﻿SYCAMORE 
  FAMILY 
  113 
  

  

  45. 
  PLATANACE^. 
  SYCAMORE 
  FAMILY 
  

  

  Trees, 
  with 
  simple, 
  alternate, 
  petioled 
  leaves, 
  with 
  stipules 
  ; 
  

   the 
  bases 
  of 
  the 
  petioles 
  covering 
  the 
  buds. 
  Flowers 
  monoe- 
  

   cious, 
  in 
  axillary, 
  long-peduncled, 
  globose 
  heads. 
  Calyx 
  and 
  

   corolla 
  very 
  inconspicuous, 
  each 
  consisting 
  of 
  3-8 
  minute 
  

   scales, 
  or 
  wanting, 
  Stamens 
  as 
  many 
  as 
  the 
  sepals 
  and 
  oppo- 
  

   site 
  them. 
  Pistils 
  several, 
  inversely 
  conical, 
  hairy 
  at 
  the 
  base 
  ; 
  

   styles 
  long. 
  Capsules 
  1-seeded.* 
  

  

  PL 
  AT 
  AN 
  US 
  L. 
  

  

  Characters 
  of 
  the 
  family. 
  

  

  1. 
  P. 
  occidentalis 
  L. 
  SYCAMORE, 
  BUTTONWOOD. 
  A 
  large 
  tree, 
  

   bark 
  light-colored, 
  smooth, 
  peeling 
  off 
  in 
  large, 
  thin 
  plates. 
  Leaves 
  

   large, 
  round-heart-shaped, 
  angularly 
  lobed 
  and 
  toothed, 
  densely 
  

   white-woolly 
  when 
  young, 
  becoming 
  smooth 
  with 
  age 
  ; 
  stipules 
  

   large, 
  toothed. 
  Fruit 
  in 
  a 
  globular, 
  drooping 
  head, 
  which 
  remains 
  

   on 
  the 
  tree 
  through 
  the 
  winter, 
  dropping 
  the 
  seeds 
  very 
  slowly. 
  

   Common 
  on 
  river 
  banks 
  and 
  in 
  swampy 
  woods.* 
  

  

  46. 
  ROSACEJE. 
  ROSE 
  FAMILY 
  

  

  Herbs, 
  shrubs, 
  or 
  trees. 
  Leaves 
  alternate 
  or 
  rarely 
  opposite, 
  

   simple 
  or 
  compound, 
  with 
  stipules. 
  Calyx 
  5-lobed. 
  Petals 
  5, 
  

   rarely 
  wanting, 
  inserted 
  with 
  the 
  stamens 
  on 
  the 
  edge 
  of 
  a 
  disk 
  

   that 
  lines 
  the 
  calyx 
  tube. 
  Stamens 
  many, 
  rarely 
  1 
  or 
  few. 
  

   Carpels 
  1 
  or 
  more, 
  distinct 
  or 
  united, 
  superior 
  or 
  inferior. 
  

   Fruit 
  a 
  pome, 
  a 
  drupe 
  or 
  group 
  of 
  drupes, 
  or 
  1-several 
  akenes 
  

   or 
  follicles, 
  rarely 
  a 
  berry 
  or 
  capsule. 
  The 
  relation 
  of 
  the 
  

   parts 
  of 
  the 
  flower 
  to 
  each 
  other 
  and 
  to 
  the 
  receptacle 
  is 
  shown 
  

  

  in 
  Fig. 
  19. 
  

  

  A 
  

  

  Ripe 
  carpels 
  not 
  inclosed 
  within 
  the 
  calyx 
  tube. 
  

  

  1 
  . 
  Fruit 
  dry. 
  

  

  (a) 
  Carpels 
  1-5, 
  inflated. 
  Physocarpus, 
  I 
  

  

  (b) 
  Pods 
  5-8, 
  not 
  inflated, 
  2-several-seeded. 
  Spiraea, 
  II 
  

  

  