﻿28o 
  Geological 
  Survey 
  of 
  L,ouisiana 
  [Sect. 
  

  

  Angiosperm^-Dicotyledon^ 
  

  

  JUGLANDACE.^ 
  

   Juglans 
  rugosa, 
  Plate 
  35, 
  figs, 
  i, 
  2. 
  

  

  Juglans 
  rugosa 
  Lesq., 
  Am. 
  Journ. 
  Sci., 
  vol. 
  45 
  (1868), 
  p. 
  206 
  ; 
  

   Tert. 
  Fl., 
  p. 
  286, 
  pi. 
  54, 
  figs. 
  5, 
  14; 
  pi. 
  55, 
  figs. 
  1-9; 
  pi. 
  

   56, 
  figs. 
  I, 
  2. 
  

   In 
  red 
  sandstone, 
  % 
  m. 
  above 
  Coushatta, 
  La. 
  

   Juglans 
  schimperi, 
  Plates 
  32, 
  fig. 
  5 
  ; 
  33, 
  figs. 
  1,2; 
  35, 
  fig. 
  3. 
  

  

  Juglans 
  schimperi 
  I,esq., 
  Ann. 
  Rep. 
  U. 
  S. 
  Geol. 
  and 
  Geog. 
  

   Surv. 
  Terr., 
  1871(1872), 
  Suppl.,p. 
  8; 
  Tert. 
  Fl., 
  p. 
  287, 
  pi. 
  

   56, 
  fig. 
  5-10. 
  

   Although 
  these 
  specimens 
  vary 
  considerably 
  amongst 
  them- 
  

   selves 
  they 
  occur 
  in 
  such 
  close 
  proxiraitj'' 
  in 
  the 
  rock 
  that 
  I 
  hav€ 
  

   thought 
  it 
  advisable 
  to 
  include 
  them 
  all 
  under 
  the 
  one 
  species. 
  

   In 
  regard 
  to 
  our 
  fig. 
  2, 
  pi. 
  33, 
  there 
  can 
  be 
  no 
  doubt, 
  when 
  com- 
  

   pared 
  with 
  Lesq 
  uereux' 
  fig. 
  5, 
  pi. 
  56, 
  above 
  quoted, 
  but 
  the 
  others 
  

   might 
  be 
  more 
  or 
  less 
  successfully 
  compared 
  withy, 
  dubia 
  Ludw., 
  

   Palaeontog., 
  vol. 
  8, 
  pi. 
  59, 
  figs, 
  i, 
  2, 
  or 
  with/, 
  occidentalis 
  Newb., 
  

   Later 
  Ext. 
  Fl., 
  Monog. 
  U. 
  S. 
  Geol. 
  Surv., 
  vol. 
  35, 
  pi. 
  65, 
  fig. 
  i 
  ; 
  

   pi. 
  66, 
  figs. 
  1-4. 
  

  

  In 
  red 
  sandstone, 
  ^ 
  m. 
  above 
  Coushatta, 
  La. 
  

  

  FAGACEAL 
  

  

  Quercus 
  microdentata, 
  n. 
  sp., 
  Plate 
  34. 
  

  

  Leaf 
  elliptical 
  in 
  outline, 
  about 
  8>^ 
  in. 
  long 
  by 
  3^ 
  in. 
  broad 
  in 
  the 
  middle 
  ; 
  

   finely 
  dentate-serrate 
  from 
  below 
  the 
  center 
  to 
  the 
  apex, 
  entire 
  and 
  wavy 
  

   margined 
  below 
  ; 
  secondary 
  nervation 
  fine, 
  sub-parallel, 
  leaving 
  the 
  midrib 
  

   at 
  an 
  angle 
  of 
  about 
  45 
  degrees, 
  curving 
  upward 
  near 
  the 
  margin, 
  each 
  

   nerve 
  ending 
  in 
  one 
  of 
  the 
  teeth, 
  or 
  the 
  lower 
  ones 
  extending 
  close 
  to 
  and 
  

   upward 
  along 
  the 
  margin. 
  

  

  In 
  red 
  sandstone, 
  %. 
  m. 
  above 
  Coushatta, 
  La. 
  

  

  ULMACE.-E 
  

   Ulmus 
  tenuinervis, 
  Plate 
  32, 
  fig. 
  6. 
  

  

  ULmus 
  tenuinervis 
  Lesq., 
  Ann. 
  Rept. 
  U. 
  S. 
  Geol. 
  and 
  Geog. 
  

   Surv. 
  Terr., 
  1873, 
  (1874), 
  p. 
  412 
  ; 
  Tert. 
  FL, 
  p. 
  188, 
  pi. 
  26 
  

   figs. 
  1-3. 
  

   In 
  red 
  sandstone, 
  %. 
  m. 
  above 
  Coushatta, 
  La. 
  

  

  