﻿EEPOKT 
  OF 
  THE 
  BOTANIST. 
  59 
  

  

  Yalsa 
  oinctula 
  C 
  <& 
  P. 
  n. 
  sp. 
  

  

  Pustulate 
  ; 
  perithecia 
  few, 
  clustered, 
  black 
  ; 
  ostiola 
  cylindrical, 
  

   thick, 
  piercing 
  the 
  whitish 
  disk 
  which 
  encircles 
  them 
  with 
  an 
  irregu- 
  

   lar 
  white 
  ring 
  ; 
  asci 
  clavate 
  ; 
  spores 
  fasciculate, 
  linear, 
  multinucleate, 
  

   at 
  length 
  three 
  to 
  seven-septate, 
  .0024' 
  long, 
  .0002' 
  broad. 
  

  

  Dead 
  branches 
  of 
  chestnut. 
  Guilderland. 
  May. 
  (Plate 
  2, 
  figs. 
  

   21-24.) 
  

  

  Yalsa 
  Feaxinicola 
  C. 
  <& 
  P. 
  n. 
  sp. 
  

  

  Pustulate, 
  perforating 
  the 
  epidermis 
  ; 
  perithecia 
  ovoid, 
  black, 
  cir- 
  

   culating; 
  ostiola 
  rather 
  long, 
  convergent, 
  somewhat 
  quadrisulcate 
  ; 
  

   asci 
  clavate 
  ; 
  spores 
  minute, 
  sausage-shaped, 
  crowded 
  at 
  the 
  apex 
  of 
  

   the 
  asci. 
  

  

  Ash 
  branches. 
  Tyre. 
  September. 
  

  

  Yalsa 
  Linder^e 
  n. 
  sp. 
  

  

  Pustules 
  small, 
  rather 
  prominent, 
  crowded 
  or 
  scattered, 
  closely 
  

   surrounded 
  by 
  the 
  ruptured 
  epidermis, 
  circumscribed 
  by 
  a 
  black 
  line 
  ; 
  

   ostiola 
  crowded, 
  short, 
  dull 
  black, 
  obliterating 
  the 
  blackish 
  disk 
  ; 
  

   perithecia 
  usually 
  four 
  to 
  six, 
  nestling 
  in 
  the 
  inner 
  bark 
  ; 
  asci 
  slender, 
  

   clavate; 
  spores 
  eight, 
  yellowish 
  in 
  the 
  mass, 
  cylindrical, 
  curved, 
  

   obtuse, 
  .0003'-.0005 
  A 
  long. 
  

  

  Dead 
  branches 
  of 
  the 
  spice 
  bush, 
  Lindera 
  Benzoin. 
  Albany. 
  

   July. 
  , 
  

  

  Yalsa 
  leptasca 
  P. 
  & 
  C. 
  n. 
  sp. 
  

  

  Subpustulate, 
  blackish^ 
  erumpent 
  ; 
  perithecia 
  small, 
  numerous, 
  

   tapering 
  above 
  into 
  the 
  papillate 
  or 
  subcorneal 
  ostiola; 
  asci 
  elon- 
  

   gated, 
  cylindrical, 
  slender 
  ; 
  spores 
  uniseriate, 
  simple, 
  oblong 
  or 
  ellipti- 
  

   cal-oblong, 
  usually 
  binucleate, 
  colorless, 
  .0003' 
  long. 
  

  

  Dead 
  branches 
  of 
  Rhus 
  typhina. 
  Buffalo. 
  Clinton. 
  July 
  and 
  

   August. 
  

  

  Sometimes 
  the 
  pustules 
  are 
  confluent 
  or 
  effused, 
  in 
  which 
  case 
  the 
  

   plant 
  might 
  be 
  taken 
  for 
  a 
  Sphseria. 
  

  

  Sphjsria 
  Collinsii 
  Sohw. 
  

  

  Leaves 
  of 
  Amelanchier 
  Canadensis. 
  Center. 
  May. 
  

  

  This 
  remarkable 
  Sphseria 
  was 
  found 
  in 
  considerable 
  quantity 
  in 
  

   the 
  locality 
  mentioned. 
  It 
  attacks 
  all 
  the 
  leaves 
  on 
  an 
  affected 
  

   branch, 
  and 
  even 
  the 
  branch 
  itself 
  gives 
  indications 
  of 
  the 
  presence 
  

   and 
  influence 
  of 
  the 
  fungus. 
  It 
  is 
  more 
  or 
  less 
  contorted, 
  swollen 
  

   and 
  deflected 
  toward 
  the 
  ground. 
  The 
  upper 
  surface 
  of 
  the 
  leaves 
  

   assumes 
  a 
  dark-green 
  or 
  lurid 
  hue, 
  the 
  lower 
  surface 
  being 
  wholly 
  

   occupied 
  by 
  matted 
  filaments, 
  the 
  subiculum 
  of 
  the 
  Sphseria. 
  This 
  

  

  