INDEX 



453 



ioi ; Holly (Ilex), 160 (fig.) ; 

 Iris, 96, 97 (fig.) ; land-forms 

 of aquatics, 177 ; Madder 

 (Rubia), 97 (fig.), 98 ; Mosses, 

 loo, 284, 285 (fig.) ; Stonecrop 

 (Sedum), 97 (fig.), 98 ; Yellow 

 Pimpernel (Lysimachia) , 160 

 (fig.). 



Stomatal chambers, 161-3 (figs.) ; 

 grooves, 162 (fig.). 



Stomium (of Fern-sporangium), 

 297, 299 (fig.), 300. 



Stone-cells, 30 (fig.), 32, 33. 



Stone-crop (Sedum), leaf of, 116, 

 1 66 ; stoma of, 97 (fig.), 98. 



Stonecrop - family (Crassulaceae), 



178.; 

 Stone Pine (Pinus pined), seed of, 



'/ 352- (fig.). 



Stonewort (Chara), 39, 198, 406. 



Storage of food-reserves, 13, 40, 

 44, 48, 50, 64, 88, 132, 155, 231, 

 273, 276, 343 ; of water, 38, 94 

 (fig.), 95, 158, 166, 167, 272, 343. 



Storage-organs and tissues, 88, 132, 

 133 ; in Algae, 202, 225 (fig.) ; 

 in Fungi, 242 ; in Mosses, 276. 



Stratification, of cell-wall, 29, 33, 

 208 ; of starch-grains, 41, 42 



Strawberry (Fragaria), 370 ; hy- 



dathodes of, 146. 



Streaming of cytoplasm, 4, 6, 104. 

 Streptococcus, 262 ; S. pyogenes, 



263 (fig.). 



Striation of cuticle, 92. 

 Strobilus, 312, 334. See Cones. 

 Structure. See Anatomy, Leaf, 



Root, Stem. 



Struggle for existence, 378, 394. 

 Strychnine, 61. 

 Strychnos nux-vomica, 61. 

 Style, 356, 364. 

 Su&da, 1 66. 

 Suberisation, 136, 137. 

 Suberised walls of, cork, 136, 137, 



138, 142 ; endodermis, 68, 69, 



171 ; exodermis, 67. 

 Sub-hymenium, 240 (fig.), 249 (fig.). 

 Submerged aquatics, structure of, 



91/92, ioi, 170-77 (figs.). 

 Subsidiary cells, 97 (fig.), 98, ioi. 

 Substantive variations, 374, 375 



(fig.), 376 (fig.)- 

 Subterranean parasites, 254. 

 Succulent fruits, 31, 46 ; plants, 



1 1 6, 166, 167, 178 ; storage- 



organs, 44, 50. 



Sucrose, 45, 46 ; hydrolysis of, 46 ;' 



reactions of, 47, 

 Sugar Beet (Beta), 45. 

 Sugar Cane (Saccharum officinarum), 



45, 4 6 ; Maple (Acer saccha- 

 rinum), 45. 



Sugars, 13, 40, 41, 44-7, 155, 364 ; 

 fermentation of, 256, 257 ; 

 hydrolysis of, 46 ; in foliage- 

 leaves, 46 ; in wood, 124 ; 

 microchemical tests for, 47 ; 

 non-reducing, 47 ; of nectaries. 



46, 149 ; reactions of, 47 ; 

 reducing, 47. 



Sulphur-Bacteria, 268. 



Sulphuretted hydrogen, 268 ; in- 

 fluence on enzyme-action, 56. 



Sulphuric acid and cell-walls, 3, 4, 

 32, 68, 92, 137, 402. 



Sundew (Drosera), tentacles of, 

 150. 



Sunflower (Helianthus), 49, 113; 

 stem-structure of, 76-80 (figs.), 



87- 



Sun-leaves, in, 169 (fig.), 170. 

 Support of plant, 73, 170. 

 Susceptibility to disease, 253, 384. 

 Suspensor of, Angiosperms, 368, 



369 (fig.), 370, 371 (fig.) ; 



Conifers, 350, 351 (fig.) ; 

 Cycads, 326, 327 (fig.) ; Sela- 

 ginella, 319, 320 (fig.). 



Sweet Corn (Zea), 45. 



Sweet Flag (Acorus calamus), stem- 

 structure of, 85 (fig.), 86. 



Sweet Pea (Lathyrus), hybrids of, 

 388. 



Swietenia mahogoni, 130. 



Sycamore (Acer pseudoplatanus), 

 epidermis of, 95 ; leaf -fall in, 

 142 (fig.) ; secondary wood of, 

 121, 128 (fig.). 



Symbiosis, 257-60. 



Sympetalae, 357, 367, 408. 



Synapsis, 306, 307 (fig.). 



Syncarpous ovary, 355, 356. 



Synergidae, 357 (fig.), 366, 367 (fig.). 



Tesniophyllum, 74. 



Tamus communis, 112 ; stem- 

 structure of, 86, 87 (fig.). 



Tannic acid and alkaloids, 61. 



Tannin, 60, 64, 125, 137, 155 

 reactions of, 12, 13, 49, 60. 



Tannin-sacs, 130, 151, 166. 



Tanning, 39, 60. 



Tap-root, 71. 



