﻿282 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  H. 
  aiiriculaia 
  Heer, 
  Fl. 
  Foss. 
  Arct., 
  vol. 
  2., 
  Fl. 
  Foss. 
  Alask., 
  

   p. 
  36, 
  pi. 
  9, 
  fig. 
  6, 
  but 
  it 
  is 
  a 
  much 
  larger 
  leaf 
  and 
  I 
  have 
  not 
  

   been 
  able 
  to 
  compare 
  it 
  satisfactorily 
  with 
  any 
  described 
  species 
  

   in 
  either 
  genus. 
  

  

  The 
  specific 
  name 
  is 
  given 
  for 
  Prof. 
  G. 
  D. 
  Harris, 
  through 
  

   whose 
  efforts 
  the 
  collection 
  containing 
  the 
  specimen 
  was 
  brought 
  

   to 
  my 
  attention. 
  

  

  In 
  claj^ 
  concretions. 
  Vineyard 
  bluff, 
  Cross 
  bayou, 
  (^2 
  mile 
  

   above 
  Slaughter-Pen 
  bluff) 
  Shreveport, 
  La. 
  

  

  Ficus 
  planicostata, 
  Plate 
  36. 
  

  

  Ficus 
  planicostata 
  Lesq., 
  Ann. 
  Rept. 
  U. 
  S. 
  Geol. 
  and 
  Geog. 
  

   Surv. 
  Terr., 
  1872, 
  (1873), 
  p. 
  393; 
  Tert. 
  FL, 
  p. 
  201 
  pi. 
  31, 
  

   figs. 
  1-8, 
  10-12. 
  

  

  Our 
  specimen 
  is 
  larger 
  than 
  anj^ 
  of 
  those 
  figured 
  by 
  Les- 
  

   quereux, 
  but 
  otherwise 
  it 
  agrees 
  too 
  closely 
  with 
  the 
  species 
  to 
  

   warrant 
  a 
  separation. 
  

  

  In 
  soft 
  clay, 
  Slaughter-Pen 
  bluff, 
  Shreveport, 
  La. 
  

   Toxylon 
  longipetiolatum, 
  «. 
  5/>. 
  Plate 
  48. 
  

  

  Leaf, 
  exclusive 
  of 
  the 
  petiole, 
  about 
  5% 
  in. 
  long, 
  slightly 
  inequilateral, 
  

   broadest 
  in 
  the 
  middle, 
  rounded 
  and 
  curving 
  in 
  a 
  bow 
  to 
  the 
  base, 
  some- 
  

   what 
  constricted 
  .to 
  a 
  short 
  point 
  at 
  the 
  apex 
  ; 
  margin 
  entire 
  ; 
  petiole 
  about 
  

   3 
  in. 
  long, 
  curved; 
  midrib 
  curved 
  ; 
  secondaries 
  simple, 
  sub-parallel, 
  curv- 
  

   ing 
  upward 
  and 
  approaching 
  each 
  other 
  near 
  the 
  margin, 
  all 
  but 
  the 
  lower 
  

   two 
  pairs 
  alternately 
  arranged. 
  

  

  In 
  red 
  sandstone, 
  ]^ 
  m. 
  above 
  Ooushatta, 
  La. 
  

  

  MAGNOLIACE^ 
  

   Mag:nolia 
  hilgardiana, 
  Plate 
  39. 
  

  

  Magnolia 
  hilgardiana 
  Lesq., 
  2d 
  Rept. 
  Geol. 
  Recon. 
  Ark., 
  p, 
  319, 
  

   pi. 
  6, 
  fig. 
  I. 
  

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

   Magnolia 
  lanceolata, 
  Plate 
  40. 
  

  

  Magnolia 
  lanceolata 
  Lesq., 
  Mem. 
  Mus. 
  Comp. 
  Zool., 
  vol. 
  6, 
  

   (1878), 
  No. 
  2, 
  p. 
  24, 
  pi. 
  6, 
  fig. 
  4. 
  

   Our 
  specimen 
  appears 
  to 
  be 
  merely 
  a 
  more 
  robust 
  one 
  of 
  this 
  

   species. 
  It 
  is 
  also 
  comparable 
  perhaps 
  with 
  M. 
  lo7igipetiolata 
  

   Etts., 
  as 
  figured 
  in 
  Foss. 
  Fl. 
  Bilin, 
  pi. 
  41, 
  figs. 
  8, 
  9. 
  

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

  

  