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  Berry: 
  Contributions 
  to 
  Mesozoic 
  Flora 
  

  

  399 
  

  

  f' 
  4b; 
  32 
  J- 
  

  

  Angiospermophyta 
  

  

  ARALES 
  

  

  PiSTiA 
  NORDENSKIOLDI 
  (Heer) 
  Berry 
  

  

  m 
  Nordenskioldi 
  Heer, 
  Fl. 
  Foss. 
  Arct. 
  3^ 
  114. 
  pi 
  

   II, 
  12. 
  1874. 
  

  

  Pistia 
  Nordenskioldi 
  Berry, 
  Bull. 
  Torrey 
  Club 
  37: 
  189. 
  pL 
  21, 
  

  

  /. 
  1-75. 
  I9IO. 
  

  

  This 
  species 
  has 
  been 
  fully 
  described 
  an.d 
  figured 
  by 
  the 
  

   writer 
  In 
  the 
  publication 
  cited. 
  It 
  is 
  exceedingly 
  common 
  at 
  

   certain 
  localities 
  and 
  in 
  some 
  cases 
  the 
  

   cuticle 
  is 
  preserved. 
  The 
  epidermal 
  

   cells 
  are 
  small, 
  prevailingly 
  rectangu- 
  

   lar 
  and 
  thick 
  walled. 
  The 
  stomata 
  

   are 
  few 
  and 
  scattered, 
  confined 
  to 
  a 
  

   single 
  surface 
  of 
  the 
  leaf 
  and 
  altogether 
  

   absent 
  from 
  the 
  broad 
  leaf 
  bases. 
  

   They 
  are 
  situated 
  in 
  depressions 
  of 
  

   the 
  surface 
  and 
  have 
  thin 
  elongated 
  

   guard 
  cells 
  and 
  two 
  accessory 
  cells. 
  

  

  Fig. 
  I. 
  Pistia 
  Norden- 
  

   skioldi 
  (Heer) 
  Berry. 
  Epi- 
  

  

  LOCALITIES: 
  Parker 
  Landing, 
  Tar 
  <iermal 
  cell 
  outlines 
  and 
  

  

  stomata, 
  X 
  lOO 
  

  

  River, 
  Pitt 
  County; 
  Blackmans 
  Bluff, 
  

  

  Neuse 
  River, 
  Wayne 
  County; 
  Sykes 
  Landing 
  (about 
  fifty-seven 
  

  

  miles 
  above 
  Wilmington), 
  Corbits 
  Bridge, 
  Big 
  

   Bend, 
  Atlantic 
  Coast 
  Line 
  Bridge, 
  and 
  Horrell 
  

   Landing 
  on 
  the 
  Black 
  River, 
  Sampson 
  County. 
  

  

  POALES 
  

  

  Phragmites 
  Pratti 
  Berry 
  

   INCERTAE 
  SEDIS 
  

  

  DORYANTHITES 
  CRETACEA 
  Berry 
  

  

  Doryanthites 
  cretacea 
  Berry, 
  Bull. 
  Torrey 
  Club 
  

  

  

  

  

  

  

  

  

  

  

  

  c 
  

  

  

  

  

  

  

  

  

  

  

  

  1 
  

  

  Fig. 
  2. 
  Dory- 
  

   anthites 
  CRETA- 
  

   CEA 
  Berry. 
  Lon- 
  

   gitudinal 
  striations 
  

   of 
  surface 
  and 
  sto- 
  

   mata, 
  X 
  35- 
  

  

  38: 
  406. 
  

  

  Surv 
  

  

  pL 
  i7r 
  f 
  

  

  f. 
  J. 
  I9I9;M 
  

  

  pi 
  5^ 
  J- 
  

  

  1916. 
  

  

  This 
  species 
  has 
  been 
  sufficiently 
  described 
  in 
  the 
  papers 
  cited, 
  

   and 
  it 
  remains 
  to 
  refer 
  briefly 
  to 
  the 
  stomata. 
  The 
  longitudinal 
  

  

  