﻿154 
  KEY 
  AND 
  FLORA 
  

  

  2. 
  I. 
  biflora 
  Walt. 
  WILD 
  BALSAM, 
  LADY'S 
  SLIPPER, 
  JEWELWEED, 
  

   SNAPWEED, 
  KICKING 
  COLT. 
  Stem 
  L'-l 
  ft. 
  high, 
  branching. 
  Leaves 
  

   rhombic-ovate, 
  1-4 
  in. 
  long. 
  Peduncles 
  about 
  1 
  in. 
  long, 
  generally 
  

   2-3-flowered. 
  Flowers 
  orange 
  color, 
  with 
  many 
  pretty, 
  large, 
  reddish- 
  

   brown 
  spots. 
  Sac 
  longer 
  than 
  it 
  is 
  broad, 
  ending 
  in 
  a 
  recurved 
  spur 
  

   about 
  I 
  in- 
  l 
  n 
  g- 
  Damp, 
  shaded 
  ground, 
  commoner 
  than 
  No. 
  1 
  and 
  

   usually 
  blossoming 
  earlier. 
  

  

  62. 
  RHAMNACE^. 
  BUCKTHORN 
  FAMILY 
  

  

  Trees 
  or 
  shrubs. 
  Leaves 
  simple, 
  often 
  3-5-nerved 
  ; 
  stipules 
  

   small. 
  Flowers 
  small, 
  sometimes 
  unisexual, 
  green 
  or 
  yellow. 
  

   Calyx 
  4-5-lobed. 
  Petals 
  4, 
  5, 
  or 
  absent, 
  inserted 
  on 
  a 
  disk 
  at 
  

   the 
  throat 
  of 
  the 
  calyx, 
  very 
  small, 
  hooded, 
  usually 
  with 
  

   claws. 
  Stamens 
  4-5, 
  inserted 
  with 
  the 
  petals 
  and 
  opposite 
  

   them, 
  often 
  inclosed 
  by 
  the 
  petals 
  ; 
  filaments 
  awl-shaped 
  ; 
  

   anthers 
  small, 
  versatile. 
  Ovary 
  3-celled, 
  3-ovuled. 
  

  

  I. 
  BERCHEMIA 
  Neck. 
  

  

  Shrubs 
  ; 
  stems 
  twining 
  or 
  erect. 
  Leaves 
  alternate, 
  promi- 
  

   nently 
  pinnate-veined, 
  stipules 
  minute. 
  Flowers 
  in 
  axillary 
  

   or 
  terminal 
  panicles, 
  or 
  rarely 
  solitary. 
  Calyx 
  tube 
  hemi- 
  

   spherical, 
  5-lobed. 
  Petals 
  5, 
  sessile, 
  concave, 
  as 
  long 
  as 
  the 
  

   calyx. 
  Ovary 
  2-celled, 
  half 
  inferior 
  ; 
  stigmas 
  2. 
  Fruit 
  an 
  oval, 
  

   2-seeded 
  drupe.* 
  

  

  1. 
  B. 
  scandens 
  Trel. 
  SUPPLE 
  JACK, 
  RATTAN 
  VINE. 
  Woody, 
  often 
  

   twining 
  high; 
  older 
  bark 
  yellowish, 
  twigs 
  purple, 
  wood 
  very 
  tough. 
  

   Leaves 
  ovate 
  or 
  oval, 
  acute 
  or 
  obtuse, 
  cuspidate 
  at 
  the 
  apex, 
  rounded 
  

   at 
  the 
  base, 
  wavy 
  on 
  the 
  margins, 
  green 
  above, 
  pale 
  beneath. 
  

   Flowers 
  in 
  small 
  panicles. 
  Fruit 
  purple. 
  In 
  moist 
  woods 
  and 
  along 
  

   streams 
  S.* 
  

  

  n. 
  RHAMNUS 
  L. 
  

  

  Leaves 
  alternate, 
  deciduous. 
  Flowers 
  in 
  small, 
  axillary 
  

   cymes, 
  often 
  unisexual. 
  Petals 
  4-5 
  or 
  wanting. 
  Stamens 
  4 
  

   or 
  5, 
  very 
  short. 
  Drupe, 
  2-4-seeded. 
  

  

  1. 
  R. 
  lanceolata 
  Pursh. 
  A 
  tall 
  shrub. 
  Leaves 
  with 
  short 
  petioles, 
  

   taper-pointed 
  or 
  somewhat 
  obtuse, 
  very 
  variable 
  in 
  size, 
  smooth 
  or 
  

   nearly 
  so 
  above, 
  more 
  or 
  less 
  downy 
  beneath, 
  finely 
  serrate. 
  Flowers 
  

  

  