﻿78 
  

  

  Miller: 
  The 
  wood 
  of 
  Machaerium 
  Whitfordii 
  

  

  ^ 
  

  

  chymatous 
  ground 
  mass 
  

  

  rming 
  conspicuous 
  masses 
  

  

  m 
  

  

  sometimes 
  dividine: 
  into 
  two 
  or 
  t^ 
  

  

  lim 
  

  

  See 
  Fig. 
  i 
  . 
  

  

  The 
  D^ 
  

  

  renchyma 
  strands 
  are 
  0.20-0.21 
  mm. 
  in 
  length, 
  or 
  

   same 
  as 
  that 
  of 
  the 
  vessel 
  segments 
  with 
  which 
  they 
  

  

  J-L 
  

  

  @®wwe® 
  

  

  «' 
  

  

  16^ 
  

  

  

  ff 
  4 
  

  

  l©e®eeeer 
  

  

  

  ^^^e©e 
  

  

  

  ^@@©e©^^%©© 
  

  

  8u 
  

  

  \^smm 
  

  

  « 
  

  

  5 
  

  

  ^ 
  » 
  v/.V 
  

  

  Fig. 
  3. 
  Diagram 
  of 
  pits 
  between 
  vessels: 
  c. 
  surface 
  view, 
  showing 
  rounded 
  

  

  border, 
  horizontal 
  elongated 
  mouth, 
  and 
  

  

  -like 
  perforations 
  of 
  pit 
  membrane; 
  

  

  narrow 
  

  

  canal 
  

  

  Fig. 
  4. 
  Various 
  forms 
  of 
  wood 
  fibers 
  showing 
  simple 
  pits, 
  which 
  are 
  often 
  aggre- 
  

  

  gated 
  at 
  the 
  shoulders 
  of 
  the 
  fibers. 
  

  

  Fig. 
  s. 
  

  

  narrow 
  

  

  and 
  

  

  Fig. 
  7. 
  

  

  jh 
  terminal 
  

   chambered 
  

  

  chambered 
  

  

  covering 
  

  

  Fig. 
  8. 
  Radial 
  

  

  pitting. 
  The 
  pits 
  into 
  the 
  vessel 
  are 
  half-bordered 
  and 
  show 
  sieve-like 
  structure 
  

  

  are 
  in 
  seriatlon. 
  

   though 
  not 
  infre 
  

   are 
  not 
  in 
  se- 
  

  

  tv^ 
  

  

  ondary 
  

  

  (Fig. 
  6). 
  The 
  average 
  width 
  

  

  ma 
  

  

  is 
  2.5 
  /i 
  thick 
  and 
  abundantly 
  pitted. 
  

  

  