﻿16 
  

  

  INTRODUCTION 
  To 
  IJOTANY 
  

  

  >-/i,nr 
  ) 
  and 
  an 
  ovule 
  with 
  an 
  elongated 
  *////,- 
  (called 
  silk 
  in 
  

   corn), 
  which 
  gro\\s 
  atlaclicd 
  to 
  the 
  ovule's 
  tip. 
  The 
  tip 
  of 
  

   tht- 
  style, 
  >! 
  silk, 
  is 
  the 
  xt!</,,i<i, 
  which 
  is 
  the 
  roughened, 
  

   stirkv 
  surface 
  to 
  \\hieh 
  pollen 
  grains 
  may 
  adhere 
  when 
  they 
  

   fall 
  upon 
  it. 
  

  

  13. 
  The 
  seed. 
  From 
  a 
  pollen 
  grain 
  which 
  has 
  fallen 
  on 
  the 
  

   stigma 
  there 
  grows 
  down\\ard 
  through 
  the 
  style 
  a 
  very 
  small 
  

  

  I 
  to. 
  11. 
  T\vi) 
  linmrhrs 
  1'ripiii 
  the 
  tassel 
  

  

  staininate 
  flowers 
  

  

  t 
  ulie 
  ( 
  the 
  ])ollen 
  tnlie 
  ), 
  which 
  finally 
  reaches 
  the 
  interior 
  of 
  the 
  

   oMilc, 
  where 
  there 
  is 
  a 
  very 
  small 
  e^'. 
  This 
  egg 
  is 
  fertilized 
  

   liy 
  its 
  union 
  with 
  a 
  small, 
  v 
  l.ody 
  carried 
  hy 
  the 
  pollen 
  tube, 
  

   and 
  from 
  the 
  result 
  of 
  this 
  fert 
  ili/at 
  ion 
  a 
  new 
  emUryo 
  corn 
  

   plant 
  develops 
  within 
  the 
  ovule. 
  While 
  still 
  within 
  the 
  de- 
  

   veloping 
  ovule, 
  or 
  seed, 
  this 
  young 
  plant 
  produces 
  its 
  root 
  

   tip 
  and 
  stem 
  tip: 
  in 
  corn 
  and 
  other 
  grass 
  seeds 
  there 
  is 
  a 
  

   special 
  structure 
  ( 
  scutellum 
  ) 
  hy 
  means 
  of 
  which 
  the 
  embryo 
  

  

  