300 



INDEX 



Oleaceae 244 



Oleaster Family 208 



Olive Family 244 



Olney 261 



opulifolius, Physocarpus. . . . 



99, 100 (fig.) 



Oquawka 70 



Sand Lands 5 



Orange Flower Tree 89 



orbiculatus, Symphoricarpos 



266, 267 (fig.) 



Oregon 143, 165 



Osiers 34 



Ostrya 61 



ostryifolius, Rubus 113 



ovatus, Ceanothus 



183 (fig.), 184 



Oxyacantha, Crataegus 139 



Oxycoccus, Vacciniura 



, 234 (fig.), 236 



Ozark 



Mountains 3, 5 



Region 88, 106 



Ozarks. .5, 32, 78, 95, 102, 124, 



148, 164, 201, 202, 223, 232, 



233, 239, 248, 258, 259, 261, 266 



Pagoda Dogwood 219 



pallidum, Vaccinium 233 



palmata, Vitis. . .191, 192 (fig.) 

 palustris 



Dirca 207 (fig.) 



Rosa 119 (fig.), 120 



Parkersburg 261 



Parthenocissus 194, 196 



inserta 198 (fig.), 199 



quinquefolia. . .197, 198 (fig.) 



hirsuta 199 



Saint-Paulii 199 



Pasture 



Gooseberry 94, 95 



Rose 121, 122, 127 



Pavia, Aesculus 176 (fig.) 



Pea Family 144 



pedicellaris, Salix. .43 (fig.), 47 



Peoria 44, 48, 199, 228, 233 



County.... 5, 51, 54, 180, 249, 

 262 

 peregrina, Comptonia. .60 (fig.) 



pergratus, Rubus 117 



Perry County 272 



Peru 229 



petiolaris, Salix. .49, 50 (fig.), 56 

 Phaenopyrum, Crataegus 



138 (fig.), 139 



Philadelphus 89 



coronarius 87 (fig.), 89 



verrucosus 89 



Phoradendron 71 



flavescens 71, 72 (fig.) 



Physocarpus 99 



intermedins 100 (fig.), 101 



opulifolius 99, 100 (fig.) 



Pike County 6, 64, 113, 245 



Pinaceae 26 



Pinckneyville 272 



Pine Family 26 



Pink Azalea 221 



Pinnate-Leaved Ampelopsis 196 

 Pipe 



Dutchman's 73, 74 



Vine 73 



Woolly 73, 74 



Plum 



Chickasaw 140 



Family 139 



Plums 139 



Poison 



Elder 158 



Ivy 159, 161 



Oak 159 



Sumac 5, 158 



Pope County... 88, 89, 128, 146, 

 148, 177, 199, 208, 214, 233, 

 258, 261 



Possumhaw 162, 164, 165 



Potentilla 103 



fruticosa 104 (fig.) 



Prairie 4 



Rose. col. frontis., 4, 118, 120 



Willow 4, 51, 52 



Prickly-Ash 149, 151 



