﻿Balanced 
  Crosses 
  281 
  

  

  styled 
  species 
  which 
  was 
  seen 
  for 
  the 
  first 
  time 
  

   in 
  the 
  year 
  1889. 
  The 
  third 
  example 
  offered 
  

   is 
  a 
  hairless 
  variety 
  of 
  the 
  evening 
  campion, 
  

   Lychnis 
  vespertina, 
  found 
  the 
  same 
  year, 
  which 
  

   hitherto 
  had 
  not 
  been 
  observed. 
  

  

  For 
  these 
  three 
  cases 
  I 
  have 
  made 
  the 
  crosses 
  

   of 
  the 
  variety 
  with 
  the 
  parent-species, 
  and 
  in 
  

   each 
  case 
  the 
  hybrid 
  was 
  like 
  the 
  species, 
  and 
  

   not 
  like 
  the 
  variety. 
  Nor 
  was 
  it 
  intermediate. 
  

   Here 
  it 
  is 
  proved 
  that 
  the 
  older 
  character 
  dom- 
  

   inates 
  the 
  younger 
  one. 
  

  

  In 
  most 
  cases 
  of 
  wild, 
  and 
  of 
  garden-varieties, 
  

   the 
  relation 
  between 
  them 
  and 
  the 
  parent-spe- 
  

   cies 
  rests 
  upon 
  comparative 
  evidence. 
  Often 
  

   the 
  variety 
  is 
  known 
  to 
  be 
  younger, 
  in 
  other 
  

   cases 
  it 
  may 
  be 
  only 
  of 
  local 
  occurrence, 
  but 
  

   ordinarily 
  the 
  historic 
  facts 
  about 
  its 
  origin 
  

   have 
  never 
  been 
  known 
  or 
  have 
  long 
  since 
  been 
  

   forgotten. 
  

  

  The 
  easiest 
  and 
  most 
  widely 
  known 
  varietal 
  

   crosses 
  are 
  those 
  between 
  varieties 
  with 
  white 
  

   flowers 
  and 
  the 
  red- 
  or 
  blue-flowered 
  species. 
  

   Here 
  the 
  color 
  prevails 
  in 
  the 
  hybrid 
  over 
  the 
  

   lack 
  of 
  pigment, 
  and 
  as 
  a 
  rule 
  the 
  hybrid 
  is 
  as 
  

   deeply 
  tinted 
  as 
  the 
  species 
  itself, 
  and 
  cannot 
  be 
  

   distinguished 
  from 
  it, 
  without 
  an 
  investigation 
  

   of 
  its 
  hereditary 
  qualities. 
  Instances 
  may 
  be 
  

   cited 
  of 
  the 
  white 
  varieties 
  of 
  the 
  snapdragon, 
  

   of 
  the 
  red 
  clover, 
  the 
  long-spurred 
  violet 
  ( 
  Viola 
  

  

  