Rose family, 31, 32, 36, 40, 235. Rose hip, 33, 34. Rose mallow, 258. Rose of Jericho, pod of, 71. Rose, wild, 32. S Saint John’s-wort, pistil of, 200. Saxifrage, pistil of, 200. Sea pinks, 228, 258. Seaweed, 258. Seed sailboats (appendages), 56-60, 207. Seedbox (ovary), described, 15, 18. function of, 188. in berries, 236-239. Seed coat, 80-84, 86, 113. Seed leaf, plants with one (monocotyledons), 88. of corn, 88. Seed leaves (cotyledons), description of, 78, 81-90. plants with two (dicotyledons), 85-87. of acorn, 87. of pea, 87. of walnut, 87, 88. of chestnut, 87, 88. plants with many (polycotyledons), 88, 89. development of, 113. number of, 120, 121, 165. Seeds, growth of, in the apple, 18-20. the object of the plant’s life, 24. importance of, to world, 27. protection of, 28, 29. reason for scattering of, 50, 51. transportation of, 52-64, 69-73. winged, 61 shooting, 63-67. nourishment of, 75-77. planting of, 79-87, 95, 96. germination of, 80-89, 92, 198, 199. as food, 89-91. as storehouses, 90, 91. Shin leaf flower, stamen of, 193. Shooting seeds, 64-67. Silver maple, 210. Skunk cabbage, description of, 204. Snowberry, stem of, 117. Snowdrop, 216. Solomon’s seal, fruit of, 48. underground stem of, 105, 216. scars of, 105, 106. Solomon’s seal, false, 48. Speckled alder, 173. Spice bush buds, 129. Spikenard, 49. Spring beauty, 203, 216. Spur, 226. Squash, seed of, 80, 85, 86, 90. Squirting cucumber, 67. Stamens (pins with dust boxes), description of, 14. function of, 188. defined, 190. varieties of, 193-195. position of, 248. Steeple bush, leaves of, 172. Stems, development of, 81, 112, 113. of bean plant, 96. underground, 104-106, 150, 216-219. varieties of, 104, 112-120. use of, to plant, 113-117. habits of, 117-119. hairy, 118, 119. sticky, 118. parts of, 120. as water carriers, 146-148, 163. Stick-tight, 55. Stone or pit of fruits, 37. Strap flowers, 247-255. Strawberry, stem of, 117. pistil of, 201. development of, 233, 234. description of, 238. Sugar maple, seeds of, 92. blossom of, 210. Sumac, 43. Sun (Sunbeam), factor in plant life, 151-161. Sundew, leaf of, 182, 183. pistil of, 200. Sunflower, plan of, 255. Sunflower plant, perspiration of, 149. Swamp alder, 173. Swamp maple, 210. Sweet potato root, 102. T Thistle, 56, 59, 118, 174, 254, 255. Thistle down, 56. Thorn, 49. use of, to plant, 117, 118. Thorn apple, 199. Tick trefoil pod, 54, 55. Ticks, transportation of, 55. Tiger lily buds, 132. Touch-me-not pod, 65-67. Trailing arbutus, a spring flower, 203, 209. plan of, 217, 218. Transportation of pollen, 18, 207, 211, 213, 226, 227, 229-231, 233, 250.