﻿470 
  Mutations 
  

  

  selected 
  seeds 
  in 
  a 
  pan 
  in 
  the 
  glasshouse 
  of 
  my 
  

   laboratory 
  and 
  planted 
  them 
  out 
  as 
  soon 
  as 
  the 
  

   young 
  stems 
  had 
  reached 
  a 
  length 
  of 
  some 
  few 
  

   centimeters. 
  Each 
  seedling 
  was 
  put 
  in 
  a 
  sepa- 
  

   rate 
  pot, 
  in 
  heavily 
  manured 
  soil. 
  The 
  pots 
  

   were 
  kept 
  under 
  glass 
  until 
  the 
  beginning 
  of 
  

   June, 
  and 
  the 
  young 
  plants 
  produced 
  during 
  

   this 
  period 
  a 
  number 
  of 
  secondary 
  stems 
  from 
  

   the 
  curious 
  hypocotylous 
  buds 
  which 
  are 
  so 
  

   characteristic 
  of 
  the 
  species. 
  These 
  stems 
  

   grew 
  rapidly 
  and 
  as 
  soon 
  as 
  they 
  were 
  

   strong 
  enough, 
  the 
  plants 
  were 
  put 
  into 
  

   the 
  beds. 
  They 
  all, 
  at 
  least 
  nearly 
  all, 
  

   some 
  twenty 
  specimens, 
  flowered 
  in 
  the 
  follow- 
  

   ing 
  month. 
  

  

  I 
  observed 
  only 
  one 
  peloric 
  flower 
  among 
  the 
  

   large 
  number 
  present. 
  I 
  took 
  the 
  plant 
  bearing 
  

   this 
  flower 
  and 
  one 
  more 
  for 
  the 
  culture 
  of 
  the 
  

   following 
  year, 
  and 
  destroyed 
  all 
  others. 
  These 
  

   two 
  plants 
  grew 
  on 
  the 
  same 
  spot, 
  and 
  were 
  al- 
  

   lowed 
  to 
  fertilize 
  each 
  other 
  by 
  the 
  agency 
  of 
  

   the 
  bees, 
  but 
  were 
  kept 
  isolated 
  from 
  any 
  other 
  

   congener. 
  They 
  flowered 
  abundantly, 
  but 
  pro- 
  

   duced 
  only 
  one-spurred 
  bilabiate 
  flowers 
  during 
  

   the 
  whole 
  summer. 
  They 
  matured 
  more 
  than 
  

   10 
  cu. 
  cm. 
  of 
  seeds. 
  

  

  It 
  is 
  from 
  this 
  pair 
  of 
  plants 
  that 
  my 
  peloric 
  

   race 
  has 
  sprung. 
  And 
  as 
  they 
  are 
  the 
  ancestors 
  

   of 
  the 
  first 
  closely 
  observed 
  case 
  of 
  peloric 
  mu- 
  

  

  