ERRATA, 



Page 46. Line 1 for have read has . 



47. 13 dele the comma. 



48. 1 after Latin insert a comma. 



49. 27 after being insert often. 



02. 23 after solid issima, insert a period 



52. 27 for Du read Dr. 



53. 1 for variety a read variety ', a. 

 53. 18 at its close insert a period. 



55. 31 for the semicolon substittite a comma. 



57. 22 for vary read variety. 



63. 1 for peircer read piercer. 



71. 8 after short insert a comma. 



75. 1 for Montague read Montagu. 



S2. 2 for occurs read occur. 



88. 30 after Feldspar dele the comma. 



93. 7 after calyptra insert a. 



99. 16 for Aurata read Crocala. 



100. 22 for bacillaris read Floerkeana. 



113. 12 for Trichotropris read Tricholropis. 



117. 16 for aud read and. 



117. Third line from bottom for foliages read foliage 



118. Fourth line from bottom for sizes read size. 



119. 10 for formed read famed. 



119. 18 for Brylogia read Bryologia. 



120. Twelfth line from bottom for exclusicely read exclusively. 



121. 10 for huundred read hundred. 



125. 14 for Vaccinum read Vaccinium. 



126. 3 for BOREGI. Tuckerman read BORYI of Tuckerman 



127. 18 for Cothouy read Couthouy. 

 129. 6 for Dentatium read Dentalium 

 129. 13 for Trytonium read Trilonium. 



