﻿128 
  KEY 
  AND 
  FLORA 
  

  

  C 
  

  

  Herbs 
  or 
  trees. 
  Flowers 
  decidedly 
  papilionaceous. 
  The 
  upper 
  petal 
  ex- 
  

   ternal 
  in 
  bud 
  and 
  inclosing 
  the 
  others. 
  Stamens 
  10, 
  not 
  united 
  to 
  each 
  

   other. 
  

  

  Trees. 
  Cladrastis. 
  VII 
  

  

  Herbs. 
  Pod 
  inflated. 
  Baptisia, 
  VI 
  

  

  Herbs. 
  Pod 
  elongated, 
  necklace-shaped. 
  Sophora, 
  VIII 
  

  

  D 
  

  

  Shrubs 
  with 
  a 
  corolla 
  of 
  one 
  petal 
  only. 
  Amorpha, 
  XVI 
  

  

  E 
  

  

  Herbs, 
  shrubs, 
  or 
  trees. 
  Flowers 
  decidedly 
  papilionaceous. 
  Stamens 
  

   monadelphous 
  or 
  diadelphous 
  (in 
  the 
  latter 
  case 
  usually 
  9 
  and 
  1). 
  

  

  1 
  . 
  Stamens 
  with 
  anthers 
  of 
  two 
  forms. 
  

  

  (a) 
  Herbs. 
  Leaves 
  usually 
  with 
  many 
  leaflets. 
  Lupinus, 
  IX 
  

  

  (b) 
  Herbs. 
  Leaves 
  with 
  3 
  entire 
  leaflets. 
  Psoralea, 
  XV 
  

  

  (c) 
  Trees. 
  Laburnum, 
  X 
  

   (W) 
  Low 
  shrubs. 
  Cytisus, 
  XI 
  

  

  2. 
  Anthers 
  all 
  alike. 
  Leaves 
  usually 
  with 
  3 
  leaflets. 
  

  

  (a) 
  Pod 
  coiled. 
  Medicago, 
  XIV 
  

  

  (6) 
  Pod 
  small, 
  not 
  coiled. 
  Flowers 
  in 
  racemes. 
  

  

  Melilotus, 
  XIII 
  

  

  (c) 
  Pod 
  small, 
  not 
  coiled. 
  Flowers 
  in 
  heads. 
  Trifolium, 
  XII 
  

  

  (d) 
  Pod 
  large, 
  flattened, 
  bur-like. 
  Desmodium, 
  XX 
  

  

  (e) 
  Pod 
  large, 
  not 
  much 
  flattened. 
  Phaseolus, 
  XXIV 
  

  

  3. 
  Anthers 
  all 
  alike. 
  Leaves 
  odd-pinnate, 
  with 
  more 
  than 
  3 
  

  

  leaflets. 
  

  

  (a) 
  Low, 
  woody 
  shrubs. 
  Amorpha, 
  XVI 
  

  

  (i) 
  Tall, 
  twining 
  shrubs. 
  Wisteria, 
  XA'1 
  1 
  1 
  

  

  (c) 
  Trees. 
  Robinia, 
  XVII 
  

  

  (d) 
  Herbs. 
  Astragalus, 
  XIX 
  

  

  4. 
  Anthers 
  all 
  alike. 
  Leaves 
  pinnate, 
  the 
  midrib 
  prolonged 
  into 
  

  

  a 
  tendril. 
  

  

  