3 8 



\\ BEDS OI I ARM I. AND 



Switzerland, 108, 191. 



Swollen internodes, weeds with, 90. 



stems, 38. 

 Symptomatic weeds, xzo 1 134. 



TAINTING of milk, 112, 113, 114, 115. 

 Taraxacum vulgare. See Dandelion. 

 Tares, 50, 114. 

 Tarred paper, eradication of weeds by, 



66. 



Tasmania, weeds, 4. 

 Tea substitutes, 189, 194, 201. 

 Temporary grass, 162-74. 

 Tendril, 90. 



" Testing of Seeds " Order, 44. 

 Thalecress, 129, 208. 

 Thatch, 190, 198. 



Thistle, 18, 36, 43, 45, 47, 48, 61, 64, 

 65, 67, 68, 89, 127, 176, 179. 



creeping, 4, 9, 16, 23, 24 (fig.), 30 



(fig.), 70, 82 (fig.), 95, 126, 127, 

 156, 162, 163, 164, 183, 186, 211. 



marsh, 66, 86, 211. 



milk, 4. 



musk, 150, 156, 167. See also 



Cardtius nutans. 



spear, 86, 128, 167, 211. 



stemless, 65, 211. 

 Thlaspi arvcnse, 17, 115, 224. 

 Threshing machines, 15, 45. 

 Thyme, 94, 178. 



Timothy, 75. 



Toadflax, 21, 31, 146, 147, 153, 157, 



162, 163, 195, 215. 

 round-leaved, 147, 148, 150, 157. 

 Toadstools, 182. 

 Tomato, 97. 

 Tor grass, 69. 

 Tormentil, 104, 198, 220. 

 Tragopogon porrifolius, 73. 

 T. pratensis. See Goat's- beard. 

 Trailing weeds, 87. 

 Transport of impure seed, 10. 



weeds distributed by, 10. 

 Transvaal, weeds, 43. 

 Trefoil, 166. 



bird's-foot. See Lotus corniculatus. 

 Trifolium, 75. 



T. angulatum, 44. 

 T. arvense, 97. 

 T. (lithium, 44. 

 T.Jiliformc, 97. 

 T. parviflorum, 44. 

 T. pratensf, 97, 119. 

 T. procumbent, 44. 

 T. repent, 97. 

 T. striatum, 97. 

 T. strictttm, 97. 

 T. tubterraneum, 97. 



Triticum repent Agropyron ;< 



225. 



Tuber, 38. 

 Tufted weeds, 87. 

 Turnip crop, 51. 



Tussilagofarfara. See Coltsfoot. 

 Twitch^ 47, 48, 49, 127. 



UBIQUITOUS weeds, 123, 125. 

 Ulex cur opa us. See Gorse. 

 Underground stems, 9, 31, 46, 86, 88, 



104, in. 



United States, 4, 114. 

 Urtica dioica, 129, 179, 188, 194, 203, 



225. See Stinging Nettle. 

 U. urens, 179. See a!so Small Nettle. 



Vaccininm uliginosum, 195. 



Valerian, common, 73. 



Valeriana officinalis, 73. 



V. den tat a, 73. 



V. olitoria, 146, 147, 158, 225. 



Vegetative reproduction, 18, 31, 86. 



Verbascum thapsus, 73. 



Vernal-grass, 182. 



Veronica agrestis. See Field Speed- 

 well. 



V. arvensis. See Wall Speedwell. 



V. chanitedrys. See Germander Speed- 

 well. 



V. hederce folia. See Ivy-leaved Speed- 

 well. 



V. serpyllifolia. See Thyme-leaved 

 Speedwell. 



V. tournefortii, 81. See also Large 

 Field Speedwell. 



Vetch, common, 73. 



horse-shoe, 17. 



kidney, 187, 208. 



narrow- leaved, 21 (fig.), 226. 



tufted, 17, 18, 226. 



wild, ii, 20, 90. See also Vicia 



septum. 



Vetches, 50, 53, 58. 

 Vetchling, 58. 



Vicia, 20. See also Wild Vetch. 

 V. angustifolia, 21 (fig.), 226. 

 V. cracca, 17, 18, 226. 

 V. hirsuta, 226. 

 V. sativa, 73, 226. 

 V. sepium, 226. 

 V. tetrasperma, 226. 

 Viola tricolor. See Field Pansy. 

 Viper's Bugloss, 104, 212. 



WATER culture experiments, 5. 

 Watercress, n, 178. 

 Water dropwort, hemlock, 73. 

 Water grass, 47. See also Agrostis. 



logging, 66, 1 18, 133, 177. 



