﻿Mutations 
  in 
  Horticulture 
  629 
  

  

  ably 
  so 
  since 
  a 
  pink 
  variety 
  would 
  without 
  doubt 
  

   have 
  a 
  certain 
  horticultural 
  value 
  and 
  would 
  

   have 
  been 
  preserved 
  if 
  it 
  had 
  occurred. 
  But 
  as 
  

   far 
  as 
  I 
  have 
  been 
  able 
  to 
  ascertain, 
  it 
  is 
  as 
  yet 
  

   unknown, 
  nor 
  has 
  it 
  been 
  described 
  until 
  to-day. 
  

   Summing 
  up 
  the 
  results 
  of 
  this 
  long, 
  though 
  

   very 
  incomplete, 
  list 
  of 
  horticultural 
  novelties 
  

   with 
  a 
  more 
  or 
  less 
  well-known 
  origin, 
  we 
  see 
  

   that 
  sudden 
  appearances 
  are 
  the 
  rule. 
  Having 
  

   once 
  sprung 
  into 
  existence 
  the 
  new 
  varieties 
  are 
  

   ordinarily 
  constant, 
  except 
  as 
  affected 
  by 
  

   vicinism. 
  Details 
  concerning 
  the 
  process 
  are 
  

   mostly 
  unavailable 
  or 
  at 
  least 
  are 
  of 
  very 
  doubt- 
  

   ful 
  value. 
  And 
  to 
  this 
  it 
  should 
  be 
  added 
  that 
  

   really 
  progressive 
  mutations 
  have 
  hardly 
  been 
  

   observed 
  in 
  horticulture. 
  Hence 
  the 
  theoretical 
  

   value 
  of 
  the 
  facts 
  is 
  far 
  less 
  than 
  might 
  have 
  

   been 
  expected. 
  

  

  