﻿190 
  BOTAXICAI. 
  GAZKTTE. 
  [ 
  AugUSt^ 
  

  

  broad, 
  in 
  the 
  upper 
  half 
  almost 
  rhombic, 
  in 
  the 
  lower 
  rhom- 
  

   boidal, 
  often 
  once 
  or 
  several 
  times 
  divided 
  by 
  obliquely 
  

   transverse 
  walls, 
  and 
  with 
  membrane-plaits 
  ; 
  without 
  fibrils- 
  

   and 
  pores 
  oftener 
  than 
  with 
  them 
  in 
  the 
  upper 
  part 
  of 
  the 
  

   leaf: 
  the 
  hyaline 
  cells 
  of 
  the 
  leaf-base 
  with 
  large 
  saccate 
  ex- 
  

   tensions; 
  auricles 
  small. 
  

  

  Fascicles 
  mostlv 
  five-branched, 
  the 
  three 
  stouter 
  branches 
  

   sometimes 
  long 
  and 
  much 
  attenuated 
  to 
  the 
  point, 
  sometimes 
  

   shorter 
  and 
  abruptly 
  pointed, 
  spreading 
  in 
  very 
  different 
  

   directions 
  from 
  the 
  stem, 
  Jive 
  angled 
  through 
  the 
  distindlj 
  

   fvc-rankcd 
  arrangement 
  of 
  the 
  leaves. 
  Retort 
  cells 
  of 
  the- 
  

   branch 
  cortex 
  with 
  slightly 
  recurved 
  neck, 
  and 
  a 
  large 
  ap- 
  

   erture 
  at 
  the 
  summit. 
  Branch 
  leaves 
  closely 
  or 
  loosely 
  im- 
  

   bricated, 
  never 
  secund, 
  small, 
  ovate 
  lanceolate, 
  at 
  the 
  usu- 
  

  

  ally 
  round-truncate 
  involute-edged 
  and 
  dentate 
  apex 
  bor- 
  

  

  dered 
  by 
  two 
  or 
  three 
  rows 
  of 
  narrow 
  cells. 
  The 
  inner 
  sur- 
  

   fiice 
  in 
  the 
  upper 
  part 
  with 
  very 
  small, 
  isolated, 
  ringed 
  

   pores, 
  especially 
  in 
  the 
  upper 
  and 
  lower 
  cell-angles 
  ; 
  in 
  the 
  

   broader 
  part 
  of 
  the 
  leaf, 
  near 
  the 
  margins, 
  down 
  to 
  the 
  base 
  

   with 
  large 
  pores 
  usually 
  without 
  rings. 
  Outer 
  surface 
  from 
  

   apex 
  to 
  base 
  with 
  numerous 
  pores 
  along 
  the 
  commissures, 
  

   those 
  near 
  the 
  apex 
  strongly 
  ringed, 
  much 
  larger 
  than 
  in 
  

   S. 
  Warnstorfii 
  and 
  not 
  round 
  but 
  semicircular 
  ; 
  below 
  becom- 
  

   ing 
  gradually 
  larger. 
  N^ar 
  the 
  margins 
  these 
  pores 
  are 
  in 
  

   part 
  opposite 
  to 
  the 
  inner 
  pores, 
  therebv 
  producing 
  complete 
  

   perforations 
  ; 
  leaves 
  with 
  a 
  plait 
  in 
  the 
  "'middle 
  of 
  the 
  basal 
  

   part 
  ; 
  hyaline 
  cells 
  with 
  membrane-plaits. 
  ' 
  

  

  Chlorophyllose 
  cells 
  in 
  cross-section 
  triangular 
  to 
  trapezi- 
  

   form, 
  placed 
  on 
  the 
  inner 
  side 
  of 
  the 
  leaf 
  between 
  the 
  hyaline 
  

   cells 
  and 
  always 
  free 
  ; 
  on 
  the 
  outer 
  side 
  often 
  enclosed 
  by 
  

   the 
  (here 
  more 
  convex) 
  hvaline 
  cells, 
  or 
  free. 
  Lumen 
  

   large, 
  triangular 
  ; 
  the 
  walls 
  afl 
  around 
  equally 
  thick. 
  

  

  Lommonly 
  monoicous, 
  more 
  rarely 
  dioicous 
  ; 
  $ 
  branches 
  

   short, 
  in 
  the 
  antheridium-bearing 
  part 
  clavate-thickened 
  and 
  

   always 
  red 
  or 
  violet, 
  after 
  flowering 
  lencrthened 
  and 
  attcnu- 
  

   ate-pomted 
  Perigonial 
  leaves 
  qui'e 
  similar 
  to 
  the 
  rest 
  ot 
  

   the 
  branch 
  leaves 
  in 
  form 
  and 
  cell 
  net-work, 
  but 
  nonfibrillose 
  

   and 
  nonporose 
  in 
  the 
  lower 
  half. 
  Perichtetial 
  leaves 
  large. 
  

   ovate, 
  above 
  drawn 
  out 
  to 
  a 
  longer 
  or 
  shorter, 
  emarginate- 
  

   involute-edged 
  apex; 
  broadlv 
  bordered; 
  in 
  the 
  lower 
  b£ 
  

   constructed 
  entirely 
  of 
  long 
  Rectangular 
  pitted 
  cells, 
  m 
  th 
  

   upper 
  part 
  of 
  both 
  kinds 
  of 
  cells 
  ; 
  hyaline 
  cells 
  rhombic 
  to 
  

   rhomboidal, 
  once 
  or 
  several 
  times 
  divided. 
  Fruit 
  not 
  rare- 
  

   spores 
  tme 
  yellow, 
  quite 
  smooth, 
  0.021 
  to 
  0.025 
  mm. 
  diam. 
  

  

  