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  FLORA. 
  

  

  informs 
  me 
  that, 
  although 
  the 
  live-oak 
  timber 
  ap- 
  

   proaches 
  quite 
  near 
  to 
  the 
  thirty-first 
  degree 
  of 
  north 
  

   latitude, 
  in 
  a 
  state 
  of 
  nature 
  it 
  has 
  never 
  been 
  noticed 
  

   by 
  him 
  north 
  of 
  that 
  parallel. 
  He 
  has 
  made 
  the 
  same 
  

   observation 
  with 
  respect 
  to 
  the 
  chestnut, 
  which 
  has 
  

   its 
  southern 
  limit 
  about 
  the 
  same 
  line. 
  

  

  The 
  geographical 
  distribution 
  of 
  some 
  of 
  our 
  forest- 
  

   trees, 
  seems 
  to 
  be 
  well 
  defined. 
  For 
  example, 
  the 
  Mag- 
  

   nolia 
  tripetala 
  (Umbrella-tree), 
  as 
  a 
  prevailing 
  growth, 
  

   seems 
  to 
  be 
  confined 
  to 
  a 
  narrow 
  belt 
  extending 
  north- 
  

   wardly 
  from 
  our 
  southern 
  boundary, 
  in 
  a 
  direction 
  

   parallel 
  with 
  the 
  general 
  course 
  of 
  the 
  Mississippi 
  River, 
  

   and 
  twelve 
  or 
  fifteen 
  miles 
  to 
  the 
  east 
  of 
  it. 
  

  

  I 
  have 
  not 
  met 
  with 
  it 
  north 
  of 
  the 
  thirty-third 
  de- 
  

   gree 
  of 
  north 
  latitude, 
  which 
  seems 
  also 
  to 
  be 
  about 
  the 
  

   northern 
  limit 
  of 
  the 
  Spanish 
  moss, 
  tiTlandsia 
  usneoides. 
  

  

  Over 
  extensive 
  districts 
  of 
  country, 
  a 
  single 
  species 
  

   of 
  timber 
  sometimes 
  is 
  found 
  to 
  prevail 
  almost 
  exclu- 
  

   sively, 
  with 
  the 
  exception 
  of 
  the 
  inferior 
  shrubs 
  and 
  

   plants 
  that 
  constitute 
  the 
  undergrowth. 
  This 
  is 
  the 
  

   case, 
  mainly, 
  with 
  the 
  long 
  and 
  short-leaf 
  pine, 
  which, 
  

   though 
  sometimes 
  blended, 
  occupy 
  generally, 
  distinct 
  

   tracts; 
  and 
  also 
  with 
  the 
  post-oak 
  and 
  black-jack. 
  

   The 
  same 
  may 
  be 
  said, 
  but 
  to 
  less 
  extent, 
  of 
  the 
  

   hickory 
  and 
  the 
  chestnut. 
  

  

  Other 
  tracts 
  exhibit 
  a 
  remarkable 
  variety 
  of 
  the 
  

   forest-trees 
  in 
  close 
  association, 
  which 
  generally 
  affect 
  

   distinct 
  soils 
  and 
  situations. 
  This 
  was 
  noticed 
  as 
  form- 
  

   ing 
  a 
  remarkable 
  feature 
  of 
  the 
  forests 
  in 
  the 
  eastern 
  

   part 
  of 
  Wilkinson 
  County, 
  and 
  in 
  part 
  of 
  Amite. 
  

  

  The 
  evergreens 
  and 
  deciduous 
  trees 
  are 
  seen 
  inter- 
  

   mingled, 
  and 
  forming 
  varied 
  and 
  pleasing 
  contrasts. 
  

   Indeed, 
  it 
  was 
  often 
  difficult 
  to 
  detect 
  on 
  quite 
  limited 
  

   areas 
  the 
  absence 
  of 
  any 
  of 
  our 
  forest-trees. 
  The 
  

  

  