392 



INDEX 



Virginia creeper, see also Ampelopsis, 



70 

 Vitis, 83, 185, 234, 244 

 V. labrusca, 83 

 V. trifolia, 234 

 Vittaria, 113,230,290 

 Vosges, Mts., 46 



Wallace, A. W., 205, 234 



Wallace's line, 235, 240 



Walnut, see also Juglans, 53, 85, 92, 



144, 266 

 Waratah, see Telopea 

 Warczewiczia coccinea, 296 

 Washington, D. C, 126 

 Washington, Mt., 84 

 Washington, State of, 85, 123 

 Washingtonia, 152, 153, 363 

 W. filifera, 153, Fig. 47 

 Water, agent in distribution, 16 

 Watermelon, see Citrullus 

 Watsonia, 308, 354 

 Wattle, see Acacia 

 Waxberry, see Myrica 

 Weber's line, 235 

 Weeds, 20, 21, 354, 357 

 Weigela, 83 

 Weinmannia, 198, 346, 363, 365, 



366 

 W. sylvicola, 339 

 W. trichosperma, 365 

 Wellington, New Zealand, 22, 341 

 Welwitschia mirabilis, 166, 167, PI. 



XIII 

 West Australia, 329-333, 351 



Wild flowers, 331 

 Western Europe, 46 

 Western Ghats, India, 186 

 West Indies, 101, 263 

 Westland, New Zealand, 336, 346, 



347, 350 

 Wettinia, 284 

 White cedar, see Thuya, Chamaecy- 



paris 

 White Mountains, 31 

 White oak, see Quercus alba, Q. lobata 



White pine, see Pinus Strobus, P. 



monticola 

 Whitlow grass, see Draba 

 Whitney, Mt., 135 

 Willis, Bailey, 370 

 Willow, see also Salix, 26, 32, 35, 



41, 45, 47, 108, 279, 318 

 Willow-herb, see Epilobium 

 Wine palm, see also Caryota, Raphia, 



160, 163, 168, 202 

 Wintergreen, see Gaultheria 

 Wisconsin, 85, 91, 93 

 Wistaria, 81 

 Witch hazel, see also Hamamelis, 



76, 98 

 Wonder-boom, see Ficus cordata 

 Wormia, 199, 217 

 W. ferruginea, 199 

 Wormwood, see Artemisia 

 Wyethia, 149 

 Wyoming, 116 



Xanthium, 354 

 Xanthorrhoea, 331, 333 

 X. Preissii, 333, PI. XLIV 

 Xerophytes, 264, 265, 266, 300 

 Xyridaceae, 290 



Yam, see Dioscorea 



Yangtse-Kiang River, 74, 79, PI. V 



Yellowstone Park, 116 



Yosemite Valley, 146, 147 



York Peninsula, Australia, 243, 246, 



325 

 Yucca, 106, 108, 154, 156, 265, Fig. 48 

 Yukon Territory, 40 



Zamia, 9, 109 

 Z. Floridana, 109 

 Zambesi River, 174 

 Zingiber, Zingiberaceae, see also Gin- 

 ger, 162, 208, 278 

 Zizania aquatica, 94 

 Zizyphus, 171, 179 

 Zones of vegetation, Mt. Orizaba, 269 

 Zygadenus, 143 



