INDEX TO THE COMMON NAMES. 



^75 



Muiintaiii rubli, 24. 

 Mud horselai], 53, 62. 



Naked horsetail, 23. 



Oregon selaginellaj 14S. 



PADDuCK-pipes, 24, 49, 62. 

 I'epperwoit, iSS. 

 Pillwoi't, 206. 

 Pine-grass, 49. 

 Pine-top, 49. 

 Pipes, 24. 

 Polishing-nish, 23. 

 Prickly mountain moss, 150. 

 Princess pine, 93. 



RKyURRECTIUN IIKJSS, l6l. 



Resurrection plant, 163. 

 River-bank quillwort, 239. 

 Rock selaginella, 139. 

 Running moss, S5. 

 Running pine, 84, 93. 



Salvinia, 175. 

 Savin-leaved club-moss, 95. 

 Scouring-rush, 23. 

 Scrub-grass, 23. 

 Shade horsetail, 53. 

 Shave -grass, 23. 

 Shining club-moss, 107. 



Shore horsetail, 65. 

 Sigiilarlas, 6, 

 Smoke-rush, 49. 

 Smoke-weed, 24. 

 Smooth scouring-rush, 30. 

 Snake-grass, 49. 

 Snake-moss, 85. 

 Snake-rush, 24. 

 Snake-weed, 24. 

 Stag-horn, 84, 

 Stag-horn club-moss, lor 

 Sti:ff club-moss, S6. 

 Swamp evergreen, no. 



Tad-pipes, 49. 



Toad-pipes, 49. 



Toad-tail, 85. 



Trailing Christmas-green, 84, 93. 



Tree club-moss, 99. 



Tuckerman's quillwort, 225. 



Variegated scouring-rush, 36. 

 Virgin Mary's furze, 114. 



Water fern, 170, iSr. 

 Water horsetail, 58. 

 Water-pepper, 206. 

 Winter-rush, 24. 



Wolf's-claw, 85. 

 Wood horsetail, 53'. 



