﻿216 
  KEY 
  AND 
  FLORA 
  

  

  or 
  axillary. 
  Calyx 
  persistent, 
  4-5-lobed 
  or 
  toothed, 
  not 
  en- 
  

   larged 
  in 
  fruit. 
  Corolla 
  funnelform 
  or 
  bell-shaped, 
  the 
  limb 
  4-5- 
  

   lobed, 
  the 
  lobes 
  obtuse. 
  Stamens 
  4-5, 
  projecting. 
  Ovary 
  2-celled 
  ; 
  

   style 
  single 
  ; 
  stigma 
  obtuse. 
  Fruit 
  a 
  many-seeded 
  berry.* 
  

  

  1. 
  L. 
  halimifoliumMill. 
  MATRIMONY 
  VINE. 
  Stem 
  slender, 
  branch- 
  

   ing, 
  twining 
  or 
  trailing, 
  6-15 
  ft. 
  long 
  ; 
  branches 
  angled, 
  spiny. 
  Leaves 
  

   elliptical, 
  smooth, 
  entire, 
  sessile 
  or 
  short-petioled. 
  Flowers 
  solitary 
  

   or 
  few 
  in 
  the 
  axils 
  ; 
  peduncles 
  long 
  and 
  slender. 
  Corolla 
  spreading, 
  

   greenish-purple, 
  f-| 
  in. 
  wide. 
  Berry 
  oval, 
  orange-red. 
  Introduced 
  

   from 
  Africa, 
  and 
  often 
  planted 
  for 
  covering 
  trellises.* 
  

  

  IV. 
  DATURA 
  L. 
  

  

  Annual 
  or 
  perennial, 
  strong-scented 
  herbs 
  ; 
  stems 
  tall 
  and 
  

   branching. 
  Leaves 
  petioled, 
  entire 
  or 
  lobed. 
  Flowers 
  large, 
  soli- 
  

   tary 
  in 
  the 
  forks 
  of 
  the 
  branches. 
  Calyx 
  tubular, 
  5-toothed 
  or 
  

   lobed, 
  the 
  upper 
  part 
  deciduous 
  and 
  the 
  lower 
  persistent. 
  Corolla 
  

   funnelform, 
  5-angled. 
  Stamens 
  5, 
  inserted 
  in 
  the 
  corolla 
  tube. 
  

   Ovary 
  2-celled 
  or 
  imperfectly 
  4-celled 
  ; 
  style 
  filiform 
  ; 
  stigma 
  

   2-lobed. 
  Fruit 
  a 
  spiny, 
  4-valved, 
  many-seeded 
  capsule.* 
  

  

  1. 
  D. 
  Stramonium 
  L. 
  JIMSON 
  WEED. 
  Annual; 
  stem 
  smooth, 
  green, 
  

   stout, 
  forking 
  above, 
  1-4 
  ft. 
  high. 
  Leaves 
  ovate 
  to 
  oblong-ovate, 
  

   acute 
  at 
  the 
  apex, 
  narrowed 
  at 
  the 
  base, 
  sinuate-toothed, 
  petioled. 
  

   Calyx 
  5-angled. 
  Corolla 
  white, 
  about 
  4 
  in. 
  long. 
  Capsule 
  ovoid, 
  erect, 
  

   2 
  in. 
  long. 
  A 
  common 
  weed; 
  poisonous. 
  Naturalized 
  from 
  Asia 
  (?).* 
  

  

  2. 
  D. 
  Tatula 
  L. 
  Taller, 
  with 
  a 
  purple. 
  stem; 
  flowers 
  rather 
  later 
  

   than 
  No. 
  1. 
  Corolla 
  violet-tinged. 
  Naturalized 
  from 
  tropical 
  America. 
  

  

  V. 
  PETUNIA 
  Juss. 
  

  

  Herbs 
  ; 
  leaves 
  alternate 
  and 
  entire. 
  Divisions 
  of 
  the 
  calyx 
  

   oblong-spatulate. 
  Corolla 
  showy, 
  spreading, 
  funnel-shaped, 
  

   not 
  perfectly 
  actinomorphic. 
  Stamens 
  5, 
  somewhat 
  unequal 
  

   in 
  length, 
  inserted 
  in 
  the 
  middle 
  of 
  the 
  corolla 
  tube 
  and 
  not 
  

   projecting 
  beyond 
  it. 
  Capsule 
  2-celled, 
  containing 
  many 
  very 
  

   small 
  seeds. 
  

  

  1. 
  P. 
  violacea 
  Lindl. 
  COMMON 
  PETUNIA. 
  Stems 
  rather 
  weak 
  and 
  

   reclining. 
  Leaves 
  covered 
  with 
  clammy 
  down. 
  Corolla 
  varying 
  from 
  

   pale 
  pink 
  to 
  bright 
  purplish-red, 
  often 
  variegated, 
  with 
  a 
  broad, 
  

   inflated 
  tube, 
  which 
  is 
  hardly 
  twice 
  as 
  long 
  as 
  the 
  calyx. 
  Cultivated 
  

   annual 
  from 
  South 
  America. 
  

  

  