﻿Smithsonian 
  Report, 
  1943. 
  — 
  Cook 
  

  

  Plate 
  1 
  1 
  

  

  Modified 
  Branching 
  of 
  Hevea 
  Trees. 
  

  

  Left, 
  an 
  old 
  Hevea 
  stump 
  in 
  Haiti 
  sprouting 
  profusely, 
  although 
  uninjured 
  trees 
  produce 
  no 
  branches 
  near 
  

   the 
  ground. 
  The 
  sprouts 
  show 
  the 
  normal 
  habit 
  of 
  intermittent 
  growth 
  with 
  several 
  short 
  stem 
  sections 
  

   forming 
  a 
  "flush" 
  of 
  new 
  leaves, 
  supported 
  by 
  a 
  series 
  of 
  leafless 
  stem 
  sections. 
  Right, 
  a 
  young 
  tree 
  in 
  

   the 
  Panama 
  Canal 
  Zone, 
  20 
  months 
  old 
  in 
  April 
  1925, 
  with 
  scattered 
  branches 
  a 
  few 
  feet 
  from 
  the 
  ground. 
  

  

  