﻿ROSE 
  FAMILY 
  115 
  

  

  2. 
  Fruit 
  not 
  evidently 
  a 
  pome, 
  or 
  not 
  at 
  all 
  so. 
  

  

  () 
  Trees 
  or 
  shrubs. 
  Fruit 
  with 
  a 
  stone 
  usually 
  of 
  2-5 
  bony 
  

  

  1 
  -seeded 
  carpels 
  united. 
  Cratsegus, 
  VI 
  

  

  (6) 
  Shrubs. 
  Fruit 
  with 
  many 
  akenes 
  borne 
  on 
  the 
  interior 
  

  

  of 
  a 
  fleshy 
  calyx 
  tube. 
  Rosa, 
  XIII 
  

  

  I. 
  PHYSOCARPUS 
  Maxim. 
  (OPULASTER) 
  

  

  Shrubs. 
  Leaves 
  simple, 
  palmately 
  veined 
  and 
  lobed, 
  peti- 
  

   oled. 
  Flowers 
  white, 
  in 
  terminal 
  corymbs. 
  Calyx 
  spreading, 
  

   5-lobed. 
  Petals 
  5. 
  Stamens 
  numerous. 
  Pistils 
  1-5, 
  short- 
  

   stalked 
  ; 
  stigma 
  terminal 
  ; 
  ovaries 
  becoming 
  inflated 
  at 
  matu- 
  

   rity, 
  2^1-seeded, 
  splitting 
  open.* 
  

  

  1. 
  P. 
  opulifolius 
  Maxim. 
  NINE-BARK. 
  A 
  spreading 
  shrub, 
  3-6 
  ft. 
  

   high, 
  the 
  old 
  bark 
  separating 
  into 
  thin 
  strips. 
  Leaves 
  petioled, 
  

   broadly 
  ovate 
  or 
  rounded, 
  often 
  heart-shaped, 
  3-lobed, 
  the 
  lobes 
  

   doubly 
  crenate-serrate 
  ; 
  stipules 
  deciduous. 
  Corymbs 
  terminal, 
  pe- 
  

   duncled, 
  nearly 
  globose, 
  downy, 
  many-flowered. 
  Follicles 
  3-5, 
  much 
  

   longer 
  than 
  the 
  calyx, 
  smooth 
  and 
  shining, 
  obliquely 
  tipped 
  by 
  the 
  

   persistent 
  style. 
  Banks 
  of 
  streams.* 
  

  

  H. 
  SPIR-ffiA 
  L. 
  

  

  Shrubs 
  with 
  simple 
  leaves. 
  Flowers 
  perfect, 
  in 
  terminal 
  

   or 
  axillary 
  racemes 
  or 
  panicles. 
  Calyx 
  5-cleft, 
  persistent. 
  

   Petals 
  5. 
  Stamens 
  numerous. 
  Pistils 
  usually 
  5, 
  free 
  from 
  the 
  

   calyx 
  and 
  alternate 
  with 
  its 
  lobes. 
  Follicles 
  not 
  inflated, 
  2- 
  

   several-seeded.* 
  

  

  1. 
  S. 
  salicifolia 
  L. 
  WILLOW-LEAVED 
  SPIR.EA. 
  Shrubs 
  2-5 
  ft. 
  

   high, 
  branches 
  smooth. 
  Leaves 
  lanceolate 
  to 
  oblong-ovate, 
  smooth 
  

   or 
  nearly 
  so, 
  sharply 
  serrate, 
  base 
  usually 
  wedge-shaped, 
  pale 
  be- 
  

   neath; 
  stipules 
  deciduous. 
  Flowers 
  white 
  or 
  pink, 
  panicle 
  dense- 
  

   flowered; 
  follicles 
  smooth. 
  On 
  low 
  ground.* 
  

  

  2. 
  S. 
  cantoniensis 
  Lour. 
  BRIDAL 
  WREATH. 
  Shrubs 
  2-4 
  ft. 
  tall; 
  

   branches 
  long, 
  slender, 
  and 
  spreading. 
  Leaves 
  lanceolate, 
  serrate, 
  

   sometimes 
  3-lobed 
  or 
  pinnatifid, 
  with 
  a 
  bloom 
  beneath. 
  Flowers 
  

   white 
  or 
  pinkish, 
  in 
  axillary 
  racemes 
  or 
  corymbs, 
  often 
  forming 
  

   long 
  wreaths. 
  Follicles 
  smooth. 
  Cultivated 
  from 
  Europe. 
  

  

  3. 
  S. 
  tomentosa 
  L. 
  HARDHACK. 
  Erect 
  shrubs. 
  Stems 
  densely 
  

   downy, 
  usually 
  simple. 
  Leaves 
  simple, 
  ovate 
  or 
  oblong, 
  serrate, 
  

   densely 
  rusty-downy 
  below, 
  smooth 
  and 
  dark 
  green 
  above. 
  Flowers 
  

  

  