1 8o 



INDEX. 



T. 



Tail, 124. 



Tangential, 30. 



Tapeworm, 4. 



Taproot (see Root). 



Tare, 6. 



Teasel, 112, 157. 



Teeth, 58, 59, 86. 89, 90, 137, 138. 



Telegraph plant, 73. 



Ten, 93, 95, 103. 



Tendril, 25-26, 27, 45, 61, 62, 64 ; t. climbers, 

 25-26, 43, 61. 



Tension, 40, 127. 



Tentacle, 61, 73. 



Terminal, 147. 



Ternate, 61. 



Ternately-parted, 63. 



Tertiary, leaflet, 61. 



Test-tube, 69. 



Tetradynamous, 94, 123, 155. 



Texture ; of corolla, 91 ; of lamina, 62, 147 ; 

 of root, 146 ; of scale-leaf, 147 ; of se- 

 pal, 86; of sheath, 147; of stem, 41, 

 146 ; of stipule, 64, 147 ; of wood, 38. 



Thalamiflorae, 153, 1 <: 5-156. 



Thickening (see Growth in thickness). 



Thickness ; of root, 13, 14 ; of stem, 24. 



Thirteen-ranked, 51. 



Thistle, 46, 78, 89, 95, in, 122, 147. 



Thorn, 27, 28, 41, 67, 111. 



Thorn-apple, 157. 



Three, 83, 86, 88, 93, 94, 98, 100, 104, 117, 

 126, 138, 152. 



Three-sided (see Triangular). 



Three-ranked, 50. 



Three-rayed, 80. 



Thrift, 106. 



Throat, 89. 



Thyme, 129, 157. 



Thyrsus, 80. 



Timber, 38. 



Tissues, 8 ; classification of, 17 ; conduct- 

 ing t., 107, 114; formative t., 17, 32 

 (see also Cambium and Growing point) ; 

 fundamental (see Ground tissue); 

 ground t., 14, 17, 28, 29, 30, 31, 36, 40, 

 43> 64, 65, 66, 98, 107 ; mechanical or 

 supporting t., 41; permanent t., 17 ; 

 vascular t., 16, 17, 18, 19, 28, 29, 30, 36, 

 41, 66, 91, 98, 107, in, 152. 



Toadflax, 90, 122, 128, 157. 



Tobacco plane, 157. 



Tomato, 157. 



Tomentose, 28. 



Torus (see Floral receptacle). 



Trachese, 35, 43. 



Tracheide, 35, 41, 66. 



Trailing, 54. 



Transmitted light, 159. 



Transpiration, 69-71, 160. [tropism, 73. 



Transverse, 128 ; geotropism, 73 ; helio- 



Tree, 23, 25, 37, 38. 41, 46, 49. 54, 64, 68, 

 116, 149, 155. 



Trefoil (see Bird's-foot trefoil). 



Triadelphous, 95. 



Triangular, 23, 52. 



Trichomes (see Hairs). 



Trifurcation, 61. 



Trimorphic, 125. 



Tripinnate, 61. 



Tritemate, 61. 



Tropical, 88. 



True fruits, 135, 136-139. 

 Trunk, 23, 25, 38, 42, 49. 

 Tube, 84, 85, 87, 89, 95, 127 ; of microscope, 



158, 159- 

 Tuber, 26, 44, 160 ; root tubers, 14, 19. 

 Tuberous, 146, 154. 

 Tubular, 55, 84, 85, 89, 147. 

 Tulip, 21, 75, 76, 86, 98, 104, 120, 138. 

 Tulip-tree, 149. 

 Turgid, 9. 



Turgidity, 9, 32, 69, 70. 

 Turnip, 13, 14, 155. 

 Turnip-shaped, 146. 

 Twig, 40, 46, 54. 

 Twining, 25, 44. 

 Twisted, 55, 89, 154. 

 Two, 61, 84, 86, 87, 88, 93, 94, 96, 97, 98, 



100, 104, 106, 124, 136, 137, 138. 

 Two-ranked, 50, 55. 

 Two-rayed, 79. 



U. 



Umbel, 78, 79, 156. 



Umbelliferaj, 79, 119, 156. 



Umbrella, 67, 78. 



Unbidden guests, m-113, 119, 129. 



Undershrubs, 23, 156. 



Undifferentiated, 55. 



Uniaxial, 75. 



Unicellular, 8, 28, 72. 



Unilocular, 104, 105, 106, 139. 



Union ; of foliage-leaf margin, 55; of lobes, 



58 (see Adhesion and Cohesion). 

 Unisexual, 98, 99, 115, 116, 118, 121, 154, 



155- 

 Units of structure, 5. 

 Unsym metrical, 55. 

 Urceolate, 89, 123. 

 Urn-shaped, 89. 

 Urticacea?, 154. 

 Utricularia, 62. 



V. 



Vacuole, 8, 32, 72. 



Vacnolized, 32. 



Vallisncria, 71, 115. 



Valvate, 84, 150. 



Valve, 62, 137. 



Valvular, 97. 



Vapour, 69. 



Variegated, 62. 



Vascular, 16. 



Vascular cylinder (of root), 14, 16. 



Vegetable marrow, 25, 28, 36, 95, 101. 



Vegetative, 17, 71, 74. 



Veinlet, 56. 



Veins, 55-57, 63, 65, 91, 104. 



Venation, 55-57, 147- 



Ventral, 103, 107. 



Ventral suture, 102, 104, 106, 107, 137. 



Venus' fly-trap, 61, 73. 



Verbena, 93. 



Vernation (see Prefoliation). 



Versatile, 96, 117, 118. 



Vertical, 54, 55, 68, 70, 128, 146, 147. 



Verticillaster, 157, 180. 



Vessel, 16, 33-34, 41 {see Tissue, vascular) 



annular v., 34, 36; pitted v., 34: 



spiral v., 34, 36. 

 Vetch, 61, 113, 140, 156. 



