﻿Vol. 
  XV. 
  No. 
  1.- 
  BOTANICAL 
  Gazette.- 
  Jan.. 
  i890. 
  

  

  Ot! 
  tlie 
  alflinflf> 
  ot 
  the 
  Filipine.T 
  

  

  UOrOLAS 
  H. 
  CAMPBELL. 
  

  

  Xo 
  departn..MU 
  of 
  botanv 
  is 
  more 
  ^-^^'"f^^^^jf^'ts 
  an^ 
  

   study 
  of 
  the 
  phylou'cnv 
  of 
  the 
  diiiennt 
  groups 
  ^ 
  P^^ 
  i_ 
  

  

  their 
  mutual 
  relatior,ships. 
  The 
  Ptf 
  '^^P^^^^J 
  ed.U 
  affin- 
  

   !y 
  attracted 
  special 
  attention 
  from 
  their 
  ^^J^f'''' 
  j^| 
  ^ther 
  to 
  

   ^ty 
  on 
  the 
  OTIC 
  hand 
  to 
  the 
  bryopiiytes, 
  am 
  o 
  ^^^^^^ 
  ■^_ 
  

   tl»e 
  nowerin;: 
  plnnt^ 
  : 
  but 
  notvvnhstand.ng 
  tne^^^^^^ 
  ^^^^.^_ 
  

  

  y^'stigations 
  upon 
  them, 
  there 
  is 
  f 
  ''^"^"'^" 
  ^^^ 
  to 
  the 
  neigii- 
  

   ^on 
  respecting 
  alhnities 
  among 
  thcmsehe^ 
  ana 
  

  

  boring 
  groups. 
  , 
  , 
  v.. 
  .. 
  recent 
  very 
  sug- 
  

  

  The 
  pre 
  nt 
  paper 
  was 
  P 
  ^^^ 
  ^^^^^ 
  ^^^^^ 
  

   gestive 
  and 
  interesting 
  article 
  by 
  i^ov. 
  ' 
  j^g^;, 
  most 
  gen- 
  

   tains, 
  with 
  a 
  irood 
  sliou- 
  of 
  reason, 
  the^\^ 
  P^^ 
  affinities 
  of 
  the 
  

   erally 
  accepted 
  at 
  present 
  as 
  to 
  tneo 
  s, 
  Hvmenophyl- 
  

  

  Filicinea-, 
  Viz. 
  : 
  the 
  primitive 
  ^h^^^^-^^t^^^^^^^ 
  Filicinea.. 
  He 
  

   lace.^ 
  and 
  the 
  derivative 
  "^^ture 
  o 
  the 
  o 
  ^^^..^^^^, 
  of 
  the 
  

   shows 
  by 
  a 
  careful 
  comparative 
  stud} 
  ^^^^^^ 
  .^ 
  ^ 
  ^eg^^jar 
  

  

  different- 
  members 
  of 
  the 
  ^P^^^ 
  ^nVmenophyllaceae 
  to 
  the 
  

   increase 
  in 
  complexity 
  ^om 
  the 
  rty 
  ^^^^ 
  i^sse^, 
  though 
  

   ^larattiacea., 
  and 
  as 
  he 
  thinks 
  to 
  tbe 
  ^P^^^ 
  « 
  

   admitting 
  certain 
  difficulties 
  ^"^^^^^egtudv 
  of 
  these 
  problems 
  

  

  Having 
  devoted 
  much 
  ^IT^'r^S^at 
  different 
  conclusions 
  

   myself, 
  and 
  having 
  r^j^^^^^^^Jf 
  at'^ntion 
  to 
  certain 
  phasjs 
  of 
  

   this 
  paper 
  - 
  P-sented 
  to 
  caH 
  ^U 
  ^^"^ 
  ^^.^ 
  not 
  warranted 
  by 
  

   the 
  above 
  view 
  which 
  it 
  is 
  u 
  

   ^^^ts. 
  ^ 
  . 
  .. 
  the 
  leptosporangiate 
  ^f^'^J^'^Jl' 
  

  

  According 
  to 
  this 
  Y'^'-'^lf 
  the 
  Filicine^e, 
  and, 
  of 
  these, 
  

   garded 
  as 
  the 
  most 
  P"^ 
  ^^ubtedly 
  the 
  simplest 
  ^n^tiuc- 
  

   t\e 
  Hymenophyllace.;e 
  undoub^ 
  ^^^ 
  "^ 
  

  

  between 
  e.xi^i'v^ 
  " 
  -^ 
  

   These 
  conclusions 
  are 
  

  

  some 
  form 
  intei 
  !"«:;"'"'- 
  ^UriP 
  inese 
  cunv.^"-— 
  -~ 
  r 
  

  

  phvtes 
  and 
  the 
  higher 
  green 
  alg^^ 
  prothalhum 
  of 
  

  

  based 
  rtpon 
  the 
  very 
  «^"^P^^,, 
  P^^'^^ich 
  it 
  is 
  assumed 
  resem- 
  

   s^e 
  spe'cies 
  of 
  H)-e"ophyllum,-h^,^,,, 
  ^^^ 
  , 
  

  

  bles 
  the 
  ancestral 
  ^0^"^^^^^^; 
  difllcultiis, 
  how^^ 
  

   phytes_both_sprun^^ 
  ■ 
  

  

  Ann. 
  ofBot.iil.no. 
  H. 
  

  

  