﻿26 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  same 
  plants. 
  The 
  fungus 
  on 
  this 
  host 
  plant 
  is 
  designated 
  form 
  

  

  cvani. 
  

  

  Senecio 
  vulgaris 
  L. 
  

  

  The 
  common 
  groundsel 
  is 
  sometimes 
  a 
  troublesome 
  weed 
  in 
  

  

  gardens. 
  It 
  begins 
  to 
  flower 
  early 
  in 
  the 
  spring 
  and 
  in 
  wet 
  

  

  seasons 
  successive 
  crops 
  spring 
  up 
  and 
  continue 
  the 
  production 
  

  

  of 
  seed 
  till 
  cold 
  weather 
  stops 
  their 
  growth. 
  In 
  poor 
  soil 
  it 
  will 
  

  

  flower 
  when 
  but 
  two 
  or 
  three 
  inches 
  high, 
  in 
  rich 
  soil 
  it 
  may 
  grow 
  

  

  12 
  inches 
  high 
  and 
  bear 
  many 
  branches. 
  It 
  grows 
  rapidly 
  and 
  

  

  requires 
  but 
  a 
  few 
  days 
  in 
  which 
  to 
  develop 
  from 
  seed 
  to 
  maturity. 
  

  

  The 
  soil 
  sometimes 
  becomes 
  so 
  filled 
  with 
  its 
  seeds 
  that 
  as 
  fast 
  

  

  as 
  one 
  crop 
  of 
  the 
  plants 
  is 
  destroyed 
  another 
  takes 
  its 
  place. 
  

  

  Sisymbrium 
  altissimum 
  L. 
  

   The 
  tall 
  sisymbrium 
  is 
  an 
  introduced 
  plant 
  which 
  has 
  proved 
  

   to 
  be 
  quite 
  troublesome 
  as 
  a 
  weed 
  in 
  some 
  of 
  the 
  northwesrern 
  

   states. 
  The 
  past 
  summer 
  it 
  appeared 
  in 
  the 
  vicinity 
  of 
  Albany. 
  

   It 
  was 
  probably 
  brought 
  here 
  either 
  from 
  the 
  north 
  or 
  the 
  west 
  

   where 
  it 
  has 
  become 
  firmly 
  established. 
  By 
  destroying 
  such 
  

   troublesome 
  weeds 
  when 
  they 
  first 
  appear 
  much 
  future 
  labor 
  and 
  

   trouble 
  may 
  be 
  saved. 
  

  

  Solidago 
  canadensis 
  glabrata 
  Porter 
  

   Generally 
  the 
  early 
  goldenrod. 
  Solidago 
  juncea, 
  is 
  the 
  

   first 
  species 
  to 
  blossom 
  in 
  our 
  latitude. 
  It 
  begins 
  to 
  flower 
  in 
  July, 
  

   The 
  past 
  season, 
  which 
  is 
  notable 
  for 
  its 
  peculiar 
  influence 
  on 
  

   some 
  plants, 
  seems 
  to 
  have 
  hastened 
  the 
  time 
  of 
  flowering 
  of 
  some 
  

   species. 
  On 
  July 
  24, 
  S. 
  juncea, 
  S. 
  canadensis 
  glab- 
  

   rata, 
  S. 
  arguta 
  and 
  S 
  . 
  rugosa 
  were 
  all 
  found 
  growing 
  

   near 
  each 
  other 
  at 
  North 
  Creek 
  and 
  all 
  were 
  nicely 
  in 
  flower. 
  The 
  

   glabrate 
  Canada 
  goldenrod 
  is 
  a 
  northern 
  variety 
  and 
  perhaps 
  in 
  

   its 
  effort 
  to 
  meet 
  the 
  requirements 
  of 
  the 
  short 
  northern 
  seasons 
  

   it 
  has 
  acquired 
  the 
  habit 
  of 
  blooming 
  early. 
  

  

  Viola 
  cucullata 
  Ait. 
  

  

  In 
  the 
  cold 
  bogs 
  and 
  wet 
  places 
  of 
  the 
  Adirondack 
  region 
  where 
  

  

  this 
  blue 
  violet 
  delights 
  to 
  grow, 
  it 
  is 
  not 
  unusual 
  to 
  find 
  it 
  with 
  

  

  flowering 
  scapes 
  6-9 
  inches 
  long. 
  The 
  flowers 
  much 
  surpass 
  the 
  

  

  leaves, 
  often 
  standing 
  twice 
  as 
  high. 
  Such 
  specimens 
  were 
  col- 
  

  

  