﻿I06 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Hypholoma 
  capnoides 
  Fr. 
  

  

  On 
  and 
  about 
  spruce 
  stumps 
  and 
  decaying 
  wood 
  of 
  spruce. 
  Adi- 
  

   rondack 
  mountains. 
  September.' 
  

  

  Psathyra 
  umbonata 
  n. 
  sp. 
  

  

  Pileus 
  submembranous, 
  campanulate, 
  umbonate, 
  hygrophanous^ 
  

   purplish-brown 
  and 
  striatulate 
  when 
  moist, 
  grayish-white 
  when 
  dry, 
  

   even 
  or 
  sHghtly 
  rugulose, 
  atomate, 
  the 
  umbo 
  commonly 
  paler 
  than 
  

   the 
  rest; 
  lamellae 
  rather 
  broad, 
  moderately 
  close, 
  ventricose, 
  sub- 
  

   adnate, 
  brownish-red, 
  becoming 
  purplish-brown 
  and 
  finally 
  almost 
  

   black; 
  stem 
  slender, 
  flexuose, 
  hollow, 
  white, 
  commonly 
  hairy-tomen- 
  

   tose 
  at 
  the 
  base 
  and 
  sHghtly 
  mealy 
  at 
  the 
  top 
  ; 
  spores 
  blackish-brown 
  

   or 
  almost 
  black, 
  .0005 
  to 
  .0006 
  in. 
  long, 
  .0003 
  broad. 
  

  

  Chip 
  dirt. 
  Lake 
  Pleasant. 
  July. 
  

  

  The 
  species 
  is 
  apparently 
  related 
  to 
  Psathyra 
  corrugis, 
  but 
  differs 
  in 
  

   the 
  color 
  of 
  the 
  pileus 
  and 
  of 
  the 
  young 
  lamellae 
  and 
  in 
  the 
  flexuose 
  

   stem. 
  The 
  umbo 
  is 
  very 
  prominent 
  and 
  when 
  the 
  pileus 
  begins 
  to 
  

   lose 
  its 
  moisture 
  the 
  umbo 
  becomes 
  very 
  conspicuous, 
  for 
  it 
  first 
  loses 
  

   color 
  and 
  becomes 
  much 
  paler 
  than 
  the 
  rest, 
  appearing 
  like 
  a 
  whitish 
  

   knob 
  in 
  the 
  midst 
  of 
  a 
  dark 
  background. 
  The 
  margin 
  of 
  the 
  young 
  

   pileus 
  is 
  straight 
  and 
  sometimes 
  shows 
  vestiges 
  of 
  a 
  slight 
  grayish 
  

   fibrillose 
  veil. 
  In 
  dried 
  specimens 
  the 
  pileus 
  is 
  apt 
  to 
  become 
  sulcate- 
  

   striate 
  or 
  radiately 
  sulcate. 
  

  

  Coprinus 
  quadrifidus 
  «. 
  sp. 
  

  

  Pileus 
  thin, 
  at 
  first 
  oval, 
  then 
  campanulate, 
  finally 
  more 
  or 
  less 
  ex- 
  

   panded 
  with 
  the 
  margin 
  revolute, 
  when 
  young 
  adorned 
  with 
  a 
  super- 
  

   ficial 
  floccose-tomentose 
  veil, 
  which 
  soon 
  separates 
  into 
  evanescent 
  

   flakes 
  or 
  scales 
  and 
  reveals 
  the 
  finely 
  striate 
  surface 
  of 
  the 
  pileus, 
  

   whitish 
  becoming 
  grayish 
  or 
  grayish-brown 
  with 
  age, 
  the 
  margin 
  

   often 
  wavy 
  or 
  irregular; 
  lamellae 
  broad, 
  thin, 
  crowded, 
  free, 
  at 
  first 
  

   whitish, 
  then 
  dark 
  purplish-brown, 
  finally 
  black; 
  stem 
  equal 
  or 
  

   slightly 
  tapering 
  upward, 
  hollow, 
  floccose-squamulose, 
  white, 
  some- 
  

   times 
  with 
  a 
  slight 
  evanescent 
  fioccose 
  ring 
  near 
  the 
  base; 
  spores 
  

   .0003 
  to 
  .0004 
  in. 
  long, 
  .00016 
  to 
  .0002 
  broad. 
  

  

  Plant 
  gregarious 
  or 
  caespitose; 
  pileus 
  2 
  to 
  3 
  in. 
  broad; 
  stem 
  3 
  to 
  4 
  

   in. 
  long, 
  3 
  to 
  4 
  lines 
  thick. 
  

  

  