INDEX 



437 



Spleenwort, Black (Asplen um), 



344- 

 Spongy tissue, 66, (Fig. 29). 

 Spores, 158, 221. 

 Sporophyll, 158. 

 Spruce, 353. 

 Spur, bifoliar, 118. 

 Spurge, Petty, 379. 



Sea, 385. 



Sun, 379. 

 Spurry, Corn, 239, 378. 



Sea, 239. 

 Squill, 136. 

 Stamen, 16, 158. 

 Stamen-trough, 188. 

 Staminode, 186, 199, 200. 

 Standard, 188, (Fig. 131). 

 Star of Bethlehem, 266. 

 Starch, conditions necessary for 

 formation of, 80-5. 



conversion into sugar, 86. 



formed from sugar, 87. 



digestion of, 856. 



potato-, 87 (Fig. 53). 

 Starch-print, 81 (Fig. 51). 

 Starwort, 343. 



Bog, 370. 

 Statice, 383. 

 Stellaria, 239, 343, 378. 

 Stem, 12. 



annual rings in, 71, (Fig. 39). 



bast of, 69. 



cambium of, 69. 



cortex of, 68. 



curvature of, 74-7. 



cuticle of, 67. 



effect of gravity on, 74, (Figs. 



43-4)- 



ligature on, 90, (Fig. 54). 



light on, 76-7. 

 endodermis of, 70, (Fig. 34). 

 epidermis of, 67-8. 

 force of growing, 76. 

 growing region of, 47, (Fig. 



22). 

 path of sap in, 89, 90. 

 pith of, 69. 



secondary growth, 70-1. 

 structure of, 67-7 1 . 

 supporting tissues of, 68. 

 underground, 125-40. 

 vascular bundles of, 68-71, 

 (Figs. 31-9). 



Stem, wood of, 69-70. 



woody, 70-1, (Figs. 38, 39). 

 Stigma, 17, (Fig. 3), 159. 

 Stimulus, effect of, on root, 38- 



43- 

 on shoot, 74-7. 

 Stipulate leaves, 116. 

 Stipules, 29, 1 16. 



as bud-scales, 116. 

 Stitchwort, 239-42. 



Bog, 239, 343, 370, 376. 

 Marsh, 348. 

 Stock, Garden, 11-18, (Figs. 1-4), 

 171, 174,192,204,206, 210, 

 216, 231-3, 238. 

 Stomata, 66, 67, (Fig. 29). 

 opening and closing of, 98. 

 protection of, 95-6. 

 sunken, 398. 

 water, 98. 

 Stonecrop, 344. 



Biting, 389. 

 Stoneworts (Chara), 372. 

 Stool-shoots, 1 2 1-2. 

 Stork' s-bill (see Crane's-bill), 386. 

 Strand-plants, 387. 

 Strawberry, 141, (Fig. 88), 168, 

 (Fig. 113), 171, 174, 193, 

 210, 212, (Fig. 145), 219, 

 225, 242-4, 354. 

 Style, 17, 159. 

 Suaeda, 383, 388. 

 Succulent fruits, 217-19 (Figs. 



152-5)- 

 Succulent or fleshy plants, 344, 



398. 

 Suckers, 60-2, (Fig. 27), 280,281. 

 of parasites, 358, 361, (Figs. 



229-31). 

 Sucking-organ, 139. 

 Sugar, conversion into starch, 



84, 85. 

 grape, 85, 86, 131. 

 Sundew, 362, (Figs. 232, 233), 397. 

 Sunflower, 23, (Fig. 8), 27, 28, 



47, (Fig. 22), 68, (Fig. 37), 



98, 262. 

 Sun-position, 147-8, (Figs. 95, 



96). 

 Survey of a pasture, 369. 



of a wood, 346-9, (Fig. 223). 

 Swede, 238. 

 Sweet Gale, 353, 397. 



