﻿New 
  Species 
  of 
  Oenothera 
  529 
  

  

  instead 
  of 
  obcordate. 
  This 
  shape 
  is 
  often 
  the 
  

   most 
  easily 
  recognized 
  and 
  most 
  striking 
  mark 
  

   of 
  the 
  variety. 
  In 
  respect 
  to 
  the 
  reproductive 
  

   organs, 
  the 
  fertility 
  and 
  abundance 
  of 
  good 
  seed, 
  

   the 
  laevi 
  folia 
  is 
  by 
  no 
  means 
  inferior 
  or 
  superior 
  

   to 
  the 
  original 
  species. 
  

  

  0. 
  brevistylis, 
  or 
  the 
  short-styled 
  evening- 
  

   primrose, 
  is 
  the 
  most 
  curious 
  of 
  all 
  my 
  new 
  

   forms. 
  It 
  has 
  very 
  short 
  styles, 
  which 
  bring 
  

   the 
  stigmas 
  only 
  up 
  to 
  the 
  throat 
  of 
  the 
  calyx- 
  

   tube, 
  instead 
  of 
  upwards 
  of 
  the 
  anthers. 
  The 
  

   stigmas 
  themselves 
  are 
  of 
  a 
  different 
  shape, 
  

   more 
  flattened 
  and 
  not 
  cylindrical. 
  The 
  pollen 
  

   falls 
  from 
  the 
  anthers 
  abundantly 
  on 
  them, 
  and 
  

   germinates 
  in 
  the 
  ordinary 
  manner. 
  

  

  The 
  ovary 
  which 
  in 
  lamarckiana 
  and 
  in 
  

   all 
  other 
  new 
  forms 
  is 
  wholly 
  underneath 
  the 
  

   calyx-tube, 
  is 
  here 
  only 
  partially 
  so. 
  This 
  

   tube 
  is 
  inserted 
  at 
  some 
  distance 
  under 
  its 
  

   summit. 
  The 
  insertion 
  divides 
  the 
  ovary 
  into 
  

   two 
  parts 
  : 
  an 
  upper 
  and 
  a 
  lower 
  one. 
  The 
  up- 
  

   per 
  part 
  is 
  much 
  reduced 
  in 
  breadth 
  and 
  some- 
  

   what 
  attenuated, 
  simulating 
  a 
  prolongation 
  of 
  

   the 
  base 
  of 
  the 
  style. 
  The 
  lower 
  part 
  is 
  also 
  

   reduced, 
  but 
  in 
  another 
  manner. 
  At 
  the 
  time 
  

   of 
  flowering 
  it 
  is 
  like 
  the 
  ovary 
  of 
  lamarcMana, 
  

   neither 
  smaller 
  nor 
  larger. 
  But 
  it 
  is 
  reached 
  

   by 
  only 
  a 
  very 
  few 
  pollen-tubes, 
  and 
  is 
  there- 
  

   fore 
  always 
  incompletely 
  fertilized. 
  It 
  does 
  

  

  