﻿148 
  KEY 
  AND 
  FLORA 
  

  

  5. 
  E. 
  Cyparissias 
  L. 
  CYPRESS 
  SPURGE, 
  CYI-KF.SS, 
  GRAVEYARD 
  

   Moss. 
  A 
  perennial, 
  in 
  dense 
  clusters 
  6-12 
  in. 
  high, 
  from 
  running 
  

   rootstocks. 
  Leaves 
  much 
  crowded, 
  all 
  sessile, 
  the 
  stem 
  leaves 
  linear, 
  

   floral 
  ones 
  broadly 
  heart-shaped. 
  Flower 
  cluster 
  a 
  simple, 
  many- 
  

   rayed 
  umbel. 
  Glands 
  crescent-shaped. 
  Cemeteries, 
  roadsides, 
  etc., 
  

   escaped 
  from 
  cultivation; 
  also 
  cultivated 
  in 
  old 
  gardens. 
  From 
  

   Europe. 
  

  

  55. 
  ANACARDIACE^. 
  SUMAC 
  FAMILY 
  

  

  Trees 
  or 
  shrubs, 
  with 
  resinous, 
  acrid, 
  or 
  milky 
  sap. 
  Leaves 
  

   simple, 
  of 
  3 
  leaflets 
  or 
  pinnately 
  compound, 
  alternate, 
  with- 
  

   out 
  stipules. 
  Flowers 
  bisexual 
  or 
  unisexual, 
  small. 
  Calyx 
  

   3-5-parted, 
  persistent. 
  Petals 
  3-5 
  or 
  wanting. 
  Stamens 
  as 
  

   many 
  as 
  the 
  sepals 
  or 
  sometimes 
  twice 
  as 
  many, 
  inserted 
  in 
  

   the 
  base 
  of 
  the 
  calyx, 
  distinct. 
  Ovary 
  free, 
  1-celled; 
  styles 
  

   1-3. 
  Fruit 
  a 
  1-seeded 
  drupe.* 
  

  

  RHUS 
  L. 
  

  

  Trees 
  or 
  shrubs. 
  Leaves 
  of 
  3 
  leaflets 
  or 
  odd-pinnate. 
  

   Flowers 
  in 
  spikes 
  or 
  panicles. 
  Calyx 
  mostly 
  5-parted. 
  Petals 
  

   and 
  stamens 
  5. 
  Pistil 
  1, 
  sessile; 
  styles 
  3, 
  terminal. 
  Fruit 
  

   small, 
  smooth 
  or 
  downy.* 
  

  

  1. 
  R.typhinaL. 
  STAG-HORN 
  SUMAC. 
  A 
  small 
  tree, 
  20-40 
  ft. 
  high 
  ; 
  

   branches 
  and 
  petioles 
  closely 
  velvety-hairy. 
  Leaves 
  odd-pinnate, 
  

   leaflets 
  17-27, 
  lanceolate-oblong, 
  taper-pointed 
  at 
  the 
  apex, 
  very 
  

   obtuse 
  at 
  the 
  base, 
  sharply 
  serrate, 
  smooth 
  above, 
  pale 
  and 
  downy 
  

   beneath. 
  Flowers 
  somewhat 
  momecious, 
  in 
  dense 
  terminal 
  panicles. 
  

   Fruit 
  red, 
  with 
  crimson 
  hairs. 
  Dry 
  hillsides 
  X. 
  and 
  E.' 
  

  

  2. 
  R. 
  glabra 
  L. 
  SUMAC. 
  A 
  shrub 
  or 
  small 
  tree, 
  sometimes 
  25-30 
  

   ft. 
  high; 
  branches 
  downy. 
  Leaves 
  odd-pinnate, 
  main 
  midrib 
  downy 
  

   and 
  wing-margined 
  ; 
  leaflets 
  9-21, 
  ovate-lanceolate, 
  acute 
  at 
  the 
  apex, 
  

   inequilateral, 
  entire 
  or 
  slightly 
  toothed, 
  smooth 
  and 
  green 
  above. 
  

   pale 
  and 
  downy 
  beneath. 
  Panicle 
  often 
  large 
  and 
  spreading 
  ; 
  flowers 
  

   somewhat 
  niomecious. 
  Fruit 
  red, 
  hairy, 
  acid. 
  Open 
  woods.* 
  

  

  3. 
  R. 
  Vernix 
  L. 
  POISON 
  SUMAC, 
  POISON 
  DOGWOOD. 
  A 
  very 
  

   smooth 
  shrub 
  with 
  -ray 
  bark, 
  6-18 
  ft. 
  high. 
  Leaves 
  large 
  and 
  

   glossy, 
  with 
  7-1:5 
  obovate-oblong, 
  entire 
  leaflets. 
  Flower 
  clusters 
  

   loosely 
  (lowered, 
  axillary 
  panicles. 
  Fruit 
  smooth, 
  greenish-yellow. 
  

   Swamps 
  and 
  wet 
  openings 
  in 
  woods 
  N. 
  and 
  E. 
  Plant 
  more 
  poifon 
  

   ous 
  than 
  the 
  following 
  species. 
  

  

  