﻿16 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  uluni; 
  teeth 
  scattered, 
  minute, 
  .1-.25 
  mm 
  long, 
  .05.1 
  mm 
  broad, 
  

   obtuse, 
  often 
  forked, 
  colored 
  like 
  the 
  subiculum 
  but 
  paler 
  or 
  white 
  

   at 
  the 
  subciliate 
  tips. 
  Growing 
  chiefly 
  on 
  the 
  hynienial 
  surface 
  

   of 
  Stereum 
  frustulosum 
  but 
  often 
  spreading 
  over 
  the 
  

   substratum 
  of 
  decayed 
  wood. 
  Mt 
  McGregor, 
  Saratoga 
  co. 
  July. 
  

   The 
  growth 
  is 
  most 
  vigorous 
  on 
  the 
  surface 
  of 
  the 
  Stereum, 
  

   where 
  the 
  subiculum 
  becomes 
  thickest 
  and 
  the 
  teeth 
  most 
  numer- 
  

   ous. 
  On 
  the 
  woody 
  substratum 
  the 
  growth 
  is 
  poor, 
  the 
  subiculum 
  is 
  

   thin 
  and 
  often 
  the 
  mycelium 
  spreads 
  naked 
  over 
  the 
  surface 
  of 
  the 
  

   wood. 
  This 
  has 
  suggested 
  the 
  specific 
  name. 
  The 
  thinning 
  out 
  of 
  

   the 
  subiculum 
  indicates 
  that 
  the 
  fungus 
  finds 
  its 
  proper 
  nourish- 
  

   ment 
  in 
  the 
  tissues 
  of 
  the 
  Stereum 
  and 
  it 
  is 
  doubtful 
  if 
  it 
  will 
  be 
  

   found 
  dissociated 
  from 
  that 
  plant. 
  It 
  appears 
  to 
  be 
  related 
  to 
  

   H. 
  sulphurellum 
  Pk. 
  but 
  differs 
  from 
  it 
  in 
  color, 
  in 
  the 
  

   indeterminate 
  margin 
  and 
  in 
  the 
  ciliate 
  teeth. 
  

  

  Inocybe 
  castanea 
  n. 
  sp. 
  

  

  PLATE 
  0, 
  FIG. 
  1-8 
  

  

  Pileus 
  conic 
  or 
  convex, 
  umbonate, 
  rimose 
  fibrillose, 
  the 
  margin 
  

   incurved, 
  dark 
  chestnut 
  brown; 
  lamellae 
  thin, 
  narrow, 
  close, 
  

   adnate, 
  whitish 
  or 
  pallid 
  when 
  young, 
  ferruginous 
  brown 
  when 
  

   mature; 
  stem 
  equal, 
  hollow, 
  glabrous, 
  slightly 
  pruinose 
  or 
  mealy 
  

   at 
  the 
  top 
  ; 
  paler 
  than 
  the 
  pileus 
  ; 
  often 
  whitened 
  at 
  the 
  base 
  by 
  

   mycelioid 
  tomentum; 
  spores 
  angular, 
  nearly 
  or 
  quite 
  as 
  broad 
  

   as 
  long, 
  .00025-.0003 
  of 
  an 
  inch 
  long 
  and 
  broad; 
  cystidia 
  subfusi- 
  

   form, 
  .002-.0024 
  of 
  an 
  inch 
  long. 
  

  

  Pileus 
  5-8 
  lines 
  broad 
  ; 
  stem 
  10-18 
  lines 
  long, 
  about 
  1 
  line 
  thick. 
  

   Mossy 
  ground 
  under 
  spruce 
  and 
  balsam 
  fir 
  trees. 
  Lake 
  Pleasant. 
  

   August. 
  

  

  This 
  species 
  is 
  very 
  closely 
  related 
  to 
  I. 
  umboninota 
  from 
  

  

  which 
  it 
  may 
  be 
  separated 
  by 
  its 
  smaller 
  size, 
  the 
  chestnut 
  tint 
  of 
  

  

  the 
  cap, 
  its 
  hollow 
  stem 
  and 
  smaller 
  merely 
  angular 
  spores. 
  

  

  Cystidia 
  are 
  more 
  abundant. 
  The 
  species 
  belongs 
  to 
  section 
  

  

  Kimosi. 
  

  

  Inocybe 
  excoriata 
  n. 
  sp. 
  

  

  PLATE 
  O, 
  FIG. 
  14-19 
  

  

  Pileus 
  fleshy, 
  broadly 
  conic, 
  soon 
  broadly 
  convex, 
  umbonate, 
  

   fibrillose 
  or 
  fibrillose 
  squamulose, 
  somewhat 
  silky 
  or 
  tomentose 
  

  

  