180 
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- 
Tenaril, Bese, 271 45, 61, 62, 64; t. climbers, 
25-26, 43, 
Tension, 40, ie 
Tentacle, 61, 73. 
Terminal, 147. 
Ternate, 61. 
Ternately-parted, 63. 
Tertiary, leaflet, 61. 
Test-tube, 69. 
Tetradynamous, g4, 123, 1 
Texture ; of corolla, 91 ; of mina 62, 1473 
of root, 146; of scale-leaf, 147; of se- 
pal, 865 of sheath, 1473 ‘of stem, 41, 
1463 of stipule, 64, 147; of wood, 38. 
Thalamiflore, 153, 155-156. 
Thickening (see Growth in thickness). 
Thickness ; of root, 13, 145 of stem, 24. 
Thirteen-ranked, 51. 
Thistle, 46, 78, 89, 95, 111, 122, 142. 
Thorn, 27, 28, 41, 67, 111. 
Thorn-apple, 157. 
Three, 83, 86, 88, 93, 94, 98, 100, 104, 117, 
126, 138, 152. 
Three-sided fe 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, III, 152. 
Toadflax, 90, 122, 128, 157. 
Tobacco plant, 157. 
Tomato, 157. 
Tomentose, 28. 
Torus (see Floral receptacle). 
Tracheide, 35, 41, 66. 
Trailing, 54. 
Transmitted light, 159. 
Transpiration, 69-71, 160. 
Transverse, 128; geotropism, 73; helio- 
tropism, 73. 
Tree, poe 25, es 38, 41, 46, 49, 54, 64, 68, 
Il I4 
Trefoil fey Bird ’s-foot trefoil). 
Triadelphous, 95. 
Triangular, 23, 52. 
Trichomes (see Hairs). 
Trifurcation, 61. 
Trimorphic, 125. 
Tripinnate, 61. 
Triternate, 61. 
Tropical, 88. 
| 
INDEX. 
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, 1603 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, 6x, 84, 86, 87, 88, 93, 94, 96; 97; 98 
I00, 104, 106, 124, 136, 137, 138- 
Two-ranked, 50, 55. 
Two-rayed, 79. 
U. 
UMBEL, 78, 79, 156- 
Umbelliferze, 79, 119, 156. 
Umbrella, 67, 78. 
Unbidden guests, 111-113, 19, 129. 
Undershrubs, 23, 156. 
Undifferentiated, 55. 
Uniaxial, 75. 
Unicellular, 8, 28, 72. 
Unilocular, 104, 105, 106, 139. 
Union ; of foliage- leaf margin, 553 of lobes, 
58 (see Adhesion and Cohesion). 
Unisexual, 98, 99, 115, 116, 118, 121, 154, 
I55- 
Units of structure, 5. 
Unsymmetrical, 55. 
Urceolate, 89, 123. 
Urn-shaped, 89. 
Urticacez, 154. 
Utricularia, 62. 
V. 
VACUOLFE, 8, 32, 72. 
Vacuolized, 32. 
Vallisneria, 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, 9% 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. 
