﻿VERBENA 
  FAMILY 
  207 
  

  

  the 
  lower 
  ones 
  narrowed 
  at 
  the 
  base. 
  Corolla 
  narrow, 
  its 
  lobes 
  lance- 
  

   awl-shaped, 
  slightly 
  bearded 
  outside 
  with 
  long 
  bristles. 
  In 
  dry 
  

   thickets 
  or 
  on 
  hillsides. 
  

  

  2. 
  0. 
  hispidissimum 
  Mackenzie. 
  Stem 
  stout, 
  upright, 
  1-4 
  ft. 
  high, 
  

   shaggy 
  with 
  long 
  bristly 
  hairs. 
  Leaves 
  from 
  lanceolate 
  to 
  oblong, 
  

   acute, 
  2-4 
  \ 
  in. 
  long. 
  Corolla 
  rather 
  broad, 
  its 
  lobes 
  ovate-triangular 
  

   or 
  triangular-lanceolate, 
  thickly 
  hairy 
  outside. 
  Nutlets 
  with 
  a 
  very 
  

   short 
  neck 
  at 
  the 
  base. 
  Rich 
  soil 
  along 
  river 
  banks 
  and 
  bottom 
  lands. 
  

  

  VHI. 
  ECHIUM 
  L. 
  

  

  Herbs 
  or 
  sometimes 
  shrubs, 
  usually 
  stout, 
  coarse, 
  and 
  hairy. 
  

   Leaves 
  entire. 
  Flowers 
  white, 
  reddish-purple 
  or 
  blue, 
  in 
  spiked 
  

   or 
  panicled 
  racemes. 
  Calyx 
  5-parted. 
  Corolla 
  tube 
  cylindrical 
  

   or 
  funnel-shaped 
  ; 
  the 
  throat 
  dilated 
  ; 
  the 
  limb 
  with 
  5 
  unequal 
  

   lobes. 
  Filaments 
  unequal, 
  attached 
  to 
  the 
  corolla 
  below, 
  pro- 
  

   jecting 
  from 
  the 
  corolla. 
  Style 
  thread-like; 
  stigma 
  2-lobed. 
  

   Nutlets 
  4, 
  ovoid 
  or 
  top-shaped, 
  wrinkled. 
  

  

  1. 
  E. 
  vulgare 
  L. 
  BLUE 
  THISTLE, 
  BLUE 
  WEED, 
  BLUE 
  DEVILS. 
  

  

  Stems 
  1-3 
  ft. 
  high, 
  more 
  or 
  less 
  erect, 
  leafy, 
  covered 
  with 
  stinging 
  

   hairs. 
  Root 
  leaves 
  lanceolate 
  or 
  oblong, 
  petioled, 
  4-8 
  in. 
  long; 
  

   stem 
  leaves 
  sessile, 
  acute, 
  rounded 
  at 
  the 
  base. 
  Flowers 
  showy, 
  

   reddish-purple 
  in 
  the 
  bud, 
  changing 
  to 
  bright 
  blue. 
  A 
  very 
  trouble- 
  

   some 
  weed, 
  especially 
  in 
  fallow 
  fields. 
  Naturalized 
  from 
  Europe. 
  

  

  87. 
  VERBENACEJE. 
  VERBENA 
  FAMILY 
  

  

  Herbs, 
  shrubs, 
  or 
  trees. 
  Leaves 
  opposite 
  or 
  whorled, 
  with- 
  

   out 
  stipules. 
  Flowers 
  zygomorphic, 
  in 
  bracted 
  cymes. 
  Calyx 
  

   hypogynous, 
  cleft 
  or 
  toothed. 
  Corolla 
  hypogynous, 
  tubular, 
  

   usually 
  more 
  or 
  less 
  2-lipped. 
  Stamens 
  usually 
  4 
  (2 
  long 
  and 
  

   2 
  short), 
  inserted 
  on 
  the 
  corolla 
  tube. 
  Ovary 
  usually 
  2-4-celled 
  

   (in 
  Phryma 
  1-celled), 
  with 
  the 
  style 
  springing 
  from 
  its 
  summit. 
  

  

  I. 
  VERBENA 
  L. 
  

  

  Annual 
  or 
  perennial 
  herbs. 
  Leaves 
  simple, 
  opposite, 
  ser- 
  

   rate 
  or 
  pinnately 
  lobed. 
  Flowers 
  in 
  terminal 
  spikes 
  which 
  

   become 
  much 
  elongated 
  in 
  fruit. 
  Calyx 
  tubular, 
  5-ribbed, 
  5- 
  

   toothed. 
  Corolla 
  salverform 
  or 
  funnelform, 
  the 
  tube 
  often 
  

   curved, 
  bearded 
  in 
  the 
  throat, 
  limb 
  spreading, 
  5-lobed, 
  often 
  

  

  