﻿-^^4 
  BOTANICAL 
  GAZE-rrE. 
  [May, 
  

  

  In 
  other 
  words, 
  the 
  anther 
  is 
  divided 
  into 
  two 
  prominent 
  

   halves 
  coripponding 
  to 
  the 
  wings 
  of 
  the 
  butterfly. 
  The 
  

   pollen 
  bearing 
  portion 
  is 
  in 
  the 
  form 
  of 
  a 
  verv 
  broad 
  horse- 
  

   shoe 
  while 
  all 
  between 
  is 
  cellular 
  tissue. 
  The 
  wall 
  enclos- 
  

  

  ) 
  

  

  i-nrr 
  f] 
  . 
  ""^ 
  "^^-^^^^ 
  ^^^^ 
  ^^ 
  cciiuiaf 
  tissuc. 
  1 
  lic 
  Wall 
  enclos 
  

   ng 
  tins 
  pohen 
  layer 
  often 
  separates 
  early 
  from 
  the 
  columella 
  

   hus 
  throwing 
  the 
  two 
  cavities 
  into 
  one, 
  while 
  the 
  valves 
  

   nemselves 
  do 
  not 
  separate 
  from 
  each 
  other 
  as 
  is 
  the 
  case 
  

  

  uith 
  those 
  which 
  dehisce 
  longitudinally. 
  

  

  tvvn 
  ni'^ 
  }''^^/^^ 
  ^i^^''^'^ 
  *« 
  «o 
  closely 
  that 
  if 
  we 
  select 
  the 
  

  

  clLT 
  r^^^^^' 
  ^^^^^'"^^ 
  ^^^"^^"^ 
  i" 
  ^i^e, 
  length 
  of 
  parts, 
  

   cohes 
  on, 
  dehiscence, 
  etc., 
  as 
  Solanum 
  Dulcamara 
  and 
  Ly- 
  

  

  ^TZ^""'^' 
  '\''''^^ 
  ^^ 
  ^^^^^ 
  that""a 
  sketch 
  of 
  the 
  cross 
  sec- 
  

   for 
  the 
  oth'e'r''' 
  "" 
  '"' 
  ^'^' 
  '' 
  '"'" 
  ^"'^''^" 
  ''^^"^°^^ 
  ^'^'^''^^^' 
  

  

  ilJlr^"^^ 
  ""^T' 
  ^^^^e^^er, 
  there 
  are 
  apparent 
  exceptions 
  

   f 
  one 
  stnr'??"' 
  P^^^^ling. 
  In 
  the 
  Daluras, 
  for 
  example, 
  

   he 
  deh^r 
  ^' 
  the 
  mature 
  stamen 
  he 
  is 
  s{l7prised 
  to 
  find 
  that 
  

   very 
  He 
  tn 
  ''''^'' 
  '' 
  ^"^'" 
  ^''' 
  ^"^ 
  spatula-shaped, 
  with 
  

   opening 
  Lv. 
  T^^^f 
  ' 
  ^"^^^^ 
  ^^"^^'^^ 
  ^^^e. 
  The 
  valves 
  in 
  

   SnIilZ 
  '''''''? 
  ^"^'^^'^^^ 
  ^"d 
  backward 
  until 
  they 
  meet 
  

   mo 
  evitV 
  "'"'^''f- 
  ^^"^ 
  ^^ 
  ^^^^- 
  I" 
  ^- 
  Tatula 
  "this 
  is 
  

  

  leavino- 
  ^Th:f 
  P^^'^^°P 
  ^^ 
  the 
  anther 
  is 
  without 
  color, 
  thus 
  

   sec 
  tofs 
  of 
  1 
  ''"P 
  '^ 
  '^'^ 
  ^^"t^^- 
  However, 
  by 
  making 
  

   We 
  coW 
  ]V?'f"^ 
  ?^^"^P 
  ^^"^^^^-^ 
  before 
  dehiscence 
  the 
  

   thifwaHs 
  which 
  T^ 
  P'"''^"^ 
  b^t 
  composed 
  of 
  cells 
  with 
  

   clry 
  up 
  to 
  o 
  ' 
  'ir 
  '"^ 
  ^"^P"^"^ 
  ^^ 
  ^^^ 
  atmosphere, 
  quickly 
  

  

  inaehirc;T:nthe?'7n1 
  '' 
  ^^^"^ 
  '^^"^^^ 
  Ltirel/absent 
  

   section 
  thron^h 
  t 
  " 
  ^^- 
  ^ 
  at 
  «- 
  is 
  shown 
  a 
  transverse 
  

  

  narrow 
  hoSoeor"^,""u^^' 
  "^ 
  ^ 
  ^^^tura 
  flower 
  with 
  the 
  

   the 
  thin- 
  V 
  SS!5 
  P^lle^-bearing 
  tissue 
  and 
  inside 
  of 
  that 
  

  

  At 
  

  

  valves 
  shrunlc.r. 
  1 
  ^^"'^'^^ 
  °^ 
  ^ 
  dehisced 
  anther 
  with 
  the 
  

   appearance 
  of 
  H- 
  ^'^'^^'^^^ 
  '^ 
  ^« 
  ^^ 
  P^^^ent 
  the 
  spatula 
  

  

  T^ 
  inX 
  t 
  r'^"' 
  ^^^"^ 
  ^°«k^d 
  ^t 
  side 
  wise. 
  

   beak-Hke 
  appea^afce 
  r'" 
  "' 
  ^^^^^"^"^ 
  rostratum, 
  with 
  its 
  

   not 
  exceed 
  them 
  in 
  tl' 
  "" 
  'i'^""^ 
  ^"^^"g 
  ^^s 
  fellows, 
  but 
  does 
  

   or 
  foui 
  ?me 
  W 
  " 
  '^^ 
  P^^^^^tion 
  of 
  pollen, 
  for 
  w'hile 
  three 
  

   narrow 
  curved 
  W? 
  '^'^ 
  °^^^^'^' 
  ^^^ 
  theci 
  are 
  reduced 
  to 
  

  

  mens, 
  upon 
  the 
  oH- 
  ^ 
  "5'''^^' 
  """'• 
  ^^^ 
  ^^"^^""^■>' 
  '''' 
  

  

  m 
  which 
  the 
  pollen 
  is 
  bo'ne' 
  P^^^'' 
  -^""'"^^"^^ 
  ^""'^^ 
  "'"^''f 
  

   tion 
  is 
  shown 
  at 
  Tin 
  fi 
  7 
  ^'"'"^ 
  stamen 
  in 
  cross-sec- 
  

  

  clinary 
  stamen 
  is 
  seen 
  af 
  '/' 
  ^ 
  ^ 
  similar 
  section 
  of 
  an 
  or- 
  

  

  o 
  

  

  ^ 
  

  

  I 
  

  

  F 
  

  

  

  #. 
  

  

  