INDEX| 
(For the convenience of teachers and other older readers, technical terms avoided in the 
body of the book are given in the index.) 
A 
Above-ground roots, 106-III. 
Acorn, seed of oak, 68. 
seed leaves of, 87. 
a fruit, 95. 
Adder’s tongue, yellow, 203, 216, 2T9. 
Air, composition of, 151. 
Air roots, 107. 
Alder, black, 49. 
Alder, speckled, 173. 
Alder, swamp, 173. 
Alder tassels, 207-209. 
Almond seed, a food, gI. 
Amphibious knotweed, 119, 123. 
Anemone, 203, 209, 216, 219. 
Animals and plants, difference be- 
tween, 154, 155. 
Anthers, see “dust boxes.” 
Apple, study of, II-Ig. 
seed of, 20, 24, 27, 29, 93. 
signs of ripeness of, 28, 29. 
Apple blossom, parts of, 14, 15, 32. 
buds of, 129. 
Ash, seed of, 62. 
Aster puffball, 59. 
Asters, 251, 252, 254. 
B 
Baneberry, red, 49. 
Baneberry, white, 49. 
Barberry, 49. 
stamens of, 193. 
Bark, defined, 120, 121. 
Basswood, leaves of, 165. 
Bean, planting of seed of, 80. 
seed leaves of, 81. 
development of seed, 81-83, 96-98. 
root of, 99. 
stem of, II5, 117. 
Bee, a'pollen carrier, 17, 18, 189, 207, 
220, 227, 233. 
Beech tree, 215. 
Beet, root of, 102, 103. 
Birch tassels, 208, 209. 
Birds, as seed transporters, 72, 73. 
Bittersweet berries, 42. 
| Black alder, 49. 
Blackberry, development of, 235-237. 
Bladderwort, 179, 180. 
Bloodroot, 106. 
Bloom, 173. 
Blue daisy, 251. 
Blue flag, classified, 88. 
Bristles, 175. 
Bryophyllum, 132, 133, 150. 
Buckwheat seed, a food, 91. 
Buds, 125-133. 
protection of, 126, 127, 131. 
position of, 128, 132. 
unprotected, 130. 
on leaves, 132, 133. 
Bulb, described, 105, 106. 
an underground stem, 216, 217. 
Bulblets, defined, 132. 
Burdock burr, 35, 36, 52, 53, 95- 
Burrs, description of, 52. 
use of, to plant, 53. 
as seed cases, 67, 68. 
Buttercup, pistils and stamens of, 201 
Buttonwood buds, 130, 131. 
C 
Cabbage leaves, 173. 
Cabbage, skunk, 204. 
Caladium, 163, 164. 
Calyx (cup), described, 15. 
position of, 18. 
function of, 188. 
defined, 189. 
Carrion vine, 230, 231. 
Carrot root, 102. 
Carrot, wild, 246, 247. 
Castor-oil plant, seed of, 72. 
Cells, 139-143. 
description of, 139. 
passage of moisture through, 147, 
148. 
water supply of, 149. 
functions of, 152. 
loosening leafstalk, 185. 
Cherry blossom, parts of, 37, 38, 188, 
189, 218. 
development into cherry, 37, 38, 189. 
267 
