﻿122 
  

  

  Schaffner: 
  Diecious 
  nature 
  of 
  buffalo-grass 
  

  

  Pure 
  carpellaie 
  

  

  No. 
  of 
  patches 
  

  

  I 
  

   I 
  

  

  2 
  

  

  3 
  

  

  3 
  

  

  I 
  

  

  2 
  

   2 
  

  

  Diameter 
  

  

  10 
  ft, 
  

  

  8 
  " 
  

  

  7 
  

   6 
  

  

  S 
  

   4 
  

   3 
  

  

  2 
  

  

  n 
  

  

  it 
  

   it 
  

   it 
  

   tt 
  

  

  3 
  

  

  ti 
  

  

  I8 
  

  

  Pure 
  staminate 
  

  

  No. 
  of 
  patches 
  

  

  Diameter 
  

  

  I 
  

   2 
  

  

  3 
  

  

  2 
  

  

  3 
  

  

  2 
  

  

  5 
  

  

  2 
  

  

  2 
  

  

  12 
  ft. 
  

   10 
  *' 
  

  

  8 
  

  

  7 
  

   6 
  

  

  5 
  

  

  4 
  

  

  3 
  

   2 
  

  

  4< 
  

  

  i4 
  

   «4 
  

  

  23 
  

  

  Mixed 
  

  

  No. 
  of 
  patches 
  

  

  Diameter 
  

  

  *I 
  

   *I 
  

  

  I 
  

   *I 
  

  

  I 
  

   *I 
  

  

  I 
  

  

  I 
  

  

  12 
  tt. 
  

   10 
  " 
  

  

  9 
  

   8 
  

  

  7 
  

   6 
  

  

  4 
  

  

  2 
  

  

  i 
  I 
  

   it 
  

  

  « 
  < 
  

  

  4 
  < 
  

  

  8 
  

  

  * 
  Patches 
  marked 
  with 
  a 
  star 
  had 
  the 
  staminate 
  and 
  carpellate 
  inflorescences 
  in 
  

   distinct 
  areas. 
  

  

  Of 
  the 
  forty-nine 
  patches 
  found 
  in 
  this 
  field, 
  therefore, 
  forty- 
  

   one 
  were 
  pure 
  (eighteen 
  carpellate 
  and 
  twenty-three 
  staminate) 
  

   and 
  only 
  eight 
  were 
  mixed. 
  Of 
  the 
  mixed, 
  four 
  were 
  generally 
  

   commingled 
  and 
  four 
  had 
  the 
  carpellate 
  and 
  staminate 
  inflores- 
  

   cences 
  in 
  distinct 
  parts 
  of 
  the 
  patch. 
  Presumably 
  the 
  mixed 
  

   patches 
  originated 
  from 
  more 
  than 
  one 
  seed, 
  although 
  the 
  possi- 
  

   bility 
  remains 
  that 
  they 
  represent 
  the 
  vegetative 
  offshoots 
  of 
  a 
  

   monecious 
  organism. 
  

  

  5. 
  A 
  patch 
  of 
  mixed 
  stand 
  of 
  special 
  interest. 
  One 
  patch 
  was 
  

   of 
  unusual 
  character 
  and 
  deserves 
  special 
  consideration. 
  It 
  

   was 
  about 
  16 
  ft. 
  long 
  and 
  6 
  ft. 
  wide; 
  one 
  end, 
  about 
  5 
  ft., 
  was 
  pure 
  

   staminate; 
  the 
  middle, 
  about 
  5 
  ft., 
  was 
  pure 
  carpellate; 
  and 
  the 
  

   other 
  end, 
  about 
  6 
  ft., 
  was 
  pure 
  staminate. 
  On 
  either 
  side 
  of 
  

   the 
  carpellate 
  patch, 
  where 
  it 
  bordered 
  on 
  the 
  staminate 
  ends, 
  

   there 
  was 
  a 
  mixed 
  zone 
  of 
  staminate 
  and 
  carpellate 
  inflorescences 
  

   about 
  a 
  foot 
  wide. 
  This 
  patch 
  has 
  evidently 
  originated 
  from 
  

   three 
  separate 
  patches 
  side 
  by 
  side, 
  which 
  have 
  but 
  recently 
  been 
  

   united 
  by 
  vegetative 
  expansion. 
  

  

  Experimental 
  results 
  

  

  Previous 
  to 
  the 
  field 
  observations 
  taken 
  the 
  past 
  summer, 
  

   as 
  stated 
  above, 
  seed 
  was 
  collected 
  by 
  the 
  writer 
  during 
  the 
  

  

  Kan 
  

  

  summer 
  of 
  191 
  7, 
  in 
  Cla> 
  

  

  fully 
  prepared 
  so 
  that 
  not 
  more 
  than 
  one 
  grain 
  would 
  be 
  in 
  a 
  

  

  "husk," 
  was 
  planted 
  in 
  the 
  autumn 
  on 
  shallow 
  benches 
  in 
  the 
  

  

  