﻿MINT 
  FAMILY 
  209 
  

  

  1. 
  C. 
  americana 
  L. 
  FRENCH 
  MULBERRY, 
  MEXICAN 
  MULBERRY. 
  

   Shrubs, 
  with 
  star-shaped 
  glandular 
  or 
  scurfy 
  down, 
  widely 
  branched, 
  

   3-8 
  ft. 
  high. 
  Leaves 
  ovate 
  to 
  oblong, 
  acute 
  at 
  each 
  end, 
  crenate- 
  

   serrate, 
  rough 
  above, 
  downy 
  beneath, 
  glandular-dotted 
  ; 
  petioles 
  slen- 
  

   der. 
  Cymes 
  many-flowered, 
  the 
  peduncle 
  as 
  long 
  as 
  the 
  petiole 
  ; 
  

   pedicels 
  short. 
  Calyx 
  cup-shaped, 
  the 
  teeth 
  short. 
  Corolla 
  double 
  

   the 
  length 
  of 
  the 
  calyx, 
  blue. 
  Fruit 
  violet-purple, 
  very 
  conspicuous 
  

   in 
  autumn. 
  Common 
  in 
  fields 
  and 
  thickets 
  S.* 
  

  

  88. 
  LABIATJE. 
  MINT 
  FAMILY 
  

  

  Mostly 
  herbs, 
  with 
  square 
  stems 
  and 
  opposite, 
  more 
  or 
  less 
  

   aromatic, 
  leaves, 
  without 
  stipules. 
  Flowers 
  generally 
  in 
  cyme- 
  

   like 
  axillary 
  clusters, 
  which 
  are 
  often 
  grouped 
  into 
  terminal 
  

   spikes 
  or 
  racemes. 
  Calyx 
  tubular, 
  usually 
  2-lipped, 
  persistent. 
  

   Corolla 
  usually 
  2-lipped. 
  Stamens 
  4 
  (2 
  long 
  and 
  2 
  short) 
  or 
  

   only 
  2. 
  Ovary 
  free, 
  with 
  4 
  deep 
  lobes, 
  which 
  surround 
  the 
  

   base 
  of 
  the 
  style. 
  Fruit 
  consisting 
  of 
  4 
  nutlets, 
  ripening 
  

   inside 
  the 
  base 
  of 
  the 
  calyx. 
  

  

  Stamens 
  4- 
  

  

  (a) 
  Calyx 
  2-lipped. 
  

  

  Lips 
  entire. 
  Scutellaria, 
  I 
  

  

  Lips 
  toothed 
  and 
  cleft. 
  Plants 
  not 
  aromatic. 
  Prunella, 
  IV 
  

  

  Lips 
  toothed 
  and 
  cleft. 
  Plants 
  aromatic. 
  Leaves 
  extremely 
  

  

  small. 
  Thymus, 
  IX 
  

  

  (6) 
  Calyx 
  not 
  2-lipped, 
  or 
  not 
  much 
  so. 
  

  

  Calyx 
  tubular, 
  5-10-toothed. 
  Stamens 
  not 
  projecting 
  from 
  

  

  tube 
  of 
  corolla. 
  Marrubium, 
  II 
  

  

  Calyx 
  tubular, 
  with 
  5 
  equal 
  teeth. 
  Stamens 
  under 
  upper 
  

  

  lip 
  of 
  corolla. 
  Nepeta, 
  III 
  

  

  Calyx 
  tubular, 
  bell-shaped, 
  with 
  5 
  awl-shaped 
  teeth. 
  Stamens 
  

  

  not 
  turned 
  down 
  after 
  maturing. 
  Lamium, 
  V 
  

  

  Calyx 
  top-shaped, 
  with 
  spreading 
  spiny 
  teeth. 
  Leonurus, 
  VI 
  

  

  Calyx 
  as 
  in 
  V. 
  Stamens 
  turned 
  down 
  after 
  maturing. 
  

  

  Stachys, 
  Vli 
  

  

  B 
  

  

  Stamens 
  2. 
  Salvia, 
  VIII 
  

  

  