﻿118 
  KEY 
  AND 
  FLORA 
  

  

  Calyx 
  tube 
  5-cleft, 
  its 
  lobes 
  epigynous. 
  Petals 
  oblong. 
  Styles 
  

   5, 
  united 
  below 
  ; 
  ovary 
  5-celled, 
  2 
  ovules 
  in 
  each 
  cell, 
  often 
  

   only 
  1 
  maturing. 
  Fruit 
  small, 
  berry 
  -like.* 
  

  

  1. 
  A. 
  canadensis 
  Medic. 
  SERVICE 
  BERRY, 
  JUNEBERRY, 
  SHAD 
  

   BUSH, 
  SUGAR 
  PLUM, 
  SUGAR 
  PEAR, 
  WILD 
  PEAR. 
  A 
  small 
  tree, 
  

   branches 
  downy 
  when 
  young, 
  soon 
  becoming 
  smooth. 
  Leaves 
  ovate 
  

   to 
  elliptical, 
  finely 
  and 
  sharply, 
  serrate, 
  acute 
  at 
  the 
  apex, 
  usually 
  

   obtuse 
  or 
  cordate 
  at 
  the 
  base. 
  Racemes 
  slender, 
  many-flowered, 
  

   appearing 
  before 
  or 
  with 
  the 
  leaves. 
  Flowers 
  showy. 
  Petals 
  4 
  or 
  5 
  

   times 
  the 
  length 
  of 
  the 
  smooth 
  calyx 
  lobes. 
  Fruit 
  globose, 
  dark 
  red, 
  

   edible. 
  In 
  rich 
  woods. 
  Extremely 
  variable 
  in 
  height 
  and 
  in 
  shape 
  

   of 
  leaves.* 
  

  

  2. 
  A. 
  spicata 
  K. 
  Koch. 
  ROUND-LEAVED 
  JUNEBERRY. 
  Much 
  like 
  

   A. 
  canadensis, 
  but 
  with 
  the 
  leaves 
  broadly 
  oval, 
  ovate, 
  or 
  almost 
  

   orbicular, 
  and 
  usually 
  rounded 
  at 
  both 
  ends. 
  Woods 
  and 
  thickets, 
  

   especially 
  N. 
  

  

  VI. 
  CRAT^GUS 
  L. 
  

  

  Shrubs 
  or 
  small 
  trees, 
  mostly 
  with 
  numerous 
  strong 
  spines, 
  

   wood 
  very 
  hard. 
  Leaves 
  serrate, 
  lobed 
  or 
  deeply 
  incised, 
  

   petioled. 
  Flowers 
  white 
  or 
  pink, 
  in 
  terminal 
  corymbs 
  or 
  

   sometimes 
  solitary. 
  Calyx 
  tube 
  urn-shaped, 
  5-cleft, 
  the 
  limb 
  

   persistent. 
  Petals 
  round. 
  Stamens 
  few 
  or 
  many. 
  Styles 
  1-5, 
  

   distinct 
  ; 
  ovules 
  1 
  in 
  each 
  cell. 
  Fruit 
  a 
  small 
  pome 
  with 
  bony 
  

   carpels.* 
  [The 
  species 
  are 
  hard 
  to 
  distinguish 
  and 
  are 
  not 
  

   very 
  perfectly 
  denned. 
  Probably 
  more 
  than 
  GO 
  species 
  occur 
  

   within 
  the 
  limits 
  of 
  this 
  flora.] 
  

  

  VII. 
  FRAGARIA 
  L. 
  

  

  Perennial 
  scape-bearing 
  herbs, 
  with 
  runners. 
  Leaves 
  with 
  

   3 
  leaflets 
  ; 
  stipules 
  united 
  to 
  the 
  petiole. 
  Flowers 
  (of 
  Ameri- 
  

   can 
  species) 
  white. 
  Calyx 
  hypogynous, 
  5-parted, 
  5-bracted, 
  

   persistent. 
  Petals 
  5. 
  Stamens 
  many. 
  Carpels 
  many, 
  on 
  a 
  

   convex 
  receptacle. 
  Akenes 
  of 
  the 
  ripe 
  strawberry 
  many, 
  very 
  

   small, 
  more 
  or 
  less 
  imbedded 
  in 
  the 
  large, 
  sweet, 
  pulpy 
  

   receptacle. 
  

  

  1. 
  F. 
  virginiana 
  Duchesne. 
  WILD 
  STRAWBERRY. 
  Leaflets 
  thick, 
  

   oval 
  to 
  obovate, 
  coarsely 
  serrate, 
  somewhat 
  hairy. 
  Scape 
  usually 
  

   shorter 
  than 
  the 
  petioles, 
  few-flowered. 
  Fruit 
  ovoid, 
  akenes 
  imbedded 
  

   in 
  deep 
  pits. 
  Common.* 
  

  

  