INDEX 



Transpiration Current, 37, 42, 43, 



75-77, s 18. 

 Tree Mallow, s 65. 

 Tree Poppy, 112, 108, s 66, 67. 

 Trees, 70-71, 100-109, s 57-62. 

 Trees and Rain, 98. 

 Trees in Autumn, s 23, 27-28. 

 Tree Tobacco, 211, s 73, 127. 

 Trichostema, 207, Fig. 15, p. 49 



Fig. 16, p. 50, s 26, 86. See also 



Blue Curls. 

 Trifolium, s 78, 79. 

 Tropseolum, s 81, 82. 

 Tropical Vegetation, 59, 60, 83, 



84, 168, 170, 174, 176, 177, 179, 



s 45, 46, 109, in, 112, 115. 

 Tropidocarpum. s 125. 

 Tubercles on Roots, s 30. 

 Tule, 162, 170. 

 Tulip, 164, s 101. 

 Tumble-Weed, 202, s no, 126. 

 Tuna Cactus, 189-191, Fig. 67, p. 



190, s 117. 

 Turkey-Weed, 46, 47, 177, 197, 



201, 207, Fig. 14, p. 47, s 22, 25, 



120. See also Trichostema. 

 Turnip, 175, 176, 200, s 68. 



Ulva, s 8. 



Umbelliferae, 155-158, 178, 207, 



Fig. 22, p. 65, Fig. 60, p. 158, s 



39, 75, 94, 95, 123. 

 Umbellularia, sin. See also Bay. 

 Underground Stem , see Storehouse. 

 Upas, s 109. 



Varnish on Leaves, s 26. 

 Venus' Fly-Trap, s in. 

 Venus- Hair Fern, s 46. 

 Verbascum, s 85. 

 Verbena, 174, s 114. 

 Verbenacese, 383, 114. 



Veronica, s 85. 



Vertical Leaves, 43, s 23. 



Vetches, s 79. 



Vicia, s 79. 



Victoria Regia, sin. 



Violet (Viola), 93-95, 97, 175, 198, 



Fi^ 34, p. 94, 354, in. 

 Virginia Creeper, 177. 

 Viscid (Sticky), s 26. 



Wall- Barley, 204, 205. 

 Wall-Flower, Western, s 68. 

 Walnut, 31, 105, 172, Fig. 38, p. 



103, s 13, 59, co, 108. 

 Wandering Jew, s 104. 

 Washingtonia, s 104. 

 Wasps, 107, s 63. 85. 

 Water Cress, 175, 207, s 21, 68, 124. 

 Water Fern, s 47. 

 Water Fennel, s 6. 

 Water Hyacinth, 207. 

 Water Lily, 176, s in. 

 Water-Net, 17-21, Fig. i, p. 18, s 3. 

 Water, Uses to Plants, 39, 42, s 20. 



See also Transpiration Current. 

 Wax Palm, s 105. 

 Wax Plant, s 114. 

 Weaving Plants, s 41. 

 Weeds, 174, 199, 200-211, s 21, 27, 



123-127. 



West Indies, 174. 

 Wheat, 38, 162, 168, Fig. 9, p. 23, s 



14, 106. 



Whispering Bells, 371. 

 White Forget-me-not, 121, Fig. 



46, p. 120. 

 White Poppies, 112. 

 White Sage, 146-150. 

 Wild Cherry, Wild Grape, etc., see 



Cherry, Grape, etc. 

 Willow. 40, 71, 100-104, 172, Fig. 



37, p. 101, 841, 59, 108. 



