INDEX TO THE COMMON NAMES. 329 ; 
Polypody, six-angled, 203. 
Polypody sweet, 148. 
Purple-stemmed cliff-brake, 85. 
QUILL fern, 120. 
RATTLESNAKE fern, 41. 
Regal fern, 34. 
Resurrection fern, 199. 
Rock brake, 285. 
Rock fern, 136. 
Royal fern, 34. 
Royal moonwort, 34. 
Royal Osmund, 34. 
Rusty Woodsia, 93. 
SCALY polypody, 199. 
Screw fern, 162. 
Seaweed fern, 270. 
Sensitive fern, 253. 
Shield fern, Massachusetts, 126. 
Shield, marginal, 134. 
Shield, spinulose, 143. 
Shuttlecock fern, 258. 
Silvery spleenwort, 185. 
Six-angled polypody, 203. 
Slender cliff-brake, 85. 
Small spleenwort, 159% 
Smooth Woodsia, 99. 
Snake brake, 39. 
Snake-tongue fern, 281. 
Snuff-box fern, 120. 
Spinulose shield fern, 143. 
Spleenwort, black-stemmed, 157. 
Spleenwort, dwarf, 157. 
Spleenwort, ebony, 160. 
Spleenwort, green, 158. 
Spleenwort, maidenhair, 155. 
Spleenwort, mountain, 164. 
Spleenwort, little ebony, 160, 
Spleenwort, narrow-leaved, 187. 
Spleenwort, pinnatifid, 167. 
Spleenwort, silvery, 185. 
Spleenwort, small, 159. 
Spleenwort, swamp, 189. 
Spleenwort, wall, 157. 
Spring wurzel, 52. 
St. Christopher’s herb, 34 
St. John’s hands, 137. 
Stone brake, 197. 
Stone fern, 163, 197. 
Swamp spleenwort, 159. 
Sweet brake, 137. 
Sweet polypody, 148. 
Sun fern, 201, 
TENT-Wort, 163. 
Tree fern, 33, 199. 
Two-ranked fern, 258. 
Turkey-foot fern, 71. 
UMBRELLA fern, 73. 
Unshoe-the-horse, 53. 
Upland fern, 73. 
Venus-Har fern, 246. 
Vermifuge 137. 
Virginia moonwort, 44. 
Water fern, 33. 
Waterwort fern, 157. 
Walking fern, 265. 
Wall fern, 197. 
Wall link, 267. 
Wall rue, 162. 
Wall spleenwort, 157. 
White maidenhair, 163. 
White-oak fern, 211. 
Windsor fern, 251. 
Winter brake, 84. 
Woodsia, alpine, 98. 
Woodsia, oblong, 96. 
Woodsia, obtuse, 96. 
Woodsia, rusty, 93. 
Woodsia, smooth, 99. 
Woolly lip-fern, 240. 
