﻿Origin 
  of 
  Peloric 
  Toadflax 
  485 
  

  

  equal 
  ones, 
  and 
  a 
  corolla 
  with 
  five 
  equal 
  seg- 
  

   ments 
  instead 
  of 
  an 
  upper 
  and 
  a 
  lower 
  lip. 
  It 
  

   shows 
  the 
  peloric 
  condition 
  in 
  all 
  of 
  its 
  flowers 
  

   and 
  is 
  often 
  combined 
  with 
  a 
  small 
  increase 
  

   of 
  the 
  number 
  of 
  the 
  parts 
  of 
  the 
  whorls. 
  

   It 
  is 
  for 
  sale 
  under 
  the 
  name 
  of 
  erecta, 
  and 
  

   may 
  be 
  had 
  in 
  a 
  wide 
  range 
  of 
  color-types. 
  It 
  

   seems 
  to 
  be 
  quite 
  constant 
  from 
  seed. 
  

  

  Many 
  other 
  instances 
  of 
  peloric 
  flowers 
  are 
  

   on 
  record. 
  Indian 
  cress 
  or 
  Tropaeolum 
  majus 
  

   loses 
  the 
  spur 
  in 
  some 
  double 
  varieties 
  and 
  

   with 
  it 
  most 
  of 
  its 
  symmetrical 
  structure; 
  it 
  

   seems 
  to 
  be 
  considered 
  justly 
  as 
  a 
  peloric 
  mal- 
  

   formation. 
  Other 
  species 
  produce 
  such 
  anom- 
  

   alies 
  only 
  from 
  time 
  to 
  time 
  and 
  nothing 
  is 
  

   known 
  about 
  their 
  hereditary 
  tendency. 
  One 
  

   of 
  the 
  most 
  curious 
  instances 
  is 
  the 
  terminal 
  

   flower 
  of 
  the 
  raceme 
  of 
  the 
  common 
  laburnum, 
  

   which 
  loses 
  its 
  whole 
  papilionaceous 
  character 
  

   and 
  becomes 
  as 
  regularly 
  quinate 
  as 
  a 
  common 
  

   buttercup. 
  

  

  Some 
  families 
  are 
  more 
  liable 
  to 
  pelorism 
  

   than 
  others. 
  Obviously 
  all 
  the 
  groups, 
  the 
  

   flowers 
  of 
  which 
  are 
  not 
  symmetrical, 
  are 
  to 
  be 
  

   excluded. 
  But 
  then 
  we 
  find 
  that 
  labiates 
  and 
  

   their 
  allies 
  among 
  the 
  dicotyledonous 
  plants, 
  

   and 
  orchids 
  among 
  the 
  monocotyledonous 
  ones 
  

   are 
  especially 
  subjected 
  to 
  this 
  alteration. 
  In 
  

   both 
  groups 
  many 
  genera 
  and 
  a 
  long 
  list 
  of 
  spe- 
  

  

  