INDEX. 



Abies, 3. 

 Abronia, 19. 

 Acer, 55. 

 Aceracese, 55. 

 Achillea, 101. 

 Actaea, 24. 

 Agoseris, 96. 

 Allionia, 19. 

 Allium, 7. 

 Alnus, 12. 

 Alsine, 20. 

 Alyssum, 32. 

 Amelanchier, 46. 

 Amsinckia, 80. 

 Anacardiacea:, 54. 

 Androsace, 70. 

 Anogra, 63. 

 Antennaria, 97. 

 Aphyllon, 88. 

 Aquilegia, 24. 

 Arabis, 33. 

 Arenaria, 21. 

 Argemone, 27. 

 Arnica, 99. 

 Asclepediacese, 71. 

 Asclepediadora, 72. 

 Asclepias, 72. 

 Asperugo, 79. 

 Aster, 102. 

 Astragalus, 49. 

 Atragene, 26. 

 Atriplex, 18. 

 Aulospermum, 68. 

 Balsamorrhiza, 99. 

 Batrachium, 26. 

 Berberidaceae, 27. 

 Berberis, 27. 

 Betula, 12. 

 Betulacese, 12. 

 Bicuculla, 28. 

 Bigelovia, 98. 

 Bignoniaceae, 89. 

 Blepharipappus, 101. 

 Boraginaceae, 77. 



Bossekia, 43. 

 Brassica, 37. 

 Brodiaea, 6. 

 Brunella, 82. 

 Bursa, 32. 

 Cactaceae, 61. 

 Calochortus, 6. 

 Camassia, 8. 

 Camelina, 34. 

 Campanulaceae, 5)8. 

 Capnoides, 28. 

 Capnorea, 76. 

 Caprifoliacese, 91. 

 Capsella, 32. 

 Cardamine, 34. 

 Carduus, 98. 

 Caryophyllacese, .19. 

 Castilleja, 87. 

 Catalpa, 89. 

 Caulanthus, 36. 

 Celastraceae, 55. 

 Celtis, 15. 

 Ceanothus, 57. 

 Cerastium, 21. 

 Cercocarpus, 42. 

 Chaenactis, 99. 

 Cheiranthus, 36. 

 Chenopodiacese, 37. 

 Chrysopsis, 100. 

 Chrysothamnus, 98. 

 Cirsium, 98. 

 Clarkia, 64. 

 Claytonia, 22. 

 Clematis, 26. 

 Cogswellia, 67. 

 Collinsia, 86. 

 Collomia, 74. 

 Comandra, 15. 

 Compositse, 94. 

 Coniferae, 1. 

 Conringia, 37. 

 Convolvulacese, 72. 

 Convolvulus, 73. 

 Corallorhiza, 9. 



