﻿102 
  KEY 
  AND 
  FLORA 
  

  

  H. 
  MATTHIOLA 
  R. 
  Br. 
  

  

  Herbaceous 
  or 
  shrubby 
  oriental 
  plants, 
  covered 
  with 
  a 
  down 
  

   composed 
  of 
  star-shaped 
  hairs. 
  Flowers 
  in 
  showy 
  racemes 
  of 
  

   many 
  colors, 
  ranging 
  from 
  white 
  to 
  crimson. 
  Stigmas 
  large 
  

   and 
  spreading. 
  Pods 
  nearly 
  cylindrical, 
  except 
  for 
  a 
  promi- 
  

   nent 
  midrib 
  on 
  each 
  valve. 
  

  

  1. 
  M. 
  incana 
  R. 
  Br. 
  COMMON 
  STOCK, 
  GILLYFLOWER. 
  Biennial 
  or 
  

   perennial, 
  with 
  somewhat 
  woody 
  steins. 
  Cultivated 
  in 
  greenhouses 
  

   and 
  gardens. 
  

  

  HI. 
  LESQUERELLA 
  Wats. 
  

  

  Low 
  herbs 
  with 
  stellate 
  hairs. 
  Leaves 
  simple. 
  Flowers 
  in 
  

   racemes, 
  mostly 
  yellow. 
  Pod 
  globular-inflated, 
  with 
  a 
  trans- 
  

   lucent 
  partition 
  nerved 
  from 
  the 
  apex 
  to 
  the 
  middle. 
  Seeds 
  

   few, 
  several 
  or 
  many, 
  flattened, 
  marginless 
  or 
  nearly 
  so. 
  

  

  1. 
  L. 
  globosa 
  Wats. 
  Annual 
  or 
  biennial. 
  Slender, 
  somewhat 
  

   branched, 
  6-20 
  in. 
  high, 
  covered 
  with 
  fine 
  stellate 
  hairs. 
  Basal 
  

   leaves 
  1-1 
  i 
  in. 
  long, 
  oblong-obovate, 
  obtuse. 
  Stem 
  leaves 
  smaller, 
  

   linear 
  or 
  oblong, 
  sessile. 
  Raceme 
  finally 
  elongated 
  witli 
  thread-like 
  

   diverging 
  pedicels. 
  Flowers 
  light 
  yellow. 
  Style 
  slender, 
  much 
  lon_;vr 
  

   than 
  the 
  small 
  globose 
  pod. 
  Rocky 
  banks 
  and 
  open 
  plae.'s 
  S. 
  and 
  W. 
  

  

  2. 
  L. 
  argentea 
  Pursh. 
  SILVERY 
  BLADDER 
  Pon. 
  Biennial 
  or 
  

   perennial, 
  6-18 
  in. 
  high, 
  densely 
  stellate-hairy. 
  Leaves 
  linear 
  to 
  

   oblanceolate, 
  blunt, 
  entire, 
  the 
  lower 
  ones 
  2-3 
  in. 
  long. 
  Flowers 
  

   yellow. 
  Pods 
  downy, 
  on 
  recurved 
  pedicels. 
  Plains 
  W. 
  

  

  IV. 
  LEPIDIUM 
  L. 
  

  

  Annual. 
  Stem 
  erect, 
  or 
  sometimes 
  diffuse. 
  Leaves 
  entire, 
  

   toothed, 
  or 
  pinnately 
  divided. 
  Flowers 
  in 
  a 
  terminal 
  raceme, 
  

   small, 
  white. 
  Petals 
  short, 
  sometimes 
  wanting. 
  Stamens 
  2, 
  

   4, 
  or 
  6. 
  Pod 
  rounded 
  or 
  obcordate, 
  flattened 
  contrary 
  to 
  the 
  

   partitions.* 
  

  

  1. 
  L. 
  virginicum 
  L. 
  PEPPERGRASS, 
  BIRDS' 
  PKPPER, 
  TONGUE 
  

   GRASS. 
  Stem 
  erect, 
  smooth, 
  much 
  branched, 
  1-2 
  ft. 
  high. 
  Lower 
  

   leaves 
  obovate 
  in 
  outline, 
  pinnately 
  cut 
  with 
  dentate 
  lobes 
  ; 
  upper 
  

   leaves 
  lanceolate, 
  dentate, 
  slightly 
  downy. 
  Flowers 
  on 
  slender 
  

   pedicels; 
  petals 
  present, 
  sometimes 
  reduced 
  in 
  the 
  later 
  flowers- 
  

   Stamens 
  2. 
  Pod 
  round. 
  A 
  weed 
  growing 
  in 
  waste 
  places.* 
  

  

  2. 
  L. 
  campestre 
  R. 
  Br. 
  FIELD 
  CRESS. 
  Annual 
  or 
  biennial. 
  Stem 
  

   erect, 
  branching 
  above, 
  downy, 
  8-18 
  in. 
  high. 
  Basal 
  leaves 
  entire 
  or 
  

  

  