﻿MUSTARD 
  FAMILY 
  101 
  

  

  (ft) 
  Pods 
  cylindrical 
  ; 
  seeds 
  ellipsoid. 
  Flowers 
  very 
  small, 
  yellow. 
  

  

  Sisymbrium, 
  VIII 
  

   (c) 
  Pods 
  cylindrical 
  ; 
  seeds 
  globular. 
  Flowers 
  of 
  moderate 
  size, 
  

  

  yellow. 
  Brassica, 
  VII 
  

  

  (W) 
  Pods 
  cylindrical 
  ; 
  seeds 
  in 
  2 
  rows 
  ; 
  flowers 
  white. 
  Or 
  pods 
  

  

  ovoid 
  or 
  ellipsoid 
  ; 
  flower 
  yellowish. 
  Aquatic 
  plants, 
  or 
  

  

  growing 
  in 
  wet 
  soil. 
  Radicula, 
  IX 
  

  

  (e) 
  Pods 
  cylindrical 
  or 
  angled 
  ; 
  seeds 
  in 
  a 
  single 
  row, 
  flattened. 
  

  

  Flowers 
  yellow. 
  Barbarea, 
  X 
  

  

  C 
  

  

  Pods 
  elongated, 
  often 
  jointed, 
  tapering 
  toward 
  the 
  tip, 
  never 
  splitting 
  

   open. 
  Raphanus, 
  VI 
  

  

  D 
  

  

  Pods 
  flattened 
  parallel 
  to 
  the 
  partition, 
  splitting 
  open 
  when 
  ripe. 
  

  

  (a) 
  Wild 
  species 
  ; 
  leafy 
  -stemmed 
  ; 
  growing 
  in 
  or 
  near 
  water. 
  Pods 
  

  

  linear. 
  Cardamine, 
  XII 
  

  

  (b) 
  Wild 
  species 
  ; 
  stems 
  naked 
  below, 
  bearing 
  only 
  2 
  or 
  3 
  leaves. 
  

  

  Pods 
  lanceolate. 
  Dentaria, 
  XI 
  

  

  (c) 
  Wild 
  species 
  ; 
  leafy 
  -stemmed 
  ; 
  growing 
  on 
  dry 
  ground 
  or 
  

  

  rocks. 
  Pods 
  linear 
  ; 
  seeds 
  usually 
  winged 
  or 
  margined. 
  

  

  Arabis, 
  XIII 
  

  

  (rf) 
  Cultivated 
  species. 
  Pods 
  round 
  or 
  roundish. 
  Lobularia, 
  I 
  

   (e) 
  Cultivated 
  species 
  ; 
  covered 
  with 
  a 
  grayish 
  down 
  of 
  star- 
  

   shaped 
  hairs. 
  Pods 
  cylindrical. 
  Matthiola, 
  II 
  

  

  I. 
  LOBULARIA 
  Desv. 
  (KONIGA) 
  

  

  Perennial, 
  though 
  usually 
  growing 
  as 
  an 
  annual. 
  Stems 
  

   branching, 
  diffuse 
  ; 
  branches 
  slender. 
  Leaves 
  small, 
  entire, 
  

   downy, 
  with 
  forked 
  hairs. 
  Flowers 
  small, 
  white, 
  in 
  numerous 
  

   terminal 
  racemes. 
  Petals 
  obovate, 
  entire, 
  twice 
  as 
  long 
  as 
  the 
  

   sepals. 
  Filaments 
  enlarged 
  below. 
  Pod 
  round, 
  compressed 
  ; 
  

   seeds 
  1 
  in 
  each 
  cell.* 
  

  

  1. 
  L. 
  maritima 
  Desv. 
  SWEET 
  ALYSSUM. 
  Stem 
  weak, 
  diffuse, 
  

   ascending, 
  minutely 
  downy. 
  Lower 
  leaves 
  narrowed 
  into 
  a 
  petiole, 
  

   the 
  upper 
  sessile. 
  Racemes 
  erect, 
  many-flowered. 
  Flowers 
  fragrant, 
  

   pedicels 
  ascending. 
  Pod 
  often 
  pointed. 
  Common 
  in 
  cultivation 
  and 
  

   often 
  run 
  wild.* 
  

  

  