﻿66 
  Berry 
  — 
  Cretaceous 
  Hymencea 
  from 
  Alabama. 
  

  

  lands, 
  nor 
  if 
  it 
  once 
  inhabited 
  Asia 
  is 
  it 
  easy 
  to 
  under- 
  

   stand 
  why 
  it 
  left 
  no 
  descendants 
  in 
  the 
  Oriental 
  tropics. 
  

  

  About 
  one 
  per 
  cent 
  of 
  the 
  sea 
  drift 
  stranded 
  on 
  Turks 
  

   Island 
  consists, 
  according 
  to 
  Guppy, 
  of 
  the 
  buoyant 
  pods 
  

   of 
  Hymencea 
  courbaril, 
  whose 
  widespread 
  occurrence 
  in 
  

   the 
  Antilles 
  may 
  be 
  thus 
  explained. 
  So 
  far 
  as 
  I 
  know, 
  no 
  

   fossil 
  pods 
  recognized 
  as 
  those 
  of 
  Hymenaea 
  have 
  been 
  

   described, 
  the 
  records 
  being 
  based 
  entirely 
  upon 
  occur- 
  

   rences 
  of 
  the 
  leaves. 
  Although 
  the 
  bifoliate 
  habit 
  which 
  

   characterizes 
  the 
  leaves 
  of 
  Hymenaea 
  is 
  shared 
  by 
  forms 
  

   belonging 
  to 
  other 
  genera 
  of 
  the 
  leguminous 
  alliance, 
  

   such 
  as 
  Bauhinia, 
  Leucaena, 
  Cassia, 
  Acacia, 
  Cynometra, 
  

   Inga, 
  etc., 
  all 
  have 
  an 
  ensemble 
  of 
  habit, 
  form 
  and 
  vena- 
  

   tion 
  that 
  permit 
  them 
  to 
  be 
  differentiated 
  — 
  at 
  least 
  in 
  

   typical 
  cases. 
  I 
  regard 
  as 
  such 
  a 
  typical 
  case 
  the 
  fol- 
  

   lowing 
  new 
  species 
  based 
  upon 
  materials 
  collected 
  by 
  me 
  

   in 
  the 
  clays 
  of 
  the 
  Tuscaloosa 
  formation 
  at 
  Shirley 
  s 
  Mill 
  

   in 
  Fayette 
  County, 
  Alabama, 
  and 
  which 
  I 
  consider 
  to 
  rep- 
  

   resent 
  the 
  late 
  Cenomanian 
  or 
  early 
  Turonian 
  of 
  the 
  

   European 
  section. 
  This 
  new 
  species 
  may 
  be 
  described 
  as 
  

   follows 
  : 
  

  

  Hymencea 
  fayettensis 
  sp. 
  nov. 
  

  

  Leaves 
  with 
  a 
  short 
  stout 
  petiole, 
  bifoliate, 
  consisting 
  

   of 
  two 
  ovate-lanceolate, 
  entire 
  margined 
  leaflets. 
  Leaf- 
  

   lets 
  sessile, 
  with 
  a 
  markedly 
  inequilateral, 
  cuneate 
  or 
  

   slightly 
  decurrent 
  base, 
  but 
  not 
  noticeable 
  inequilateral 
  

   above 
  the 
  base. 
  Length 
  6-5 
  cm. 
  to 
  8 
  cm. 
  Maximum 
  

   width, 
  in 
  the 
  lower 
  half 
  of 
  the 
  leaflets, 
  2 
  cm. 
  to 
  3 
  cm. 
  

   Tips 
  extended, 
  bluntly 
  pointed. 
  Midribs 
  stout 
  proximad, 
  

   becoming 
  thin 
  distad. 
  Secondaries 
  thin, 
  numerous, 
  

   camptodrome 
  ; 
  seven 
  or 
  eight 
  sub-opposite 
  to 
  alternate 
  

   pairs 
  in 
  each 
  leaflet, 
  branching 
  from 
  the 
  midrib 
  at 
  angles 
  

   ranging 
  from 
  30 
  to 
  50 
  degrees, 
  curving 
  upward, 
  the 
  

   proximal 
  ones 
  quite 
  ascending, 
  while 
  the 
  angles 
  of 
  

   divergence 
  become 
  progressively 
  greater 
  distad. 
  Ter- 
  

   tiaries 
  numerous, 
  very 
  fine, 
  transverse 
  and 
  more 
  or 
  less 
  

   immersed 
  in 
  the 
  leaf 
  substance. 
  Texture 
  sub-coriaceous, 
  

   but 
  less 
  so 
  than 
  in 
  most 
  of 
  the 
  recent 
  species. 
  

  

  This 
  is 
  a 
  well-defined 
  species 
  of 
  this 
  interesting 
  genus 
  

   of 
  Caesalpiniacese 
  and 
  quite 
  distinct 
  from 
  previously 
  

   described 
  forms. 
  It 
  is 
  most 
  similar 
  to 
  Hymencea 
  primi- 
  

   genia 
  Saporta, 
  described 
  by 
  Saporta 
  2 
  and 
  Velenovsky 
  3 
  

  

  'Saporta, 
  Monde 
  des 
  Plantes, 
  1879, 
  p. 
  199, 
  fig. 
  2. 
  

  

  "Volenovsky, 
  Fl. 
  Bohm. 
  Kreideform., 
  pt. 
  3, 
  1884, 
  p. 
  9, 
  pi. 
  -5, 
  fig. 
  4; 
  pi. 
  

   6, 
  figs. 
  1-4. 
  

  

  