94 



KEY TO THE SPECIES 



Trifolium, 43. 

 Twin-flower, 79. 

 Typha, 7. 

 Typliacese, 7. 



Ulmaceffi, 17. 

 UmbellifersB, 55. 



Vaccaria, 23. 

 Vacciniacese, 58, 

 Vaccinium, 58. 

 Vagnera, 11. 

 Valeriana, 80. 

 Valerianacese, 80. 

 Valerian Family, 80. 

 Venus' Looking-glass, 81. 

 Verbascum, 74. 

 Verbena, 68. 

 VerbenacesB, 68. 

 Veronica, 74. 

 Vervain, 68. 

 Vervain Family, 68. 

 Vetch, 45. 

 Viburnum, 79. 

 Vicia, 45. 

 Vine Family, 48. 

 Viola, 49. 

 Violacese, 49. 

 Violet, 49. 

 Virgin's Bower, 35. 



Virginia Creeper, 48. 

 Vitacese, 48. 

 Vitis, 48. 



Wall Flower, 31. 

 Washingtonia, 56. 

 Water-crowfoot^56. 

 Waterleat, 65. 

 Waterleaf Family, 65. 

 Water Plantain, 8. 

 Water-plantain Family, 7. 

 Western Lion's Heart, 71. 

 Western Star, 50. 

 White Mountain Lily, 9. 

 Whitlow-grass, 80. 

 Whortleberry Family, 58. 

 Wild Lettuce, 83. 

 Willow, 14. 

 Willow Family, 14. 

 Willow Herb, 63. 

 Wintergreen, ■ 58. 

 Woodbine, 48. 

 Wood-sorrel, 47. 

 Woundwort, 71. 



Yarrow, 65. 

 Yucca, 11. 



Zizia, 56. 

 Zygadenus, 8. 



(3) 



THE END 



