﻿OF 
  BRITISH 
  FUNGI. 
  141 
  

  

  Order 
  XV.— 
  PUCCINItEI. 
  Parasitic 
  or 
  Mildew 
  Fungi. 
  

  

  Peridium 
  obsolete 
  ; 
  spores 
  germinating, 
  aud 
  producing 
  

   secondary 
  spores. 
  

  

  Genera. 
  

  

  157. 
  Spores 
  stipitate, 
  multiseptate, 
  moniliform. 
  

  

  Xenodochus, 
  Schlecht. 
  

  

  158. 
  Spores 
  stipitate, 
  multiseptate, 
  cylindrical. 
  

  

  Aregma, 
  Fr. 
  

  

  159. 
  Spores 
  stipitate, 
  biseptate. 
  

  

  Triphragmium, 
  Link. 
  

  

  1G0. 
  Spores 
  stipitate, 
  uniseptate. 
  Pucsinia, 
  Pers. 
  

  

  161. 
  Spores 
  immersed. 
  Stroma 
  gelatinous, 
  expanded. 
  

  

  Gymnosporangium, 
  DO. 
  

  

  162. 
  Spores 
  immersed. 
  Stroma 
  club-shaped. 
  

  

  Podisoma, 
  Link. 
  

  

  163. 
  Spores 
  simple, 
  not 
  stipitate, 
  springing 
  from 
  deli- 
  

  

  cate 
  threads. 
  Tilletia, 
  Tul. 
  

  

  164. 
  Spores 
  simple, 
  deeply 
  seated, 
  not 
  stipitate, 
  pul- 
  

  

  verulent, 
  blackish. 
  Ustilago, 
  Link. 
  

  

  165. 
  Spores 
  simple, 
  superficial, 
  not 
  stipitate, 
  yellow 
  or 
  

  

  brown. 
  Ure^o, 
  Lev. 
  

  

  166. 
  Spores 
  simple, 
  not 
  stipitate, 
  nor 
  enclosed 
  in 
  sepa- 
  

  

  rate 
  cells. 
  Lecitiiea, 
  Lev. 
  

  

  