﻿114 
  

  

  KEY 
  AND 
  FLORA 
  

  

  (c) 
  Carpels 
  5-15 
  (usually 
  10), 
  1-seeded. 
  Filipendula, 
  X 
  

  

  (</) 
  Akenes 
  2-6, 
  styles 
  not 
  lengthening 
  after 
  flowering. 
  

  

  Waldsteinia, 
  VIII 
  

  

  (e) 
  Akenes 
  many, 
  on 
  a 
  dry 
  receptacle. 
  Styles 
  not 
  length- 
  

   ening. 
  Potentilla, 
  IX 
  

   (/) 
  Akenes 
  many, 
  on 
  a 
  dry 
  receptacle. 
  Styles 
  lengthening 
  

   after 
  flowering, 
  forming 
  tails 
  to 
  the 
  akenes. 
  

  

  Geum., 
  XI 
  

   2. 
  Fruit 
  fleshy. 
  

  

  (a) 
  Akenes 
  several-many, 
  becoming 
  little 
  drupes 
  

  

  Rubus, 
  XII 
  

  

  (ft) 
  Akenes 
  many, 
  dry 
  on 
  ripening, 
  on 
  a 
  fleshy, 
  eatable 
  

  

  receptacle. 
  Fragaria, 
  VII 
  

  

  (c) 
  Pistil 
  solitary, 
  becoming 
  a 
  drupe 
  Prunus, 
  XIV 
  

  

  L.JO 
  

  

  A 
  B 
  

  

  FIG. 
  19. 
  Pistils 
  in 
  the 
  Rose 
  Family 
  

   A, 
  Primus-type; 
  B, 
  Potentilla-type; 
  C, 
  Rosa-type, 
  c, 
  calyx; 
  o, 
  ovary 
  

  

  B 
  

  

  Ripe 
  carpels 
  inclosed 
  icilhin 
  the 
  calyx 
  tube. 
  

  

  1. 
  Fruit 
  a 
  pome. 
  

  

  (a) 
  Carpels 
  more 
  than 
  2-seeded 
  ; 
  seeds 
  covered 
  with 
  a 
  muci- 
  

   laginous 
  pulp. 
  Fruit 
  5-celled. 
  Cydonia, 
  III 
  

  

  (6) 
  Carpels 
  2-seeded 
  (except 
  in 
  some 
  cultivated 
  varieties); 
  

   seeds 
  without 
  pulp. 
  Fruit 
  5-celled. 
  Pyrus, 
  IV 
  

  

  (c) 
  Carpels 
  2-seeded 
  ; 
  fruit 
  10-celled. 
  Amelanchier, 
  V 
  

  

  