﻿PALAEONTOLOGY 
  

  

  133 
  

  

  PLANTS 
  

  

  The 
  following 
  classification 
  will 
  give 
  a 
  general 
  idea 
  of 
  the 
  

   development 
  of 
  vegetable 
  life. 
  

  

  rT\' 
  ^ 
  1 
  J 
  f 
  Most 
  of 
  the 
  

  

  1 
  Dicotyledons 
  I 
  . 
  

  

  1 
  forest 
  trees 
  

  

  . 
  . 
  -n, 
  ] 
  and 
  shrubs, 
  

  

  Angiosperms 
  I 
  iixogens 
  x, 
  ^ 
  

  

  L 
  03/K> 
  asn^ 
  6tC« 
  

  

  4 
  Phanerogam 
  ia 
  

   or 
  

   Spermatophy 
  ta 
  } 
  

  

  < 
  

  

  Monocotyledons 
  [Palms 
  

   or 
  ^ 
  Lilies 
  

  

  . 
  Endogens 
  ^ 
  Grasses, 
  etc. 
  

  

  Gymnosperms 
  | 
  Conifers, 
  pine, 
  spruce, 
  etc. 
  

   i 
  Cy 
  cads 
  

  

  3 
  Acrogens 
  ( 
  Lyeopods 
  or 
  Club 
  mosses 
  

   •{ 
  Ferns 
  

  

  or 
  

  

  

  c3 
  

   • 
  i— 
  ( 
  

  

  s 
  

  

  el 
  

  

  Pteridophyta 
  ^Equisetae 
  or 
  Horsetails 
  

  

  2 
  Anogens 
  or 
  / 
  Mosses 
  

   .Bryophyta 
  ( 
  Liverworts 
  

  

  1 
  Thallogens 
  f 
  ^"^rigi 
  Mushrooms, 
  etc. 
  

   Qj. 
  J 
  Lichens 
  

  

  I 
  Thallophyta 
  ^ 
  Algae 
  l.^^^^ 
  

  

  >ms 
  

  

  This 
  clas'sification 
  is 
  not 
  now 
  used 
  in 
  the 
  more 
  modern 
  books 
  

   on 
  botany, 
  but 
  is 
  followed 
  in 
  most 
  of 
  the 
  text-books 
  of 
  geology. 
  

  

  