﻿48 
  Rydberg: 
  Notes 
  on 
  Rosaceae 
  

  

  understood 
  and 
  no 
  specimens 
  need 
  to 
  be 
  cited. 
  The 
  only 
  syn- 
  

   onyms 
  the 
  author 
  has 
  found, 
  are: 
  R. 
  lucida 
  Lawrence, 
  and 
  R. 
  

   Macartnea 
  Dum. 
  Cours. 
  The 
  former 
  is 
  a 
  hyponym 
  and 
  a 
  hom- 
  

   onym. 
  The 
  latter 
  has 
  often 
  been 
  given 
  as 
  a 
  synonym 
  of 
  R. 
  

   laevigata, 
  but 
  erroneously 
  so, 
  for 
  it 
  Is 
  easily 
  seen 
  from 
  Dumortier's 
  

   description 
  that 
  it 
  belongs 
  to 
  R. 
  bracteata. 
  

  

  III. 
  GALLICAE 
  

  

  One 
  species. 
  

  

  5. 
  R. 
  gallica 
  

  

  5. 
  Rosa 
  gallica 
  L. 
  

  

  Cultivated 
  in 
  many 
  forms 
  and 
  occasionally 
  escaped. 
  Some 
  

   of 
  these 
  escaped 
  specimens 
  may 
  belong 
  to 
  the 
  pure-blooded 
  

   R, 
  gallica, 
  but 
  others 
  are 
  plainly 
  referable 
  to 
  R. 
  centifolia. 
  Whether 
  

   or 
  not 
  the 
  latter 
  is 
  a 
  distinct 
  species 
  Is 
  a 
  question 
  which 
  I 
  have 
  had 
  

   neither 
  the 
  time 
  nor 
  the 
  inclination 
  to 
  settle. 
  The 
  following 
  

   specimens, 
  belonging 
  to 
  R. 
  gallica 
  or 
  closely 
  related 
  species, 
  have 
  

   been 
  recorded 
  within 
  the 
  area. 
  

  

  N. 
  

  

  Wi 
  

  

  IV. 
  CANINAE 
  

  

  Leaflets 
  

  

  rate 
  with 
  gland-tipped 
  teeth. 
  

  

  Leaflets 
  suborbicular 
  or 
  broadly 
  oval, 
  mostly 
  rounded 
  at 
  

   the 
  apex; 
  hypanthium 
  in 
  fruit 
  obovoid 
  or 
  broadly 
  ellip- 
  

   soid, 
  abruptly 
  contracted 
  at 
  the 
  apex; 
  sepals 
  tardily 
  

   deciduous 
  or 
  more 
  or 
  less 
  persistent; 
  styles 
  pubescent. 
  6. 
  R. 
  rubiginosa. 
  

  

  Leaflets 
  ovate 
  or 
  oval, 
  acute 
  or 
  short-acuminate; 
  hypan- 
  

  

  ^ 
  thium 
  in 
  fruit 
  narrowly 
  elliptic, 
  tapering 
  at 
  both 
  ends; 
  

   ' 
  sepals 
  rather 
  early 
  deciduous; 
  styles 
  glabrous 
  or 
  nearly 
  

  

  so. 
  

  

  Leaflets 
  not 
  glandular 
  beneath, 
  except 
  sometimes 
  on 
  the 
  

  

  midrib; 
  teeth 
  only 
  occasionally 
  double. 
  

  

  7. 
  R. 
  micraniha. 
  

  

  Leaves 
  pubescent, 
  at 
  least 
  beneath, 
  and 
  on 
  the 
  rachis. 
  8. 
  R. 
  dumetorum. 
  

  

  Leaves 
  glabrous 
  on 
  both 
  sides, 
  shining 
  above, 
  g, 
  R, 
  canina. 
  

  

  6. 
  Rosa 
  rubiginosa 
  L. 
  

  

  The 
  Sweetbrier 
  is 
  often 
  cultivated 
  and 
  has 
  become 
  thoroughly 
  

  

  4 
  « 
  A 
  ^ 
  

  

  very 
  

  

  naturalized 
  in 
  many 
  places, 
  

   and 
  the 
  naturalized 
  specimens 
  show 
  also 
  such 
  variation. 
  All 
  

   specimens 
  labeled 
  R. 
  rubiginosa 
  do 
  not, 
  however, 
  belon; 
  

   species. 
  At 
  least 
  one-fourth 
  of 
  them 
  belong 
  to 
  the 
  next. 
  

  

  hi 
  

  

  'i. 
  

  

  