﻿fro 
  

  

  1890.] 
  BOTANICAL 
  GAZETTE. 
  310 
  

  

  an 
  uncolored 
  or 
  white 
  plasmodium, 
  erects 
  into 
  salmon 
  or 
  

   buff 
  colored 
  immature 
  sporangia, 
  and 
  then 
  shades 
  into 
  the 
  

   chestnut 
  umber 
  color 
  of 
  maturity. 
  , 
  

  

  This 
  species 
  is 
  not 
  always 
  stipitate, 
  although 
  it 
  was 
  so 
  de- 
  

   scribed 
  by 
  Berkeley. 
  Sessile 
  specimens 
  are 
  not 
  uncommon, 
  

   and 
  in 
  many 
  instances 
  they 
  are 
  found 
  associated 
  with 
  others 
  

   which 
  are 
  stipitate 
  or 
  sub-stipitate, 
  all 
  having 
  the 
  same 
  small, 
  

   characteristic 
  spores. 
  

  

  Sifhopychmm 
  Casfaryi^osiiYi. 
  This 
  species 
  originates 
  

   m 
  an 
  uncolored 
  or 
  white 
  plasmodium, 
  erecting 
  into 
  imma- 
  

   ture 
  sporangia 
  of 
  a 
  dull 
  gray, 
  tinged 
  with 
  sienna 
  color,. 
  and 
  

   then 
  shades 
  through 
  various 
  tones 
  of 
  sienna 
  brown 
  to 
  the 
  dark 
  

   Drown 
  or 
  umber 
  of 
  maturity. 
  

  

  A 
  large 
  cEthalium 
  of 
  this 
  species 
  approaching 
  maturity 
  

   r'r^if^?^ 
  a 
  curious 
  and 
  striking 
  similarity 
  in 
  color 
  to 
  a 
  beau- 
  

   "tully 
  browned 
  roll 
  or 
  loaf 
  of 
  bread, 
  and 
  as 
  it 
  generally 
  grows 
  

   upon 
  the 
  surface 
  of 
  a 
  moss-covered 
  losr, 
  it 
  makes 
  a 
  conspic- 
  

   uous 
  object. 
  ^ 
  

  

  Although 
  the 
  necessities 
  of 
  a 
  systematic 
  arrangement 
  

   apparently 
  led 
  Rostafinski 
  to 
  place 
  the 
  genus 
  Siphoptychium 
  

   |n 
  his 
  order 
  Columelliferaj, 
  it 
  undoubtedly 
  bears 
  a 
  closer 
  re- 
  

   'ation 
  to 
  the 
  genus 
  Tubulina 
  than 
  to 
  any 
  other, 
  and 
  should 
  

   De 
  classified 
  with 
  it 
  or 
  near 
  it. 
  The 
  spores 
  are 
  of 
  the 
  char- 
  

   ctenstic 
  Tubulina 
  type, 
  with 
  the 
  epispores 
  sculptured 
  with 
  

  

  irregularly 
  meshed 
  reticulation. 
  The 
  sporangia 
  much 
  

   ?^J^°'e 
  externally 
  those 
  of 
  Tubulina 
  cylindrica 
  (form 
  no. 
  

  

  ti 
  h 
  1 
  ^^^^ 
  ^™'" 
  ^^^"^ 
  '" 
  h^mg 
  provided 
  with 
  a 
  central 
  

   ]p\^.!" 
  columella 
  from 
  which 
  radiate 
  a 
  few 
  threads 
  or 
  tub- 
  

   ges,iike 
  stays 
  connecting 
  it 
  with 
  the 
  walls 
  of 
  the 
  sporangia, 
  

   an/ 
  ^"^^^^^^ 
  examination 
  it 
  maybe 
  seen 
  that 
  these 
  columellas 
  

   son 
  -^^ 
  tubules 
  are 
  apparently 
  the 
  remains 
  of 
  individual 
  

   porangia 
  aborted 
  in 
  the 
  course 
  of 
  the 
  evolution 
  of 
  the 
  

   anrlTi,' 
  ^"^ 
  ^^^ 
  "°^ 
  ^^ 
  t^^^ 
  same 
  character 
  as 
  the 
  columellas 
  

   tial 
  ^^^^^ 
  «f 
  other 
  members 
  of 
  the 
  Columelliferas. 
  In 
  par- 
  

   gg./ 
  ^?^^"oj^oration 
  of 
  this 
  view, 
  may 
  be 
  cited 
  the 
  fact 
  that 
  

  

  to 
  on 
  Vir^'P^^P^-'''^^^^^"^ 
  ^^^ 
  ^ovixxe,, 
  in 
  which 
  from 
  one-third 
  

   and 
  ^^ 
  ^^ 
  o^ 
  the 
  component 
  sporangia 
  lack 
  both 
  columellas 
  

   lina.^°^^^^^^"^ 
  threads, 
  resembling 
  so 
  far 
  the 
  genus 
  Tubu- 
  

  

  lina 
  r%^*^T^^' 
  ^ 
  ^2iVQ 
  in 
  my 
  possession 
  a 
  specimen 
  of 
  Tubu- 
  

   of 
  s„^^^^^^pca 
  (form 
  no. 
  i), 
  in 
  which 
  can 
  be 
  seen 
  a 
  number 
  

   or 
  thr^^J^S^^ 
  which 
  have 
  either 
  vertical 
  membranous 
  septa 
  

   contr? 
  , 
  5 
  crossing 
  from 
  side 
  to 
  side. 
  There 
  are 
  also 
  a 
  few 
  

   in 
  thr 
  ^^ 
  aborted 
  sporangia 
  which 
  serve 
  as 
  columellas, 
  

  

  center 
  of 
  larger 
  ones, 
  to 
  which 
  thev 
  are 
  united 
  with 
  

  

  