INDEX 



355 



Shepherd's Purse, 92, 95, 102 

 Sherard, James, 288 

 Sherardia arvensis, 288 (289) 

 Shoreweed, 274 

 Short sclerenchyma, 10 

 Sieve parenchyma cells, 1 1 

 Silene, 129 

 Silenoidese, 129, 130 

 Silicates, 52 

 Silicon, i8, 47, 52 

 Siliculosae, 94 

 Siliquosae, 93 

 Sleep movements, 30, 168 

 Small Alyssum, no 

 Small-leaved Lime, 159 

 Small Yellow Balsam, 173 

 Smooth-headed Poppy, 83 

 Snake root, 140 

 Snowball, 276 

 Snowberry, 276 

 Sodium, 47, 51, 52 



„ chloride, 48 



,, silicate, 52 

 Soil, 17, 20, 23, 31,36,48 



,, water, 18, 48 

 Sorrel, 56 

 Sowbread, 328 

 Spectrum, 29 

 Spergula, 129 

 Spergularia, 129 

 Spermatophytes, 59 

 Sperm-cell, 16 

 Spiked Rampion, 313 

 Spikenard, 291 

 Spindle-wood, 183, 185(187) 



„ „ Group, 61, 176, 177, 



178, 182, 183, 184, 191 

 Spongy parenchyma, 14, 15, 40 

 Spotted Rockrose, 122 

 Spur Valerian, 290, 291 

 Spurge Group, 178 



Spurrey, 89 



Square-stalked St. John's Wort, 



131 

 Squinancy Wort, 281, 285, 288 

 Squirting Cucumber, 253 

 St. John's Wort, 301 



„ „ Group, 126, 150, 



154 

 Stamens, 16 

 Starch, 7, 8, lo, 27, 37, 45» 5i. 55, 



56 

 Starch-formation, 29, 46, 47, 51 

 Starch sheath, lO 

 Starwort, 137, 130, 231, 232, 238 

 Statice, 326 



,, maritima, 324 (326) 

 Stellaria Holostea, 128 

 Stem, 12, 13 

 Steppes, 23 

 Sterculariaceae, 160 

 Stigma, 16 



Stitchwort Group, 126 

 Stomata, 9, 15, 25, 39, 40, 41, 42 

 Stone Age, 163 

 Stonecells, 10, 55 

 Stone Crop, 102, 182, 218, 223 



„ Group, 182, 183, 212, 

 218, 273 



„ Parsley, 259 

 Stork's Bill, 167, 282 

 Strand plants, in 

 Strawberry Tree, 315 

 Strontium, 52 

 Suberin, 55 

 Submerged leaves, 25 

 Subularia aquatica, 105 (107) 

 Sugar, 45 



Sugar-formation, 51 

 Sulphur 47, 49, 52, 56 



Wort, 259, 301 

 Sulphuretted hydrogen, 52 



