128 
INDEX. 
POLTSTICHUM. 
Aculeatum, pa^e 56, 57. 
Varieties of, 56, 120. 
Transformation of varieties, 30. 
Lonchitidioides v. lonchitis, 30, 56, 57.' 
The culture of, 57. 
Angulare, 57, 77. 
Description of, 57. 
Variety of, 120. 
Lonchitis, 14, 30, 31. 
The culture of, 30, 31. 
Difficulty of procuring, 29, 53. 
Ptekis Aquilina, 57. 
Difficult to cultivate, viii. (Introduction). 
SCOLOPENDRIUM. 
Vulgare, 54, 57. 
Varieties of, 2, 4, 77, 88, 120. 
Transformation of, 88. 
Field for research, 89. 
Trichomanes. 
Eadicans, 119. 
WOODSIA. 
Hyperborea, 105. 
Ilvensis, 27, 105, 119. 
THE END. 
London: Printed by Smith, Elder and Co., Old Bailey, E.G. 
