﻿Rydberg: 
  Notes 
  on 
  Rosaceae 
  57 
  

  

  Wisconsin, 
  Michigan, 
  and 
  northern 
  New 
  York, 
  labelled 
  R. 
  Engel- 
  

   mannii 
  and 
  many 
  labelled 
  R. 
  Sayi 
  belong 
  here. 
  R. 
  Sayi 
  Schwein. 
  

   is 
  in 
  reality 
  a 
  synonym 
  of 
  this. 
  See 
  discussion 
  under 
  the 
  next 
  

   species. 
  Sometimes 
  R, 
  acictdaris 
  is 
  nearly 
  destitute 
  of 
  bristles, 
  

   and 
  may 
  then 
  be 
  mistaken 
  for 
  R. 
  blanda, 
  but 
  the 
  elhpsoid 
  fruit 
  

   always 
  distinguishes 
  it. 
  Such 
  specimens 
  are: 
  

  

  Michigan: 
  Presque 
  Isle 
  Park, 
  Marquette, 
  Wheeler 
  (deter- 
  

   mined 
  by 
  Crepin 
  as 
  R, 
  hlanda, 
  with 
  the 
  following 
  remark, 
  "fruiting 
  

   receptacle 
  resembling 
  that 
  of 
  R, 
  acicularis 
  var. 
  EngelmannW). 
  

  

  24. 
  Rosa 
  Bourgeauiana 
  Crepin 
  

  

  ■ 
  « 
  

  

  This 
  was 
  first 
  collected 
  by 
  Richardson 
  on 
  the 
  Saskatchewan 
  

   or 
  somewhere 
  between 
  that 
  river 
  and 
  the 
  Mackenzie, 
  and 
  was 
  

   published 
  as 
  R. 
  majalis 
  Borrer 
  in 
  Hooker's 
  Flora. 
  There 
  is 
  an 
  

   older 
  R. 
  majalis 
  Herm., 
  however. 
  In 
  1875, 
  Crepin 
  proposed 
  the 
  

   name 
  R. 
  B 
  ottrgeauiana 
  , 
  without 
  a 
  description, 
  but 
  the 
  next 
  year 
  

   he 
  reduced 
  it 
  to 
  a 
  variety 
  of 
  R. 
  acictdaris. 
  Watson, 
  in 
  his 
  Mono- 
  

   graph 
  of 
  the 
  North 
  American 
  Roses, 
  adopted 
  the 
  name 
  R. 
  Sayi 
  

  

  i 
  

  

  Schwein, 
  and 
  it 
  has 
  usually 
  been 
  known 
  under 
  that 
  name. 
  It 
  is 
  

   not 
  R. 
  Sayi 
  Schwein., 
  however, 
  for 
  Schweinitz 
  described 
  his 
  species 
  

   as 
  having 
  ellipsoid 
  fruit 
  and 
  the 
  leaves 
  pubescent 
  beneath. 
  These 
  

   characters 
  point 
  without 
  any 
  doubt 
  to 
  R. 
  acicularis^ 
  which 
  is 
  also 
  

   found 
  in 
  the 
  region 
  visited 
  by 
  Schweinitz. 
  R. 
  Sayi 
  must 
  therefore 
  

   be 
  regarded 
  as 
  a 
  synonym 
  of 
  R. 
  acictdaris. 
  

  

  r 
  

  

  25. 
  Rosa 
  acicularioides 
  Schuette 
  

  

  Schuette's 
  description* 
  is 
  very 
  meager, 
  but 
  the 
  writer 
  has 
  seen 
  

   some 
  of 
  his 
  specimens. 
  The 
  description 
  in 
  the 
  North 
  American 
  

   Flora 
  was 
  drawn 
  from 
  those 
  in 
  the 
  Gray 
  Herbarium. 
  Later 
  

   some 
  were 
  also 
  found 
  at 
  the 
  New 
  York 
  Botanical 
  Garden, 
  among 
  

   duplicates 
  from 
  Schuette's 
  herbarium, 
  received 
  in 
  exchange 
  

   from 
  the 
  Field 
  Columbian 
  Museum, 
  Chicago. 
  The 
  plant 
  perhaps 
  

   most 
  resembles 
  i?. 
  Boiifgeaiiinana 
  in 
  habit, 
  leaf-form, 
  and 
  size 
  

   and 
  form 
  of 
  the 
  fruit, 
  but 
  the 
  leaflets 
  are 
  densely 
  pubescent 
  

   beneath 
  as 
  in 
  R. 
  acicularis; 
  yes, 
  even 
  more 
  so, 
  and 
  with 
  longer 
  

   hairs. 
  The 
  specimens 
  are 
  from 
  Lily 
  Bay, 
  Sturgeon 
  Bay, 
  and 
  Little 
  

   Sturgeon, 
  Door 
  County, 
  Wisconsin. 
  

  

  * 
  Proc. 
  Am. 
  Ass. 
  Adv. 
  Sci. 
  46: 
  278-9. 
  1898. 
  

  

  