﻿208 
  KEY 
  AND 
  FLORA 
  

  

  somewhat 
  2-lipped. 
  Stamens 
  4 
  (2 
  long 
  and 
  2 
  short), 
  rarely 
  

   only 
  2, 
  included. 
  Ovary 
  2-4-celled, 
  2-4-ovuled 
  ; 
  style 
  slen- 
  

   der, 
  2-lobed. 
  Fruit 
  2-4 
  smooth 
  or 
  roughened, 
  1-seeded 
  nut- 
  

   lets. 
  [Several 
  of 
  the 
  commonest 
  species 
  are 
  tall, 
  coarse 
  herbs, 
  

   which 
  blossom 
  too 
  late 
  for 
  school 
  study.]* 
  

  

  1. 
  V. 
  officinalis 
  L. 
  EUROPEAN 
  VERVAIN. 
  Annual; 
  stem 
  erect, 
  

   slender, 
  nearly 
  or 
  quite 
  smooth, 
  branching, 
  1-3 
  ft. 
  high. 
  Leaves 
  

   ovate 
  to 
  obovate 
  in 
  outline, 
  pinnately 
  lobed 
  or 
  divided, 
  narrowed 
  and 
  

   entire 
  toward 
  the 
  base, 
  downy 
  beneath 
  ; 
  petioles 
  margined. 
  Spikes 
  

   several, 
  very 
  slender 
  ; 
  flowers 
  small, 
  purple 
  ; 
  bracts 
  shorter 
  than 
  the 
  

   calyx. 
  In 
  fields 
  and 
  waste 
  places. 
  Naturalized 
  from 
  Europe.* 
  

  

  2. 
  V. 
  angustifolia 
  Michx. 
  NARROW-LEAVED 
  VERVAIN. 
  Peren- 
  

   nial, 
  rough-hairy 
  ; 
  stem 
  simple, 
  or 
  branched 
  below, 
  from 
  a 
  creeping 
  

   base, 
  1-2 
  ft. 
  high. 
  Leaves 
  lanceolate 
  to 
  spatulate, 
  obtuse 
  and 
  toothed 
  

   at 
  the 
  apex, 
  tapering 
  to 
  a 
  sessile 
  base. 
  Spike 
  peduncled, 
  slender, 
  

   close-flowered; 
  bracts 
  about 
  the 
  length 
  of 
  the 
  calyx. 
  Corolla 
  purple, 
  

   tube 
  slightly 
  curved, 
  \ 
  in. 
  long. 
  In 
  dry, 
  open 
  woods.* 
  

  

  3. 
  V. 
  bracteosa 
  Michx. 
  Perennial 
  ; 
  widely 
  spreading 
  or 
  decumbent, 
  

   hairy; 
  stems 
  6-15 
  in. 
  long, 
  4-sided, 
  branching 
  from 
  the 
  base. 
  Leaves 
  

   wedge-lanceolate, 
  3-cleft 
  or 
  pinnately 
  cut, 
  short-petioled. 
  Spikes 
  ses- 
  

   sile, 
  stout, 
  with 
  large 
  bracts, 
  the 
  lower 
  ones 
  pinnately 
  cut 
  and 
  longer 
  

   than 
  the 
  flowers. 
  Flowers 
  small, 
  purple. 
  On 
  prairies 
  and 
  waste 
  ground. 
  

  

  4. 
  V. 
  bipinnatifida 
  Nutt. 
  Perennial; 
  plant 
  rough-hairy, 
  producing 
  

   suckers, 
  erect, 
  6-18 
  in. 
  high. 
  Leaves 
  with 
  petioles, 
  or 
  the 
  upper 
  ones 
  

   sessile, 
  once 
  or 
  twice 
  pinnately 
  parted 
  into 
  oblong 
  or 
  linear 
  divisions. 
  

   Spikes 
  stout, 
  dense 
  and 
  solitary 
  at 
  the 
  ends 
  of 
  the 
  branches; 
  bracts 
  

   usually 
  longer 
  than 
  the 
  calyx. 
  Corolla 
  bluish-purple 
  or 
  lilac, 
  less 
  

   than 
  -i 
  in. 
  in 
  diameter. 
  Dry 
  plains 
  and 
  prairies 
  W. 
  and 
  S. 
  

  

  5. 
  V. 
  canadensis 
  Britton. 
  WILD 
  VERBENA. 
  A 
  slender-stemmed, 
  

   somewhat 
  reclining 
  annual, 
  1 
  ft. 
  or 
  less 
  in 
  height. 
  Leaves 
  ovate 
  or 
  

   nearly 
  so, 
  wedge-shaped 
  at 
  the 
  base, 
  lobed 
  and 
  toothed 
  or 
  3-cleft. 
  

   Flowers 
  showy, 
  reddish-purple 
  or 
  lilac 
  (seldom 
  white), 
  in 
  a 
  peduncled 
  

   spike. 
  Calyx 
  teeth 
  as 
  long 
  as 
  or 
  longer 
  than 
  the 
  bracts. 
  Corolla 
  very 
  

   slightly 
  bearded 
  in 
  the 
  throat. 
  In 
  dry 
  prairie 
  soil 
  and 
  open 
  woods 
  ; 
  

   also 
  cultivated. 
  [Other 
  somewhat 
  similar 
  cultivated 
  species 
  are 
  from 
  

   Brazil.] 
  

  

  II. 
  CALLICARPA 
  L. 
  

  

  Shrubs. 
  Leaves 
  simple, 
  petioled, 
  opposite 
  or 
  whorled, 
  glan- 
  

   dular-dotted. 
  Flowers 
  in 
  axillary 
  cymes. 
  Calyx 
  4-toothed 
  or 
  

   entire. 
  Corolla 
  funnelform, 
  4-cleft, 
  actinomorphic. 
  Stamens 
  

   4, 
  equal, 
  projecting. 
  Ovary 
  4-ovuled 
  ; 
  style 
  slender 
  ; 
  stigma 
  

   knobbed. 
  Fruit 
  a 
  1-4-seeded 
  berry.* 
  

  

  