﻿Origin 
  of 
  Wild 
  Species 
  591 
  

  

  swarm 
  of 
  elementary 
  species, 
  while 
  the 
  original 
  

   strain 
  might 
  even 
  now 
  be 
  still 
  in 
  a 
  condition 
  of 
  

   mutability. 
  A 
  close 
  scrutiny 
  in 
  the 
  native 
  re- 
  

   gion 
  is 
  likely 
  to 
  reveal 
  many 
  unexpected 
  

   features. 
  

  

  A 
  very 
  interesting 
  novelty 
  has 
  already 
  been 
  

   described 
  in 
  a 
  former 
  lecture. 
  It 
  is 
  the 
  Xan- 
  

   thiiim 
  wootoni, 
  discovered 
  in 
  the 
  region 
  about 
  

   Las 
  Vegas, 
  New 
  Mexico, 
  by 
  T. 
  D. 
  A. 
  Cockerell. 
  

   It 
  is 
  similar 
  in 
  all 
  respects 
  to 
  X. 
  commune, 
  but 
  

   the 
  burrs 
  are 
  more 
  slender 
  and 
  the 
  prickles 
  

   much 
  less 
  numerous, 
  and 
  mostly 
  stouter 
  at 
  their 
  

  

  */ 
  

  

  base. 
  It 
  grows 
  in 
  the 
  same 
  localities 
  as 
  the 
  

   X. 
  commune, 
  and 
  is 
  not 
  recorded 
  to 
  occur 
  else- 
  

   where. 
  Whether 
  it 
  is 
  an 
  old 
  variety 
  or 
  a 
  recent 
  

  

  !/ 
  

  

  mutation 
  it 
  is 
  of 
  course 
  impossible 
  to 
  decide. 
  

   In 
  a 
  culture 
  made 
  in 
  my 
  garden 
  from 
  the 
  seed 
  

   sent 
  me 
  by 
  Mr. 
  Cockerell, 
  I 
  observed 
  (1903) 
  that 
  

   both 
  forms 
  had 
  a 
  subvariety 
  with 
  brownish 
  

   foliage, 
  and, 
  besides 
  this, 
  one 
  of 
  a 
  pure 
  green. 
  

   Possibly 
  this 
  species, 
  too, 
  is 
  still 
  in 
  a 
  mutable 
  

   condition. 
  

  

  Perhaps 
  the 
  same 
  may 
  be 
  asserted 
  concerning 
  

   the 
  beautiful 
  shrub, 
  Hibiscus 
  Moscheutos, 
  ob- 
  

   served 
  in 
  quite 
  a 
  number 
  of 
  divergent 
  types 
  by 
  

   John 
  W. 
  Harshberger. 
  They 
  grew 
  in 
  a 
  small 
  

   meadow 
  at 
  Seaside 
  Park, 
  New 
  Jersey, 
  in 
  a 
  

   locality 
  which 
  had 
  been 
  undisturbed 
  for 
  years. 
  

   They 
  differed 
  from 
  each 
  other 
  in 
  nearly 
  all 
  the 
  

  

  