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  KEY 
  AND 
  FLORA 
  

  

  I. 
  PSEDERA 
  Neck. 
  (PARTHENOCISSUS) 
  

  

  Woody 
  vines, 
  climbing 
  by 
  tendrils 
  and 
  rootlets. 
  Leaves 
  

   palmately 
  compound. 
  Flowers 
  in 
  compound 
  cymes, 
  perfect 
  

   or 
  somewhat 
  monoecious. 
  Petals 
  5, 
  distinct, 
  spreading; 
  disk 
  

   none. 
  Stamens 
  5. 
  Ovary 
  2-celled, 
  4-ovuled. 
  Fruit 
  a 
  1-4- 
  

   seeded 
  berry, 
  not 
  edible.* 
  

  

  1. 
  P. 
  quinquefolia 
  Greene. 
  WOODBINE, 
  VIRGINIA 
  CREEPER. 
  Stem 
  

   smooth. 
  Leaflets 
  dull 
  green, 
  paler 
  below; 
  tendrils 
  5-12-branched, 
  

   most 
  of 
  the 
  branches 
  ending 
  in 
  disks 
  which 
  cling 
  to 
  supporting 
  

   objects. 
  Flowers 
  panicled, 
  the 
  main 
  branches 
  of 
  the 
  cluster 
  unequal. 
  

   Fruit 
  hardly 
  fleshy. 
  Thickets, 
  common. 
  

  

  2. 
  P. 
  vitacea 
  Greene. 
  WOODBINE, 
  VIRGINIA 
  CREEPER. 
  Stem 
  

   smooth 
  or 
  slightly 
  downy. 
  Leaflets 
  deep 
  green 
  above, 
  not 
  much 
  

   paler 
  below; 
  tendrils 
  2-5-brauched, 
  the 
  branches 
  usually 
  without 
  

   disks 
  at 
  the 
  tips. 
  Flower 
  cluster 
  forking 
  regularly, 
  the 
  main 
  

   branches 
  nearly 
  equal. 
  Fruit 
  more 
  fleshy 
  than 
  in 
  No. 
  1. 
  Moist 
  

   woods 
  and 
  thickets 
  in 
  deep, 
  rich 
  soil 
  ; 
  common. 
  

  

  3. 
  P. 
  tricuspidata 
  Render. 
  JAPANESE 
  IVY, 
  BOSTON 
  IVY. 
  A 
  freely 
  

   branching, 
  hardy 
  climber. 
  Tendrils 
  numerous, 
  branching 
  with 
  closely 
  

   adhesive 
  disks. 
  Leaves 
  occasionally 
  with 
  3 
  leaflets, 
  but 
  usually 
  with 
  

   only 
  one, 
  which 
  is 
  jointed 
  with 
  the 
  main 
  petiole 
  and 
  in 
  autumn 
  falls 
  

   before 
  the 
  petiole 
  ; 
  leaflet 
  3-lobed 
  or 
  only 
  scalloped, 
  roundish-ovate 
  or 
  

   heart-shaped, 
  rather 
  thick 
  and 
  shining. 
  Cultivated 
  from 
  Japan. 
  

  

  II. 
  VITIS 
  I,. 
  

  

  Climbing 
  woody 
  vines. 
  Stems 
  with 
  enlarged 
  joints, 
  climb- 
  

   ing 
  by 
  tendrils 
  opposite 
  some 
  of 
  the 
  leaves. 
  Leaves 
  simple, 
  

   palmately 
  veined 
  or 
  lobed 
  ; 
  stipules 
  small, 
  soon 
  deciduous. 
  

   Flowers 
  mostly 
  somewhat 
  monoecious 
  or 
  dioecious. 
  Petals 
  

   often 
  united 
  at 
  the 
  apex 
  and 
  not 
  expanding. 
  Stamens 
  in- 
  

   serted 
  between 
  the 
  lobes 
  of 
  the 
  disk. 
  Ovary 
  usually 
  2-celled, 
  

   4-ovuled. 
  Fruit 
  juicy, 
  1-4-seeded.* 
  

  

  1. 
  V. 
  labrusca 
  L. 
  Fox 
  GRAPE. 
  Stems 
  climbing 
  high, 
  often 
  1 
  ft. 
  

   or 
  more 
  in 
  diameter; 
  bark 
  shreddy, 
  coming 
  off 
  in 
  long 
  strips; 
  young 
  

   1 
  IT. 
  niches 
  woolly. 
  Leaves 
  broadly 
  heart-shaped, 
  more 
  or 
  less 
  deeply 
  

   3-5-lobed, 
  mucronate-dentate, 
  very 
  woolly 
  when 
  young, 
  becoming 
  

   smooth 
  above. 
  Panicles 
  of 
  pistillate 
  flowers 
  compact, 
  of 
  staminate 
  

   flowers 
  looser. 
  Fruit 
  about 
  \ 
  in. 
  in 
  diameter, 
  dark 
  purple 
  or 
  some- 
  

   times 
  nearly 
  white. 
  In 
  rich 
  woods 
  E.. 
  S., 
  and 
  S.W. 
  Many 
  of 
  the 
  

   cultivated 
  varieties, 
  such 
  as 
  Concord, 
  Niagara, 
  etc., 
  have 
  been 
  devel- 
  

   oped 
  from 
  this 
  species.* 
  

  

  