90 



KEY TO THE SPECIES 



Capnoides, 27. 

 Capparidaceae, 31. 

 Capritoliaceae, 78. 

 Cardamine, 29. 

 Carrot Family, 55. 

 Caryophyllacese, 21. 

 Castilleja, 77. 

 Catchfly, 22. 

 Cat-tail, 7. 

 Cat-tail Family, 7. 

 Celtis, 17. 

 Cfrastium, 22. 

 Cercocarpus, 39. 

 Cereus, 51. 

 Chsenactis. 85. 

 Ohamsenerion, 53. 

 Cheiranthus, 31. 

 Chickweed, 22. 

 Chicory Family, 81. 

 Chimaphila, 57. 

 Choke-cherry, 40. 

 Chylisma, 54. 

 CichoriaceEe, 81. 

 Cinquefoil, 37. 

 Clammy Weed, 31. 

 Claytonia, 21. 

 Clematis, 25. 

 Cleome, 31. 

 Clover, 42. 

 Cockle, 21, 23. 

 Collinsia, 76. 

 Collomia, 65. 

 Coltsfoot, 86. 

 Columbine, 23. 

 Columbo, 61. 

 Comandra, 17. 

 CommelinaceEe, 8. " 

 Compositse, 83. 

 Composite Family, 83. 

 Cone-flower, 86. 

 Convallariacese, 11. 

 Convolvulaceae, 62. 

 Convolvulus, 63. 

 Cornacese, 57. 

 Cornel, 57. 

 Cornus, 57. 

 Corylus, 16. 

 Cottonwood, 15. 

 Cow Herb, 22. 

 Cranberry Tree, 79. 

 Crassulaceae. 33. 

 Cratsegm, 39. 



Crepis, 82. 

 Cress, 29. 



Crowfoot Family, 83. 

 Cruciferas, 28. 

 Currant, 34. 

 Cypripedium, 13. 

 Cyrtorhyncha, 26. 



Dandelion, 82. 

 Dasiphora, 36. 

 Datura, 73. 

 Delphinium, 24. 

 Disporum, 13. 

 Dock, 19. 

 Dodecatheon, 60. 

 Dogbane, 61. 

 Dogbane Family, 61. 

 Dog-tooth Violet, 10. 

 Dogwood, 57. 

 Dogwood Family, 57. 

 Draba, 30. 

 Draooeephalum, 70. 

 Drupacege, 40 

 Drymooallis, 38. 



Echinocactus, 51; 

 Echinocereus, 51. 

 Edwina, 33. 

 Elder, 79. 

 Eleaginacese, 52. 

 Elephantella, 78. 

 Elm Family, 17. 

 Enomegra, 27. 

 Epilobium, 53. 

 Ericaceae, 58. 

 Erigeron, 84. 

 Eriogonum, 18. 

 Erythronium, 10. 

 Euphorbia, 46. 

 Euphorbiaceae, 46. 

 Evening Primrose, 53, 64. 

 Evening Primrose Family, 52. 

 Evolvulus, 63. 



Fagaceas, 16. 



False Hemlock-spruce, 6. 



False Mallow, 49. 



False Solomon's Seal, 11. 



Fendlera, 33. 



Figwort, 76. 



Figwort Family, 73. 



Flag, 12. 



