﻿100 
  H. 
  HICKS 
  ON 
  THE 
  LAND 
  FLANTS 
  FKOM 
  THE 
  

  

  give 
  a 
  new 
  generic 
  name 
  ; 
  and 
  for 
  this 
  purpose 
  Berwynia, 
  after 
  the 
  

   Berwyn 
  Hills, 
  in 
  which 
  the 
  Pen-y-glog 
  quarry 
  is 
  situated, 
  seems 
  an 
  

   appropriate 
  one. 
  I 
  propose 
  to 
  call 
  the 
  species 
  Carruthersi, 
  after 
  

   Mr. 
  Carruthers, 
  to 
  whom 
  I 
  am 
  indebted 
  for 
  much 
  kind 
  assistance 
  

   in 
  my 
  endeavours 
  to 
  make 
  out 
  these 
  early 
  plant-remains. 
  

  

  It 
  is 
  possible 
  that 
  the 
  spores 
  referred 
  to 
  in 
  my 
  former 
  paper, 
  as 
  

   occurring 
  in 
  considerable 
  abundance 
  in 
  the 
  overlying 
  grits 
  and 
  shales, 
  

   which 
  Mr. 
  Carruthers 
  in 
  his 
  note 
  mentioned 
  as 
  agreeing 
  " 
  with 
  the 
  

   forms 
  of 
  the 
  microspores 
  of 
  Lycopodiaceas, 
  both 
  recent 
  and 
  fossil," 
  

   may 
  also 
  belong 
  to 
  the 
  plant 
  now 
  described, 
  as 
  fragments 
  of 
  stems 
  

   of 
  a 
  similar 
  nature 
  to 
  those 
  found 
  in 
  the 
  slates 
  occur 
  also 
  in 
  some 
  

   of 
  the 
  overlying 
  beds 
  in 
  association 
  with 
  these 
  spores. 
  

  

  The 
  specimen 
  (fig. 
  4, 
  PI. 
  III.) 
  which 
  I 
  found 
  along 
  with 
  the 
  

   plants 
  in 
  one 
  of 
  the 
  bands 
  of 
  shale 
  between 
  the 
  grits 
  at 
  the 
  top 
  of 
  

   the 
  quarry, 
  resembles 
  so 
  strongly 
  the 
  fossil 
  called 
  Parka 
  decipiens, 
  

   found 
  in 
  the 
  Old 
  Red 
  Sandstone 
  in 
  Scotland 
  and 
  elsewhere, 
  that 
  one 
  

   is 
  tempted 
  to 
  seek 
  for 
  some 
  relationship 
  between 
  them. 
  If, 
  however, 
  

   the 
  latter 
  are, 
  as 
  has 
  been 
  generally 
  supposed 
  of 
  late 
  years, 
  the 
  eggs 
  

   of 
  large 
  Crustacea 
  (Pterygotus 
  <fcc), 
  this 
  resemblance 
  must 
  be 
  purely 
  

   accidental, 
  since 
  all 
  the 
  evidence 
  that 
  I 
  have 
  been 
  able 
  to 
  obtain 
  at 
  

   Pen-y-glog 
  goes 
  to 
  prove 
  that 
  the 
  specimens 
  found 
  there 
  (and 
  they 
  

   are 
  abundant 
  in 
  some 
  of 
  the 
  beds) 
  must 
  be 
  seed-vessels 
  of 
  some 
  plant, 
  

   and 
  must, 
  moreover, 
  have 
  drifted 
  from 
  some 
  neighbouring 
  land 
  into 
  

   their 
  present 
  position 
  along 
  with 
  the 
  other 
  plant-remains. 
  No 
  

   Crustacea 
  have 
  as 
  yet 
  been 
  found 
  with 
  them 
  ; 
  and 
  the 
  large 
  forms 
  

   allied 
  to 
  Pterygotus 
  have 
  not 
  been 
  discovered 
  anywhere 
  in 
  Wales, 
  

   and 
  probably 
  not 
  elsewhere 
  in 
  beds 
  at 
  so 
  low 
  a 
  geological 
  horizon. 
  

   Moreover, 
  in 
  beds 
  where 
  other 
  Crustacea 
  (Trilobites 
  &c.) 
  occur 
  in 
  the 
  

   greatest 
  abundance 
  these 
  specimens 
  are 
  seldom 
  if 
  ever 
  found. 
  On 
  

   the 
  other 
  hand, 
  they 
  are 
  invariably 
  accompanied 
  by 
  plant-remains 
  in 
  

   all 
  the 
  beds 
  in 
  which 
  they 
  have 
  been 
  discovered. 
  

  

  Description 
  of 
  genus 
  and 
  species 
  : 
  — 
  

  

  Bekwynia 
  Cakkutheksi, 
  gen. 
  and 
  sp. 
  n. 
  

  

  Apparently 
  a 
  Lycopodiaceous 
  plant 
  of 
  large 
  size. 
  Stem 
  thick, 
  

   branching 
  dichotomously 
  (see 
  fig. 
  p. 
  98), 
  surface 
  slightly 
  furrowed 
  

   longitudinally, 
  decorticated 
  specimens 
  showing 
  interrupted 
  markings 
  

   more 
  or 
  less 
  spirally 
  arranged 
  around 
  the 
  stem 
  ; 
  branches 
  long, 
  and 
  

   diminishing 
  very 
  gradually 
  in 
  their 
  width. 
  Root 
  (probably 
  of 
  this 
  

   plant) 
  marked 
  freely, 
  but 
  rather 
  irregularly, 
  with 
  slightly 
  raised 
  

   rounded 
  scars, 
  having 
  in 
  their 
  centre 
  a 
  small 
  elevated 
  point, 
  pro- 
  

   bably 
  the 
  spot 
  through 
  which 
  the 
  vascular 
  bundle 
  passed. 
  The 
  scars 
  

   are 
  about 
  y 
  1 
  ^ 
  of 
  an 
  inch 
  in 
  size, 
  and 
  average 
  about 
  20 
  to 
  the 
  square 
  

   inch 
  of 
  surface, 
  the 
  spaces 
  between 
  being 
  slightly 
  wrinkled. 
  Rootlets 
  

   slender 
  and 
  tapering. 
  

  

  