﻿122 
  KEY 
  AND 
  FLORA 
  

  

  with 
  a 
  broad 
  tube 
  ; 
  its 
  lobes 
  5, 
  persistent. 
  Petals 
  5. 
  Stamens 
  

   many. 
  Carpels 
  many, 
  distinct, 
  on 
  a 
  convex 
  receptacle. 
  Fruit 
  

   a 
  cluster 
  of 
  little 
  1-seeded 
  drupes 
  on 
  a 
  dry 
  or 
  somewhat 
  juicy 
  

  

  receptacle. 
  

  

  A. 
  RASPBERRIES 
  

  

  Grains 
  of 
  the 
  fruit, 
  when 
  ripe, 
  usually 
  falling 
  off 
  from 
  the 
  receptacle 
  

  

  and 
  l< 
  ni-iii/i 
  the 
  latter 
  with 
  the 
  

  

  1. 
  R. 
  idaeus 
  L., 
  var. 
  aculeatissimus. 
  RED 
  RASPBERRY. 
  Stems 
  

   widely 
  branching, 
  biennial, 
  not 
  rooting 
  at 
  the 
  tips, 
  armed 
  with 
  

   weak 
  bristles 
  and 
  with 
  a 
  few 
  hooked 
  prickles. 
  Leaves 
  petioled, 
  of 
  

   3-5 
  ovate 
  leaflets 
  which 
  are 
  sharply 
  serrate 
  and 
  sometimes 
  lobed, 
  

   downy 
  beneath. 
  Flowers 
  in 
  terminal 
  and 
  axillary 
  racemes 
  and 
  

   panicles, 
  pedicels 
  drooping. 
  Fruit 
  hemispherical 
  or 
  conical, 
  red, 
  

   separating 
  easily 
  from 
  the 
  receptacle. 
  Common 
  on 
  mountains 
  and 
  

   burned 
  clearings, 
  Iowa 
  and 
  X., 
  and 
  widely 
  cultivated.* 
  

  

  2. 
  R. 
  occidentalis 
  L. 
  BLACK 
  RASPBERRY. 
  Stems 
  long 
  and 
  slender, 
  

   often 
  recurved 
  and 
  rooting 
  at 
  the 
  tips, 
  armed 
  with 
  weak, 
  hooked 
  

   prickles. 
  Leaves 
  petioled. 
  :'.-.") 
  ovate 
  leaflets, 
  coarsely 
  serrate, 
  white- 
  

   downy 
  below. 
  Flowers 
  white, 
  in 
  compact 
  terminal 
  corymbs. 
  Pedi- 
  

   cels 
  erect 
  or 
  ascending. 
  Fruit 
  black, 
  hemispherical, 
  separating 
  easily 
  

   from 
  the 
  receptacle. 
  Common 
  on 
  borders 
  of 
  woods, 
  Missouri 
  and 
  

   N., 
  widely 
  cultivated.* 
  

  

  3. 
  R. 
  odoratus 
  L. 
  FLOWERING 
  RASPBERRY 
  (often 
  wronglv 
  called 
  

   MTLBERRY). 
  Stems 
  shrubby, 
  rather 
  stout, 
  3-5 
  ft. 
  high, 
  not 
  prickly; 
  

   the 
  young 
  shoots, 
  peduncles, 
  and 
  calyx 
  covered 
  with 
  sticky 
  glandular 
  

   hairs. 
  Leaves 
  large, 
  simple, 
  3-5-lobed. 
  Flowers 
  showy, 
  rose-purple, 
  

   1-2 
  in. 
  in 
  diameter, 
  on 
  many-flowered 
  peduncles. 
  Fruit 
  red, 
  flattish, 
  

   eatable. 
  Rather 
  common 
  E. 
  and 
  N., 
  and 
  often 
  cultivated. 
  

  

  4. 
  R. 
  triflorus 
  Richards. 
  DWARF 
  RASPBERRY 
  (also 
  wrongly 
  known 
  

   as 
  M 
  r 
  LBEUK 
  Y). 
  A 
  slender, 
  trailing 
  plant, 
  almost 
  entirely 
  herbaceous, 
  

   not 
  prickly 
  but 
  sometimes 
  bristly. 
  Leaves 
  compound, 
  usually 
  of 
  3 
  

   lint, 
  sometimes 
  of 
  5 
  thin, 
  ovate-lanceolate, 
  frequently 
  unsymmetrical 
  

   leaflets, 
  which 
  are 
  coarsely 
  doubly 
  serrate 
  and 
  often 
  cleft 
  or 
  lobed, 
  

   with 
  a 
  shining 
  upper 
  surface. 
  Flowers 
  small, 
  on 
  1-3 
  -flowered 
  pedun- 
  

   cles. 
  Fruit 
  usually 
  few-grained, 
  rather 
  dark 
  red, 
  eatable, 
  the 
  grains 
  

   adhering 
  somewhat 
  to 
  the 
  receptacle. 
  Common, 
  especially 
  N.. 
  in 
  hilly 
  

   woods, 
  often 
  forming 
  a 
  dense 
  carpet 
  in 
  the 
  partial 
  shade 
  of 
  pines. 
  

  

  B. 
  BLACKBERRIES 
  

   Grains 
  of 
  the 
  ripe 
  fruit 
  fatting 
  from 
  the 
  calyx 
  along 
  with 
  the 
  soft, 
  eat* 
  

  

  5. 
  R. 
  allegheniensis 
  Porter. 
  IIicn 
  BLACKBERRY. 
  Stem 
  shrubby, 
  

   erect 
  or 
  bending. 
  :j-7 
  ft. 
  high, 
  glandular-downy 
  above 
  and 
  with 
  stout, 
  

  

  