﻿I9S 
  ' 
  BOTANICAL 
  GAZETTE. 
  [ 
  AugUSt, 
  

  

  wards 
  the 
  apex 
  broader 
  and 
  shorter, 
  and 
  like 
  the 
  stem 
  

   leaves 
  and 
  branch 
  leaves 
  show 
  no 
  trace 
  of 
  fibrils. 
  On 
  the 
  

   outside, 
  however, 
  there 
  are 
  round 
  pores 
  in 
  the 
  middle 
  of 
  the 
  

   cell-wall, 
  which 
  become 
  scarcer 
  toward 
  the 
  apex, 
  and 
  

   especially 
  prefer 
  the 
  upper 
  angles 
  of 
  the 
  cells. 
  The 
  cap- 
  

   sides 
  are 
  small, 
  and 
  when 
  emptV 
  of 
  spores 
  urn-shaped, 
  as 
  in 
  

   S. 
  cuspidatum 
  The 
  spores 
  are 
  yellow, 
  smooth 
  and 
  o 
  030 
  to 
  

   ^•035.mm. 
  diam. 
  It 
  is 
  very 
  strange 
  that 
  the 
  male 
  plant 
  still 
  

   remains 
  quite 
  unknown, 
  and 
  yet 
  it 
  can 
  not 
  be 
  very 
  difficult 
  

   to 
  find 
  it 
  in 
  the 
  localities 
  where 
  the 
  species 
  fruits. 
  I 
  beg 
  

  

  Spl 
  

  

  Nor 
  

  

  tion 
  particularly 
  to 
  a 
  search 
  for 
  the 
  male 
  plants 
  of 
  S. 
  macro- 
  

   phvllum. 
  This 
  should 
  be 
  done 
  in 
  the 
  winter 
  months 
  in 
  

   which, 
  as 
  is 
  known, 
  the 
  Sphagna 
  bloom. 
  

  

  b. 
  Pores 
  on 
  the 
  outer 
  side 
  of 
  the 
  leaf 
  very 
  small, 
  0.004 
  to 
  0.005 
  mni. 
  

   diam. 
  in 
  one 
  or 
  two 
  rows 
  in 
  the 
  middle 
  of 
  the 
  cell-wall, 
  40 
  to 
  65 
  in 
  

  

  a 
  cell. 
  

  

  Floridaniim 
  (Aust. 
  \ 
  Card, 
  in 
  R 
  

  

  de 
  TAmerique 
  du 
  Nord 
  (1887). 
  

  

  Syn.: 
  S. 
  macwphyUum, 
  var. 
  Flnridanum 
  Aust. 
  in 
  Bull. 
  Torr. 
  Bot. 
  Club 
  

  

  vii, 
  p. 
  15 
  (1880). 
  

  

  i 
  

  

  S. 
  cribrusum 
  Lindb. 
  in 
  Eur. 
  och 
  Nord. 
  Am. 
  Hvit-mossor 
  (1882). 
  

  

  Louisiana 
  (Langlo/s), 
  Florida 
  (Aus^/jO- 
  

  

  Since 
  Austin 
  had 
  previously 
  distinguished 
  this 
  species 
  as 
  

   b. 
  macrophyllum 
  var. 
  Floridanum 
  it 
  was 
  not 
  justifiable 
  for 
  

   l^mdbergm 
  Hvit-mossor 
  to 
  set 
  up 
  a 
  new 
  name 
  for 
  it, 
  and 
  

   *-arclot 
  was 
  quite 
  right 
  in 
  retaining 
  for 
  the 
  species 
  Austins 
  

   name, 
  S. 
  Floridanum. 
  

  

  S. 
  Floridanum 
  stands, 
  with 
  respect 
  to 
  the 
  pore-structure 
  

   on 
  the 
  outer 
  side 
  of 
  the 
  branch 
  leaves, 
  in 
  a 
  similar 
  relation 
  to 
  

   ^. 
  macrophyllum 
  as 
  S. 
  obtusum 
  Warnst. 
  (1889 
  non 
  iS/v) 
  

   cloes_ 
  to 
  S 
  Mendocinnm 
  Sull. 
  et 
  Lesq, 
  The 
  last 
  two 
  

   species 
  are 
  hkewise 
  chiefly 
  distinguished 
  bv 
  the 
  size 
  of 
  the 
  

   pores 
  on 
  the 
  back 
  of 
  the 
  branch 
  leaves. 
  "' 
  In 
  S. 
  obtusum 
  

   nese 
  pores 
  are 
  extremely 
  small, 
  always 
  show 
  vanishing 
  con' 
  

   touis, 
  and 
  wr^ 
  cxx^\.^ 
  — 
  j^ 
  __• 
  m 
  . 
  , 
  ^ 
  . 
  . 
  ■ 
  !_^ 
  ^f 
  the 
  

  

  trv.S 
  P'^'^'^'^^S. 
  Mendocinum, 
  on 
  the 
  contrary, 
  J,^'' 
  

   V 
  a} 
  s 
  larger 
  and 
  exhibit 
  clearly 
  defined 
  boundaries. 
  Th^ 
  

   .lie 
  flowers 
  as 
  well 
  as 
  the 
  fruit 
  of 
  S. 
  Floridanum 
  are 
  yet 
  un- 
  

  

  al 
  

   m 
  

  

  known 
  I 
  

  

  Ncnvitfpin, 
  Feb. 
  6, 
  1890. 
  

  

  