27 



matricarioides, 11: 99. 

 Oneidense, 11: 99. 16: 103. 

 tenuifolium, 11: 99. 

 occidentale, 11: 81. 12: 97. 

 Onondagense, 11: 99. 

 pumicola, 13: 117. 

 ramosum, 18: 33, 86. 20: 48. 

 silaifolium, 12: *4. 

 simplex, 11: 81, 99. 12: 4. 13: 

 36, 117. 14: 66, 84, 98. 15: 

 17. 16: 103. 17: 69. 18: 87. 

 19: *ll. 20: 14. 

 fallax, 13: 75. 

 tenebrosum. 11: 99. 13: 36. 14: 



49. 17: 69. 

 ternatum, 11 : 72 . 



dissectum, 15: 49 . 

 ternatum obliquum, 11: L16. 12: 

 65. 13: lis. 14: 66. 

 Coulteri, 11: 116. 13: 118. 

 dissectum, 11: 116. 13: 118. 

 intermedium, 11: 1 16. 13: 118. 

 matricariae, 11: 116. 13: 118. 

 occidentale, 11: 116. 

 Oneidense, 11: 116. 13: 118. 

 robustum, 11: 116. 13: 118. 

 silaifolium, 11: L16. 13: 118. 

 tenuifolium, 11: 116. 13: 118. 

 silaifolium. 11: 117. 

 Virginianum, 11: 3, 34, 67. 81, 99. 

 12: 34. 65, 76, 97. 13: 6, 25, 

 55. 118, 121. 14: 7. 42, 66, 99. 

 15: 4. 17: 69. 19: 48, 108. 

 20: 15. 36. 53. 

 gracile, 13: 11^. 

 Camptosorus 



rhizophyllus, 11: 68, 100. 12: 69. 

 76. 13: 12. 38. 14: 4, 69, 89. 

 101. 15: 7. 86. 16: 102. 17: 

 73. 19: 111. 20: 11. 38, 56. 

 intermedia. 14: t89. 

 Ceratopteris 



thalictroides, 11: 3, 13. 12: 35. 

 14: 56. 

 Ceropteris 



triangularis, 12: 58. 

 Cheilanthes 



Alabamensis. 11: 35. 12: 36. 13: 



9. 14: 89. 

 amoena, 12: 7. 

 argentea, 14: 89. 

 Californica, 12: 7. 14: 89. 

 amoena, 14: f89. 



Clevelandii, 14: 89. 

 Cooperae, 12: 7. 14: 89. 

 Eatonii, 11: 35. 14: 89. 17: 34. 

 Feei, 17: 3. 20: 37. 

 Fendleri, 11: 35. 12: 8. 14: 89. 

 17: 3. 



ribrillosa, 12: 7. 14: 90. 

 gracillima, 11: 82. 12: 7, 99, 109. 



14: 3, 90. 

 lanosa, 12: 81. 19: 109. 20: 37. 

 lanuginosa, 11: 35, 67, 82. 12: 



76, 99. 14: 90. 

 lendigera, 14: 188. 17: 4. 

 leucopoda, 11: 3,5. 14: 118. 

 Lindheimeri, 11: 35. 14: 118. 17: 



3. 



Matthewsi, 13: 81. 

 microphylla, 11: 35. 12: 36. 14: 

 118. 



Moritziana, 12: 44. 14: 118. 

 myriophylla, 11: 35. 12: 8, 82. 

 14: 118. 



Parishii, 12: 7. 14: US. 16: 35. 



Pringlei, 14: 118. 



sonorensis, 20: 79. 



tomentosa, 11: 35. 13: 10. 14: 



118. 17: 3. 



vestita. 11: 100. 12: 69. 13: 10 



14: 119. 17: 73. 

 viscida. 12: 7. 14: 119. 

 Wrightii, 11: 35. 14: 119. 17: 3. 

 Cryptogramma 



acrostichoides, 11: 82. 12: 8, 99. 



14: 3, 67, 119. 20: 10. 

 gracilis, 14: 119. 

 Stelleri. 20: 10. 

 Cystopteris 



bulbifera. 11: 69. 101. 12: 69, 76. 

 13: 38. *£99. 14: 5. 71. 100. 



119. 15: 10, 16. 103. 16: 102, 

 17: 3. 19: 112. 20: 12. 40. 



fragilis. 11: 69, 83. 100. 12: 11, 

 69. 76. 98. 13: 38, 77. 14: 5, 

 71. 100. 120. 15: 10. 53. 17: 

 5. 74. 18: 16. 19: 5, 112, 

 128. 20: 13. 40. 71. 



angustata. 14: tl20. 



dentata. 14. 100. t120. 



laciniata, 14: t120. 



Mackayi. 14: 120. 



maonasora. 14: "h20. 



seniDervirens. 18: 85. 



tenuifolia. 16: *i75. 

 Montana. 14: 7, 120. 



