﻿172 
  KEY 
  AND 
  FLORA 
  

  

  length, 
  rigid, 
  covered 
  with 
  abloom, 
  parallel-veined, 
  fringed 
  with 
  white 
  

   bristles. 
  Bracts 
  shorter 
  than 
  the 
  heads, 
  entire; 
  bractlcts 
  similar 
  

   but 
  smaller. 
  Flowers 
  white. 
  Fruit 
  scaly. 
  In 
  damp 
  soil.* 
  

  

  H. 
  SANICULA 
  L. 
  

  

  Slender, 
  erect, 
  perennial 
  herbs. 
  Rootstock 
  short, 
  stout, 
  

   creeping. 
  Leaves 
  palmately 
  cut. 
  Umbels 
  small, 
  somewhat 
  

   globular, 
  irregularly 
  compound 
  ; 
  bracts 
  leafy 
  ; 
  bractlets 
  few 
  ; 
  

   flowers 
  bisexual 
  or 
  staminate, 
  greenish 
  or 
  yellowish. 
  Calyx 
  

   teeth 
  as 
  long 
  as 
  the 
  small 
  petals, 
  sharp-pointed. 
  Fruit 
  ovoid, 
  

   covered 
  with 
  hooked 
  prickles, 
  ribless, 
  each 
  carpel 
  with 
  5 
  oil 
  

   tubes. 
  

  

  1. 
  S. 
  marilandica 
  L. 
  SANICLE, 
  BLACK 
  SNAKEKOOT. 
  Perennial. 
  

   Stem 
  rather 
  stout, 
  1-4 
  ft. 
  high. 
  Leaves 
  3-7-parted, 
  the 
  divisions 
  

   irregularly 
  serrate 
  or 
  dentate 
  and 
  often 
  cut. 
  Flowers 
  bisexual 
  and 
  

   staminate, 
  the 
  latter 
  in 
  separate 
  heads. 
  Petals 
  greenish-white, 
  very 
  

   small. 
  Styles 
  slender, 
  recurved, 
  and 
  longer 
  than 
  the 
  prickles 
  of 
  the 
  

   fruit. 
  Rich 
  woods. 
  

  

  2. 
  S. 
  gregaria 
  Bicknell. 
  CLUSTERED 
  SNAKEROOT. 
  Stems 
  gener- 
  

   ally 
  clustered, 
  1-3 
  ft. 
  high. 
  Leaves 
  5-divided, 
  obovate-wedge-shaped 
  

   to 
  lanceolate. 
  Some 
  of 
  the 
  staminate 
  flowers 
  in 
  separate 
  heads. 
  

   Petals 
  yellow, 
  much 
  longer 
  than 
  the 
  calyx. 
  Styles 
  longer 
  than 
  the 
  

   prickles 
  of 
  the 
  fruit. 
  Woods 
  and 
  thickets. 
  

  

  3. 
  S. 
  canadensis 
  L. 
  SHORT-STYLED 
  SNAKEROOT. 
  Leaves 
  peti- 
  

   oled, 
  3-5-divided. 
  Staminate 
  flowers 
  never 
  in 
  separate 
  heads. 
  Styles 
  

   shorter 
  than 
  the 
  prickles 
  of 
  the 
  fruit. 
  In 
  woodlands. 
  

  

  ffl. 
  ERIGENIA 
  Nutt. 
  

  

  A 
  little 
  smooth 
  plant, 
  with 
  a 
  slender, 
  unbranched 
  stem, 
  from 
  

   a 
  deep, 
  nearly 
  globular 
  tuber. 
  Leaves 
  1 
  or 
  2, 
  twice 
  or 
  thrice 
  

   compound 
  in 
  threes. 
  Flowers 
  few, 
  small, 
  in 
  an 
  imperfect 
  

   leafy-bracted 
  umbel. 
  Calyx 
  teeth 
  wanting. 
  Petals 
  obovate 
  or 
  

   spatulate. 
  Fruit 
  smooth, 
  roundish, 
  notched 
  at 
  both 
  ends, 
  the 
  

   two 
  carpels 
  touching 
  only 
  at 
  top 
  and 
  bottom, 
  each 
  with 
  5 
  

   slender 
  ribs. 
  

  

  1. 
  E. 
  bulbosa 
  Nutt. 
  HARBINGER 
  OF 
  SPRING, 
  TURKEY 
  PEA, 
  PEP- 
  

   PER-AND-SALT. 
  Stem 
  scape-like, 
  with 
  a 
  leaf 
  which 
  forms 
  an 
  invo- 
  

   lucre 
  to 
  the 
  flower 
  cluster. 
  Petals 
  white, 
  anthers 
  brown-purple. 
  A 
  

   pretty, 
  though 
  inconspicuous 
  plant; 
  welcomed 
  as 
  one 
  of 
  the 
  earliest 
  

   spring 
  flowers 
  S. 
  

  

  