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  Ever-sporting 
  Varieties 
  

  

  ties 
  regularly 
  and 
  abundantly. 
  In 
  this 
  respect 
  

   they 
  are 
  however 
  very 
  variable 
  and 
  dependent 
  

   on 
  external 
  circumstances. 
  Such 
  a 
  regularity 
  

   is 
  not 
  met 
  with 
  in 
  other 
  instances. 
  Often 
  pedi- 
  

   gree-experiments 
  lead 
  to 
  poor 
  races, 
  betraying 
  

   their 
  tendency 
  to 
  deviate 
  only 
  from 
  time 
  to 
  time 
  

   and 
  in 
  rare 
  cases. 
  Such 
  instances 
  constitute 
  

   what 
  we 
  have 
  called 
  in 
  a 
  former 
  lecture, 
  * 
  * 
  half- 
  

   races," 
  and 
  their 
  occurrence 
  indicates 
  that 
  the 
  

   casual 
  observation 
  of 
  an 
  anomaly 
  is 
  not 
  in 
  itself 
  

   adequate 
  to 
  give 
  an 
  opinion 
  as 
  to 
  the 
  chance 
  of 
  

   repetition 
  in 
  sowing 
  experiments. 
  A 
  large 
  

   number 
  of 
  species 
  seem 
  to 
  belong 
  to 
  this 
  case, 
  

   and 
  their 
  names 
  mav 
  be 
  found 
  in 
  the 
  above 
  

  

  V 
  

  

  mentioned 
  work 
  bv 
  Masters 
  and 
  elsewhere. 
  

  

  

  

  But 
  no 
  effort 
  has 
  yet 
  been 
  made 
  to 
  separate 
  

   thoroughly 
  the 
  pistilloid 
  half-races 
  from 
  the 
  

   corresponding 
  ever-sporting 
  varieties. 
  Some 
  

   plants 
  are 
  recorded 
  as 
  being 
  more 
  liable 
  to 
  this 
  

   peculiarity 
  than 
  others. 
  

  

  Stamens 
  are 
  sometimes 
  replaced 
  by 
  open 
  

   carpels 
  with 
  naked 
  ovules 
  arising 
  from 
  their 
  

   edges 
  and 
  even 
  from 
  their 
  whole 
  inner 
  sur- 
  

   faces. 
  This 
  may 
  be 
  seen 
  in 
  distinct 
  strains 
  of 
  

   the 
  cultivated 
  bulbous 
  Begonia, 
  and 
  more 
  rarely 
  

   in 
  primroses. 
  Here 
  the 
  apex 
  of 
  the 
  carpellary 
  

   leaf 
  is 
  sometimes 
  drawn 
  out 
  into 
  a 
  long 
  style, 
  

   terminated 
  by 
  a 
  flattened 
  spatulate 
  stigma. 
  

  

  The 
  pistillody 
  of 
  the 
  stamens 
  is 
  frequently 
  

  

  