﻿98 
  

  

  H. 
  HICKS 
  ON 
  THE 
  LAND 
  PLANTS 
  EBOM 
  THE 
  

  

  Fig. 
  1. 
  — 
  Portion 
  of 
  dichotomously 
  branching 
  Stem 
  of 
  

   Berwynia 
  Carruthersi, 
  Hicks. 
  

  

  evident 
  they 
  were 
  vascular 
  plants 
  ; 
  for 
  not 
  only 
  do 
  the 
  larger 
  speci- 
  

   mens 
  exhibit 
  a 
  large 
  amount 
  of 
  carbon, 
  but 
  there 
  is 
  clear 
  evidence 
  

   in 
  some 
  of 
  the 
  specimens 
  of 
  the 
  presence 
  of 
  a 
  thick 
  vascular 
  axis 
  in 
  

   the 
  stem 
  and 
  of 
  a 
  considerable 
  cortical 
  covering. 
  In 
  one 
  speci- 
  

   men 
  (PI. 
  III. 
  fig. 
  2) 
  there 
  are 
  indications 
  of 
  the 
  passage 
  of 
  vas- 
  

   cular 
  bundles 
  from 
  the 
  axis 
  through 
  the 
  cortical 
  layer 
  as 
  if 
  to 
  

   leaves, 
  though 
  there 
  are 
  no 
  traces 
  of 
  the 
  leaves 
  themselves 
  or 
  of 
  the 
  

   scars 
  which 
  leaves 
  would 
  form 
  on 
  the 
  stem. 
  In 
  addition 
  to 
  these 
  

   characters, 
  the 
  dichotomous 
  division 
  of 
  the 
  stem 
  points 
  to 
  a 
  relation 
  

   with 
  the 
  arborescent 
  Lycopodiaceae 
  of 
  the 
  Devonian 
  and 
  Carbonife- 
  

  

  