324 



INDEX. 



Page. 



Sage, nettle-leaf .' 244 



Sagina 153 



Sagittaria , 65 



Sago pondweed 64 



St. Andrew's cross 204 



St. John's-wort 204 



common 205 



family 204 



marsh 205 



slirubby 204 



St. Peter's-wort ; 204 



Salad bumet 177 



corn 261 



Salicaceae 132 



Salomonia 124 



Salsify ■ 264 



Salsola '■ 148 



Saltwort 148 



Salvia 244 



Sambucus 261 



Samolus 225 



Sand blackberry 175 



grape 202 



spurry 151 



vine 231 



Sandalwood family 143 



Sandbar willow 133 



Sandbur SO 



Sandwort 153 



Sanguiuaria 162 



Sanguisorba 177 



Sanicula 217 



Santalaceae 143 



Sapindaceae 201 



Saponaria .--- 155 



Sarothra 205 



Sarracenia .". . - 170 



Sarraceniaceae 170 



Sarsaparilla, wild 215 



Sassafras 162 



Satureja 244,245 



Saul's oak 140 



Saururaceae 132 



SaurmTis 132 



Saxifraga 172 



Saxifragaceae 171 



Saxifrage 172 



family 171 



Scandix 215 



Scarlet oak 140 



Schizackyrium 72 



subgenus 71 



Schizaeaceae 53 



Schmaltzia 199 



Schollera 117 



Scilla 120 



Scirpus 95, 96 



Scleranthus 151 



Scleria 99 



Scorpion-grass 238 



Scotch fir 61 



thistle 292 



Scott's spleenwort 55 



Scouring-rush 58 



Scrophularia 250 



Scrophulariaceae 248 



Page.' 



Scrub chestnut oak 140 



pine 61 



Scutellaria 241 



Seaman, "Wm. H 13 



Secale 91 



Sedge, broom 72 



family 92 



Sedum 171 



Seed-box 213 



Selaginella family 60 



Selaginellaceae 60 



Seneca snakeroot 193 



Senecio 291 



Senna family 180 



vnld 180 



Sensitive fern 54 



pea 181 



Serapias 130 



Sericocarpus, 278 



Serviceberry 178 



Seseli 215 



Setaria 80 



Setiseapella 255 



Shadbush 178 



Shag-bark hickory 136 



Sheep fescue 89 



laurel 223 



sorrel 144 



Shell-bark hickory 136 



Shepherd 's-purse 165 



Sherardia 257 



Shield-fern, marginal 68 



Shingle oak 139 



Shining bedstraw 258 



Shmleaf 221 



family 220 



Shooting star 227 



Siberian crab apple 1 77 



Sickle-pod 168 



Sicyos 262 



Sida 203 



Silenaceae 153 



Silene 153 



Silky willow 134 



Silphium 285 



Silver aster 281 



maple 200 



poplar 135 



Silver-rod" 276 



Silver-weed 176 



Silvery spleenwort 56 



Simaroubaceae 193 



Sinapis 1-70 



Sisymbrium 166, 167 



Sisyrinchium 126 



Slum 219 



Skeels, H. C 14 



Skeleton-weed 265 



Skullcap 241 



mad-dog 242 



Skunk cabbage 114 



Sleepy catchfly 154 



Slender violet 210 



Small cane 92 



Smartv.eed .• 146 



dodder 235 



