﻿OF 
  BRITISH 
  FUNGI. 
  155 
  

  

  Order 
  XXVIL-PHAC1DIACEI. 
  

  

  Hard 
  ; 
  hymenium 
  ultimately 
  exposed. 
  

  

  Genera. 
  

  

  292. 
  Perithecia 
  bursting 
  in 
  the 
  centre 
  by 
  valvular 
  

  

  teeth. 
  Phacidium, 
  Fr. 
  

  

  293. 
  Perithecia 
  fjloboso-depressed, 
  at 
  length 
  open 
  

  

  above. 
  Heterosph^ria, 
  Grev. 
  

  

  294. 
  Perithecia 
  confluent, 
  opening 
  by 
  flexuose 
  fissures. 
  

  

  Khttisma, 
  Fr. 
  

  

  295. 
  Perithecia 
  labiate, 
  splitting 
  from 
  the 
  centre. 
  

  

  Tuiblidium, 
  lieb. 
  

  

  296. 
  Perithecia 
  labiate. 
  Mouth 
  linear, 
  narrow. 
  Asci 
  

  

  elongated. 
  Htsteeium, 
  Tode. 
  

  

  297. 
  Perithecia 
  branched. 
  Mouth 
  linear, 
  narrow. 
  

  

  Asci 
  subglobose. 
  .Ailoguapuum, 
  Lib. 
  

  

  298. 
  Perithecia 
  hemispherical, 
  seated 
  on 
  a 
  byssoid 
  

  

  mycelium, 
  splitting 
  irregularly. 
  Asci 
  short. 
  

  

  Astebina, 
  Lev. 
  

  

  299. 
  Perithecia 
  stipitate, 
  wedge-shaped. 
  Mouth 
  

  

  linear, 
  narrow. 
  Asci 
  elongated. 
  

  

  Lophium, 
  Fr. 
  

  

  300. 
  Perithecia 
  orbicular, 
  splitting 
  horizontally, 
  with 
  

  

  a 
  deciduous 
  operculum. 
  Ntf.gia, 
  Fr. 
  

  

  301. 
  Disc 
  innate, 
  erumpent, 
  Beated 
  on 
  a 
  black 
  hy- 
  

  

  pothecium, 
  persistent. 
  TROCniLA, 
  Fr. 
  

  

  