444 
INDEX. 
Sage-brush, 382 
Sagina, 130 
Sagittaria, 14 
SalicacE^e, 91 
Salicales, 91 
Salic ornia, 119 
Salix, 92 
Salmon-berry, 180 
Salomonia, 85 
Salsify, 403 
Salsola, 120 
Salt-grass, 40 
Salt-wort, 120 
Salt-wort, Black, 263 
Salvia, 298 
Salviniales,5 
Sambucus, 323 
Sandal-wood Family, 101 
Sand-bur, 22 
Sand-foin, 216 
Sand-grass, 32, 37 
Sand Lily ( Touterea) 
Sand Puffs ( Abronia) 
Sand-spur, 22 
Sand Spurry, 132 
Sandwort, 130, 131 
Sanicula, 251 
Santalace^e, ioi 
Santalales, 100 
Sapindales, 225 
Saponaria, 134 
Sarcobatus, 119 
Savastana, 23 
Savins, 9 
Savin, Trailing, 10 
Saxifraga, 173-175 
Saxifragace^e, 170 
Saxifrage, 173 
Saxifrage, Golden, 171 
Saxifrage Family, 170 
SCHEUCHZERIACEJE, 14 
Schedonardus, 36 
Schizachyrium, 19 
Schkuhria, 377 
Schleropogon, 37 
Schmaltzia, 226 
Schcenocrambe, 157 
Schrankia, 194 
Scirpus, 58 
Scorpion-weed ( Phacelia) 
Scrophularia, 305 
Scullcap, 296 
Scurvy-grass, 160 
Scutellaria, 296 
Sea Blite, 119 
Sea Milkwort, 264 
Sea-purslane, 124 
Sedge, 60 
Sedge Family, 57 
Sedum, 170 
Seed-bearing Plants, 7 
Sego Lily, 85 
Selaginella, 6 
SELAGINELLACE.E, 6 
Selaginella Family, 6 
Self-heal, 297 
Senecio, 389 
Senecionide^e, 387 
Senna Family, 194 
Sensitive-brier, 194 
Service-berry ( Amelanchier ) 
Sessuvium, 124 
Set aria, 22 
Shepherdia, 239 
Shepherd’s Purse, 153 
Shooting Star, 263 
Shrubby Cinquefoil, 187 
Sibbaldia, 187 
Sida, 231 
Sidalcea, 229 
Sideranthus, 343 
Sieversia, 188 
Silene, 132 
Silkweed, 270 
Silver-leaf, 186 
Silver Plant ( Eriogonum) 
Sinapis, 160 
Sisymbrium, 157 
Sisyrinchium, 86-159 
Sit anion, 55 
Sium, 254 
Skeleton-weed ( Lygodesmia) 
Skunk-cabbage, 76 
Skunk-grass, 38 
Skunk-weed (Polemonium) 
Slough-grass, 35 
Smart-weed, 111 
Smelowskia, 153 
Smilacace;e, 86 
Smilacina, 84 
Smilax, 86 
Smilax, 86 
Smilax Family, 86 
Snake-root, 251 
Snapdragon ( Mimulus) 
Sneeze-weed, 381 
Snow-ball, 323 
Snow-berry, 323 
Snow-on-the-mountain, 224 
Soap-weed (Yucca) 
SoLANACE^E, 300 
Solanum, 302 
Solidago, 346 
Solomon’s Seal (Salomonia), 85 
Solomon’s Seal, False, 84 
Sonchus, 411 
Sophia, 157 
Sophora, 196 
Sophore^e, 195 
Sorbus, 193 
