 pumila, Sudw. _Scrub, Bear oak_ 93, 94 rubra, L. _Red oak_ 86, 87 stellata, Wang. _Post, Box white oak_ 77, 78 tinctoria, Bartram _Black, Yellow oak_ 89-91 velutina, Lam. _Black, Yellow oak_ 89-91 Fir (Abies balsamea, Mill.) 20-22 Fir balsam (Abies balsamea, Mill.) 20-22 Fraxinus Americana, L. _White ash_ 162-164 lanceolata. Borkh. _Green ash_ 166, 172 nigra. Marsh. _Black, Swamp, Basket, Hoop, Brown 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