﻿4 
  

  

  114 
  Nichols: 
  The 
  vegetation 
  of 
  Connecticut 
  

  

  cases, 
  so 
  favorable 
  are 
  the 
  soil 
  moisture 
  relations 
  along 
  sea 
  bluffs 
  

   of 
  glacial 
  drift 
  that 
  the 
  vegetation 
  of 
  slopes 
  protected 
  from 
  wave 
  

   action 
  includes 
  such 
  more 
  or 
  less 
  hydrophytic 
  forms 
  as 
  Salix 
  

   cordata, 
  Alnus 
  rugosa, 
  Rosa 
  Carolina, 
  Heracleum 
  lanatum^ 
  Ver- 
  

   bena 
  hastata, 
  and 
  Sambucus 
  canadensis. 
  

  

  There 
  is 
  one 
  other 
  phase 
  of 
  succession 
  along 
  the 
  seacoast 
  that 
  

   may 
  well 
  be 
  suggested 
  here. 
  ■ 
  The 
  courses 
  of 
  the 
  currents, 
  which 
  in 
  

   large 
  measure 
  determine 
  the 
  nature 
  of 
  the 
  bottom 
  in 
  different 
  

   areas 
  and, 
  ipso 
  facto 
  , 
  the 
  nature 
  of 
  the 
  vegetation 
  growing 
  on 
  

   the 
  bottom, 
  are 
  by 
  no 
  means 
  constant 
  in 
  their 
  direction 
  and 
  

   influence. 
  For 
  example, 
  through 
  the 
  development 
  of 
  a 
  sand 
  

   spit, 
  a 
  strong 
  tidal 
  current 
  may 
  become 
  deflected 
  into 
  an 
  entirely 
  

   new 
  channel, 
  thereby 
  subjecting 
  what 
  formerly 
  were 
  depositing 
  

   areas 
  to 
  erosion, 
  and 
  vice 
  versa. 
  Similarly, 
  the 
  development 
  

   of 
  an 
  off-shore 
  barrier 
  beach 
  may 
  result 
  In 
  an 
  eroding 
  shore 
  

   becoming 
  transformed 
  Into 
  a 
  depositing 
  shore. 
  The 
  importance 
  

   of 
  such 
  changes 
  in 
  relation 
  to 
  vegetation 
  Is 
  self-evident. 
  

  

  r 
  

  

  Sheffield 
  Scientific 
  School, 
  

  

  Yale 
  University. 
  

  

  Literature 
  cited 
  

  

  Baker, 
  S. 
  M,, 
  & 
  Blandford, 
  M. 
  H. 
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  of 
  the 
  salt 
  

   marsh. 
  II. 
  Their 
  systematic 
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  morphology, 
  and 
  

   ecology. 
  Jour, 
  Linn, 
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  Bot. 
  43: 
  325-380. 
  pL 
  28-30 
  +/• 
  

   I- 
  J 
  8. 
  1 
  91 
  6. 
  

  

  Bartlett, 
  H. 
  H, 
  The 
  submarine 
  Chamaecyparis 
  bog 
  at 
  Woods 
  Hole, 
  

   Massachusetts, 
  Rhodora 
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  : 
  221-235, 
  pL 
  82 
  -{- 
  i 
  fig. 
  1909. 
  

  

  Botanical 
  evidence 
  of 
  coastal 
  subsidence. 
  Science 
  II. 
  33- 
  ^9" 
  

  

  31- 
  191I' 
  

  

  Collins, 
  F. 
  S, 
  Preliminary 
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  of 
  New 
  England 
  plants. 
  V, 
  Marine 
  

  

  algae, 
  Rhodora 
  2; 
  41-52. 
  1900. 
  

   ' 
  Phycological 
  notes 
  of 
  I 
  saac 
  H 
  olden. 
  Rhodora 
  7 
  : 
  1 
  68-1 
  7^; 
  

  

  222-24^. 
  1905. 
  

   Cowles, 
  H. 
  C. 
  The 
  ecological 
  relations 
  of 
  the 
  vegetation 
  on 
  the 
  sand 
  

   dunes 
  of 
  Lake 
  Michigan. 
  Bot. 
  Gaz, 
  27: 
  95-117, 
  167-202, 
  281- 
  

   ?o8, 
  361-391- 
  /• 
  ^-26. 
  1899. 
  

  

  The 
  plant 
  societies 
  of 
  Chicago 
  and 
  vicinity. 
  Geog. 
  Soc. 
  Chicago 
  

   Rull. 
  2. 
  pp. 
  1-76. 
  /. 
  1-40. 
  1901. 
  

  

  vis, 
  B. 
  M. 
  General 
  characteristics 
  of 
  the 
  algal 
  vegetation 
  of 
  Buzz- 
  

   ards 
  Bay 
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  Vineyard 
  Sound 
  in 
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  vicinity 
  of 
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  Hole. 
  Bull- 
  

   Bur. 
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  31^:443-544. 
  charts 
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  IQU- 
  

  

  