﻿Rydberg: 
  Notes 
  on 
  Rosaceae 
  61 
  

  

  the 
  

  

  stated 
  that 
  it 
  grew 
  along 
  margins 
  of 
  fields. 
  Wahlenberg, 
  both 
  

   in 
  his 
  Flora 
  Upsaliensis 
  and 
  in 
  his 
  Flora 
  Suecica, 
  identified 
  it 
  with 
  

   R. 
  majalis 
  Retz. 
  and 
  R. 
  cinnamomea 
  Sm., 
  which 
  is 
  the 
  same 
  as 
  

   R. 
  cinnamomea 
  of 
  the 
  second 
  edition 
  of 
  the 
  Species 
  Plantarum; 
  

   he 
  even 
  adopted 
  the 
  name 
  R. 
  spinosissima. 
  

  

  In 
  the 
  tenth 
  edition 
  of 
  his 
  Systema, 
  Linnaeus 
  placed 
  R. 
  

   spinosissima 
  in 
  the 
  second 
  division, 
  i.e., 
  with 
  the 
  species 
  having 
  

   ovate 
  fruit, 
  while 
  he 
  placed 
  R, 
  pimpinellijolia 
  in 
  the 
  first 
  division 
  

   with 
  suglobose 
  fruit. 
  In 
  the 
  second 
  edition 
  of 
  the 
  Species 
  Plan- 
  

   tarum, 
  he 
  added 
  nothing 
  to 
  what 
  he 
  had 
  in 
  the 
  first 
  edition 
  except 
  

   one 
  sentence 
  from 
  the 
  Systema. 
  In 
  his 
  second 
  Mantissa, 
  he 
  

   seems 
  to 
  have 
  changed 
  his 
  views 
  altogether. 
  Under 
  R. 
  pimpi- 
  

  

  nellifolia 
  

  

  made 
  the 
  following 
  remark: 
  "Cum 
  R. 
  spinosissima 
  

   Hallerus.'' 
  Evidently 
  on 
  account 
  of 
  Haller's 
  inter- 
  

   e 
  adopted 
  the 
  name 
  R. 
  spinosissima 
  for 
  R. 
  pimpi- 
  

  

  nellifolia. 
  He 
  omitted 
  all 
  his 
  previous 
  synonyms, 
  cited 
  " 
  Clus. 
  

   hisL 
  I. 
  p, 
  ii6," 
  and 
  made 
  a 
  new 
  description, 
  incorporating 
  in 
  it 
  

   not 
  only 
  a 
  globose 
  fruit, 
  but 
  white 
  petals, 
  yellow 
  at 
  the 
  base, 
  

  

  V 
  

  

  pirn 
  pin 
  ellifo 
  lia 
  

  

  ma 
  

  

  Species 
  Platarum) 
  is 
  in 
  cultivation, 
  and 
  has 
  been 
  found 
  occasionally 
  

   escaped 
  in 
  the 
  northeastern 
  part 
  of 
  this 
  continent, 
  and 
  also 
  in 
  

  

  + 
  

  

  Wisconsin. 
  

  

  32. 
  Rosa 
  palustriformis 
  Rydberg 
  

  

  This 
  species 
  was 
  discovered 
  by 
  Dr. 
  Schuette 
  of 
  Green 
  Bay, 
  

   Wisconsin, 
  who 
  distributed 
  it 
  under 
  an 
  untenable 
  manuscript 
  name. 
  

   In 
  habit, 
  pubescence 
  and 
  prickles, 
  it 
  strongly 
  resembles 
  R. 
  palustris, 
  

   but 
  the 
  hypanthium 
  and 
  sepals 
  are 
  In 
  form 
  and 
  size 
  like 
  those 
  of 
  

   R. 
  blanda. 
  The 
  sepals 
  are 
  erect 
  and 
  persistent 
  in 
  fruit, 
  while 
  

   the 
  hypanthium 
  is 
  glabrous, 
  not 
  glandular-hispid. 
  At 
  first 
  I 
  

   thought 
  that 
  It 
  might 
  be 
  a 
  hybrid 
  between 
  the 
  two 
  species, 
  but 
  

   it 
  has 
  one 
  feature 
  not 
  found 
  in 
  either 
  — 
  the 
  sepals 
  are 
  wholly 
  without 
  

   glands 
  on 
  the 
  back, 
  only 
  with 
  a 
  few 
  gland-teeth 
  on 
  the 
  margins* 
  

   In 
  both 
  R. 
  pahistris 
  and 
  R. 
  blanda, 
  the 
  sepals 
  are 
  glandular 
  on 
  

   the 
  back. 
  The 
  description 
  in 
  the 
  North 
  American 
  Flora 
  was 
  

   drawn 
  from 
  the 
  specimens 
  in 
  the 
  Gray 
  Herbarium. 
  Those 
  

  

  