﻿22 
  J. 
  BRLN, 
  DIAT0MÉE8 
  DE 
  JAN 
  MAVEN 
  ET 
  Dl 
  (iK«Ex\LAND. 
  

  

  Pl. 
  2. 
  

  

  rtessius 
  fails 
  a 
  -\- 
  1400 
  avcc 
  Leiitille 
  Apo. 
  2 
  uiiii. 
  O. 
  >'. 
  1,30 
  ot 
  

   diiuinnés 
  a 
  + 
  600 
  par 
  la 
  phototjpio. 
  

  

  t, 
  2. 
  Pimiularia 
  palchra 
  0STK. 
  forma 
  iiukjuh 
  .]. 
  JiKUN. 
  

  

  y, 
  4. 
  — 
  plana 
  J. 
  Brun 
  (= 
  brevirostata 
  Cl. 
  rar.?). 
  

  

  5. 
  Nitzsckia 
  Natltorsti 
  J. 
  BRUN. 
  

  

  (= 
  Stagnoruni 
  Rab. 
  var.?) 
  

  

  (), 
  7. 
  Neidima 
  decoratmn 
  J. 
  BRUN. 
  

  

  8. 
  Naricula 
  contenta 
  GRUN. 
  var. 
  rohnsto 
  ,]. 
  iJR. 
  

  

  9. 
  IHploneis 
  nitichda 
  J. 
  Brun. 
  

  

  10. 
  id. 
  id. 
  å 
  + 
  1000. 
  

  

  11. 
  Staiiro^ieis 
  hicida 
  J. 
  Brun 
  (forme 
  clliitti(juo 
  norniale). 
  

  

  (12 
  forma 
  cuneata 
  — 
  13. 
  forma 
  capitata.) 
  

   14 
  ä 
  IG. 
  Avipliora 
  Dménii 
  J. 
  BRUN. 
  

   17 
  i\ 
  1!). 
  Fragilaria 
  laevisnhna 
  Cleve 
  var. 
  circiiiiinodimi 
  J. 
  I!k. 
  

  

  (18 
  forma 
  minor. 
  — 
  17, 
  19 
  forma 
  major). 
  

   •20 
  il 
  22. 
  Achumtlies 
  Natlior.sti 
  J. 
  BRUN. 
  

  

  (20, 
  21 
  valve 
  inféricurc 
  — 
  22 
  valve 
  supcrieure.) 
  

  

  23. 
  Neidiunt 
  productam 
  W. 
  Sm. 
  var. 
  j)oli/<jil>Oa 
  J. 
  Br. 
  

  

  24. 
  (idem, 
  aiiomalie 
  i\ 
  grosses 
  ]>erles!) 
  

  

  25. 
  2(5. 
  — 
  lridit> 
  EllR. 
  rar. 
  hnninotfa 
  J. 
  BrUN. 
  

  

  (25 
  forme 
  normale 
  — 
  2(5 
  formo 
  couiquo.) 
  

  

  