﻿18 
  KEY 
  AND 
  FLORA 
  

  

  1. 
  L. 
  laricina 
  Koch. 
  AMERICAN 
  LARCH, 
  TAMARACK, 
  HACKMA- 
  

   TACK 
  (wrongly, 
  but 
  quite 
  generally, 
  called 
  Cypress 
  and 
  Juniper). 
  

   A 
  tall, 
  slender 
  tree, 
  30-100 
  ft. 
  high. 
  Leaves 
  slender 
  and 
  less 
  than 
  

   1 
  in. 
  long, 
  very 
  pale 
  bluish-green. 
  Cones 
  -J-f 
  in. 
  long, 
  few-scaled. 
  

   Wood 
  hard, 
  tough, 
  and 
  heavy, 
  of 
  considerable 
  use 
  for 
  shipbuilding. 
  

  

  2. 
  L. 
  decidua 
  Mill. 
  EUROPEAN 
  LARCH. 
  Leaves 
  bright 
  green 
  and 
  

   longer. 
  Cones 
  longer 
  than 
  in 
  the 
  preceding 
  species 
  and 
  many-scaled. 
  

   Cultivated 
  from 
  Europe. 
  

  

  VI. 
  TAXODIUM 
  Richard 
  

  

  Trees. 
  Leaves 
  spreading 
  so 
  as 
  to 
  appear 
  2-ranked, 
  decidu- 
  

   ous. 
  Flowers 
  monoscious, 
  appearing 
  before 
  the 
  leaves 
  ; 
  stami- 
  

   nate 
  ones 
  numerous, 
  globose, 
  forming 
  long, 
  terminal, 
  drooping, 
  

   panicled 
  spikes 
  ; 
  anthers 
  2-5-celled. 
  Pistillate 
  flowers 
  single 
  

   or 
  in 
  pairs, 
  bractless, 
  the 
  peltate 
  scales 
  2-ovuled. 
  Cone 
  globose 
  ; 
  

   the 
  very 
  thick 
  woody 
  scales 
  angular, 
  separating 
  at 
  maturity. 
  

   Seeds 
  3-angled, 
  pyramidal.* 
  

  

  1. 
  T. 
  distichum 
  Richard. 
  BALD 
  CYPRESS. 
  A 
  very 
  large 
  tree 
  ; 
  bark 
  

   dark 
  brown, 
  rough, 
  fibrous 
  ; 
  many 
  of 
  the 
  twigs 
  deciduous 
  with 
  the 
  

   leaves. 
  Leaves 
  alternate, 
  opposite, 
  or 
  whorled, 
  2-ranked, 
  flat, 
  linear, 
  

   \-\ 
  in. 
  long. 
  Cones 
  terminal, 
  globose, 
  about 
  1 
  in. 
  in 
  diameter; 
  ends 
  

   of 
  the 
  scales 
  much 
  thickened, 
  wrinkled, 
  and 
  with 
  a 
  distinct 
  trian- 
  

   gular 
  marking. 
  Common 
  in 
  swamps 
  and 
  on 
  the 
  borders 
  of 
  streams 
  ; 
  

   wood 
  reddish, 
  soft, 
  light; 
  specially 
  valued 
  for 
  shingles 
  and 
  fence 
  

   posts, 
  and 
  for 
  boat 
  building.* 
  

  

  VII. 
  THUJA 
  L. 
  

  

  Flowers 
  small, 
  terminal, 
  monoecious, 
  on 
  different 
  branches. 
  

   Stamens 
  each 
  consisting 
  of 
  a 
  scale-like 
  portion 
  bearing 
  4 
  

   anther-like 
  cells. 
  Pistillate 
  flowers 
  consisting 
  of 
  a 
  few 
  overlap- 
  

   ping 
  scales 
  which 
  ripen 
  into 
  a 
  small, 
  loose 
  cone. 
  Leaves 
  ever- 
  

   green, 
  opposite, 
  and 
  closely 
  overlapping 
  on 
  the 
  stein, 
  of 
  two 
  

   kinds, 
  those 
  on 
  the 
  more 
  rapidly 
  growing 
  twigs 
  awl-shaped, 
  

   the 
  others 
  mere 
  scales. 
  

  

  1. 
  T. 
  occidentalis 
  L. 
  ARBOR 
  VIT^E, 
  CEDAR. 
  A 
  small 
  tree, 
  20-50 
  

   ft. 
  high, 
  with 
  soft, 
  fibrous 
  bark. 
  Leaves 
  mostly 
  awl-shaped 
  and 
  blunt. 
  

   Cones 
  ellipsoidal, 
  their 
  scales 
  2-seeded. 
  Grows 
  on 
  rocky 
  ledges, 
  but 
  

   reaches 
  its 
  greatest 
  size 
  in 
  cool 
  cedar 
  swamps. 
  Wood 
  soft, 
  yellowish, 
  

   fragrant, 
  durable, 
  prized 
  for 
  shingles 
  and 
  fence 
  posts. 
  

  

  