﻿124 
  SCHAtFNER: 
  DiECIOUS 
  NATURE 
  OF 
  BUFFALO-GRASS 
  

  

  unless 
  especial 
  care 
  was 
  taken 
  to 
  separate 
  the 
  individual 
  grains 
  

   from 
  the 
  hardened 
  glumes. 
  Because 
  of 
  the 
  rapidity 
  of 
  growth 
  and 
  

   the 
  great 
  length 
  of 
  the 
  stolons 
  one 
  can 
  also 
  readily 
  make 
  mistakes 
  

   as 
  to 
  the 
  Hmits 
  or 
  origin 
  of 
  individuals 
  in 
  the 
  field. 
  There 
  is 
  

  

  * 
  

  

  nothing 
  in 
  Plank's 
  account 
  which 
  is 
  entirely 
  conclusive 
  as 
  to 
  the 
  

   nature 
  of 
  the 
  plants 
  he 
  observed. 
  The 
  very 
  fact 
  that 
  it 
  is 
  stated 
  

   that 
  each 
  stolon 
  produces 
  its 
  own 
  kind 
  would 
  in 
  itself 
  throw 
  doubt 
  

  

  T 
  

  

  on 
  the 
  supposition 
  that 
  the 
  plants 
  observed 
  were 
  monecious. 
  

   Plank 
  made 
  the 
  statement, 
  "there 
  are 
  probably 
  a 
  thousand 
  

   individuals 
  of 
  the 
  staminate 
  form 
  to 
  one 
  of 
  the 
  pistillate." 
  This 
  

   is 
  not 
  true 
  of 
  the 
  seedlings, 
  which 
  according 
  to 
  my 
  experiments 
  

   and 
  observations 
  are 
  about 
  equally 
  divided 
  into 
  staminate 
  and 
  

   carpellate 
  individuals. 
  In 
  the 
  field 
  the 
  one 
  kind 
  of 
  inflorescence 
  

   is 
  about 
  as 
  abundant 
  as 
  the 
  other. 
  By 
  superficial 
  observation 
  

   one 
  might, 
  however, 
  get 
  the 
  notion 
  that 
  the 
  staminate 
  inflores- 
  

   cences 
  were 
  greatly 
  in 
  the 
  majority, 
  since 
  the 
  staminate 
  stalks 
  

   are 
  comparatively 
  tall 
  and 
  conspicuous 
  while 
  the 
  carpellate 
  are 
  

   short 
  and 
  usually 
  hidden 
  among 
  the 
  leaf 
  blades. 
  In 
  walking 
  over 
  

   a 
  large 
  patch 
  of 
  the 
  grass, 
  one 
  might 
  see 
  very 
  few 
  carpellate 
  in- 
  

   florescences 
  unless 
  he 
  got 
  down 
  on 
  his 
  hands 
  and 
  knees, 
  es- 
  

   pecially 
  if 
  the 
  grass 
  had 
  not 
  been 
  pastured. 
  The 
  buffalo-grass 
  

   is 
  holding 
  its 
  own 
  well 
  under 
  civilized 
  conditions 
  and 
  toward 
  its 
  

  

  r 
  

  

  eastern 
  limit 
  is 
  spreading 
  in 
  the 
  pastures 
  and 
  abandoned 
  fields 
  

   because 
  its 
  strongest 
  competitors, 
  Andropogon 
  scopariiis 
  and 
  

   A.fnrcatus, 
  are 
  much 
  more 
  subject 
  to 
  destruction 
  through 
  grazing 
  

   and 
  tramping 
  of 
  live 
  stock. 
  

  

  