﻿132 
  KEY 
  AND 
  FLORA 
  

  

  Flowers 
  creamy-white, 
  in 
  long, 
  drooping 
  panicles. 
  Calyx 
  5- 
  

   toothed. 
  Standard 
  large, 
  nearly 
  round, 
  reflexed 
  ; 
  petals 
  of 
  the 
  

   keel 
  and 
  wings 
  separate 
  and 
  straight. 
  Stamens 
  10, 
  uncon- 
  

   nected 
  with 
  each 
  other. 
  Pod 
  borne 
  on 
  a 
  short 
  stalk 
  above 
  the 
  

   calyx. 
  Seeds 
  4-6. 
  

  

  1. 
  C. 
  lutea 
  Koch. 
  YELLOW 
  WOOD. 
  Tree 
  50 
  ft. 
  or 
  less 
  in 
  height, 
  

   much 
  branched, 
  with 
  a 
  round, 
  spreading 
  top. 
  Hillsides, 
  in 
  fertile 
  

   soil, 
  south 
  central 
  states. 
  Also 
  considerably 
  planted 
  as 
  a 
  shade 
  tree. 
  

  

  VIII. 
  SOPHORA 
  L. 
  

  

  Shrubby 
  or 
  herbaceous 
  perennials. 
  Leaves 
  odd-pinnate, 
  with 
  

   many 
  leaflets. 
  Calyx 
  bell-shaped, 
  with 
  5 
  short 
  teeth. 
  Standard 
  

   roundish 
  ; 
  keel 
  nearly 
  straight. 
  Stamens 
  almost 
  or 
  quite 
  dis- 
  

   tinct 
  ; 
  anthers 
  versatile. 
  Pod 
  stalked, 
  leathery 
  or 
  fleshy, 
  nearly 
  

   cylindrical 
  but 
  more 
  or 
  less 
  contracted 
  between 
  the 
  seeds, 
  not 
  

   splitting 
  open. 
  

  

  1. 
  S. 
  sericea 
  Nutt. 
  Herbaceous 
  with 
  a 
  woody 
  base, 
  erect, 
  6-12 
  

   in. 
  high, 
  covered 
  with 
  silky 
  silvery 
  down. 
  Leaflets 
  7-25, 
  obovate 
  or 
  

   nearly 
  so, 
  obtuse, 
  narrowed 
  at 
  the 
  base, 
  |-| 
  in. 
  long. 
  Flowers 
  white. 
  

   Pod 
  slender, 
  dry, 
  few-seeded. 
  Prairies 
  W. 
  and 
  S.W. 
  

  

  IX. 
  LUPINUS 
  L. 
  

  

  Biennial 
  or 
  perennial 
  herbs. 
  Leaves 
  simple 
  or 
  palmately 
  

   compound. 
  Flowers 
  showy, 
  in 
  terminal 
  racemes. 
  Calyx 
  

   2-lipped, 
  5-toothed. 
  Standard 
  round, 
  with 
  the 
  sides 
  reflexed; 
  

   keel 
  scythe-shaped. 
  Stamens 
  monadelphous 
  ; 
  anthers 
  alter- 
  

   nately 
  oblong 
  and 
  roundish. 
  Ovary 
  sessile 
  ; 
  matured 
  pod 
  

   oblong, 
  several-seeded, 
  often 
  compressed 
  between 
  the 
  seeds.* 
  

  

  1. 
  L. 
  perennis 
  L. 
  Perennial. 
  Stem 
  erect, 
  downy, 
  12-18 
  in. 
  high. 
  

   Leaves 
  palmately 
  7-9 
  -foliate 
  ; 
  leaflets 
  obovate 
  or 
  oblanceolate, 
  obtuse 
  

   and 
  mucronate 
  at 
  the 
  apex, 
  slightly 
  downy 
  ; 
  petiole 
  slender; 
  stipules 
  

   small. 
  Racemes 
  terminal, 
  slender, 
  loosely 
  many-flowered. 
  Flowers 
  

   purple, 
  blue, 
  pink, 
  or 
  white. 
  Pod 
  oblong, 
  densely 
  downy, 
  few-seeded. 
  

   Dry, 
  sandy 
  soil.* 
  

  

  X. 
  LABURNUM 
  Medic. 
  

  

  Trees 
  or 
  shrubs. 
  Leaves 
  of 
  3 
  leaflets, 
  with 
  very 
  small 
  

   stipules 
  or 
  none. 
  Flowers 
  golden-yellow, 
  in 
  slender, 
  drooping 
  

   racemes. 
  Calyx 
  2-lipped, 
  the 
  upper 
  lip 
  2-toothed, 
  the 
  lower 
  

   3-toothed. 
  Standard 
  ovate, 
  upright, 
  of 
  the 
  same 
  length 
  as 
  the 
  

  

  