﻿394 
  Williams: 
  Calymper^vceae 
  of 
  North 
  America 
  

  

  s 
  

  

  part 
  of 
  leaf, 
  mostly 
  rounded 
  or 
  truncate 
  above; 
  outer 
  perichaetial 
  

   leaves 
  much 
  like 
  stem-leaves 
  but 
  the 
  base 
  larger 
  and 
  irregularly 
  

   serrate 
  or 
  incised 
  above, 
  enclosing 
  a 
  few 
  very 
  small 
  inner 
  leaves 
  

   and 
  numerous 
  paraphyses; 
  seta 
  io-i2mm. 
  long, 
  often 
  bent, 
  slightly 
  

   rough 
  in 
  upper 
  half; 
  capsule 
  2 
  ram. 
  long; 
  lid 
  with 
  beak 
  one 
  half 
  

   the 
  capsule 
  in 
  length; 
  spores 
  rough, 
  up 
  to 
  20 
  jj. 
  in 
  diameter. 
  [Fig. 
  

   10.] 
  

  

  Type 
  locality: 
  Guiana. 
  

  

  Distribution: 
  Martinique, 
  Guadeloupe, 
  Jamaica, 
  Central 
  

  

  and 
  northern 
  South 
  America. 
  

  

  Illustration: 
  Schwaegr. 
  Suppl. 
  pL 
  p8, 
  

  

  II. 
  Calymperes 
  Levyaxum 
  Besch. 
  Ann. 
  Sci. 
  Nat. 
  VIII. 
  i: 
  290. 
  

  

  1895. 
  

  

  In 
  habit 
  somewhat 
  like 
  C 
  lonchophyllum 
  , 
  but 
  stems 
  longer, 
  

   I 
  cm. 
  or 
  more, 
  and 
  leaves 
  shorter, 
  8-10 
  mm. 
  long; 
  stem-leaves 
  

   from 
  an 
  oblong 
  base, 
  serrulate 
  on 
  margins, 
  about 
  i 
  mm. 
  long, 
  

   narrowed 
  into 
  a 
  ligulate-spatulate 
  point 
  six 
  to 
  eight 
  times 
  longer 
  

   with 
  broad, 
  mostly 
  acute, 
  serrulate 
  apex 
  and 
  thickened 
  border 
  

   serrulate 
  above, 
  becoming 
  nearly 
  or 
  quite 
  entire 
  below 
  the 
  middle; 
  

   costa 
  not 
  quite 
  percurrent, 
  smooth 
  on 
  both 
  sides 
  except 
  near 
  

   apex; 
  leaves 
  in 
  cross-section 
  showing 
  costa 
  with 
  eight 
  or 
  ten 
  

   guide-cells, 
  an 
  accessory 
  row 
  of 
  four 
  to 
  five 
  cells, 
  stereid 
  bands 
  

   above 
  and 
  below 
  with 
  differentiated 
  outer 
  cells, 
  and 
  a 
  leaf-blade 
  

   of 
  one 
  layer 
  of 
  cells, 
  with 
  a 
  cylindric 
  to 
  three-sided 
  border 
  of 
  

   eight 
  to 
  ten 
  rows 
  of 
  cells; 
  leaf-cells 
  rather 
  obscure 
  in 
  upper 
  leaf, 
  

   roundish 
  to 
  slightly 
  transversely 
  elongate, 
  mostly 
  3-4 
  pi 
  in 
  diameter 
  

   and 
  from 
  nearly 
  smooth 
  to 
  minutely 
  papillose 
  on 
  both 
  sides 
  

   teniolae 
  wanting; 
  cancellinae 
  nearly 
  filling 
  the 
  ovate 
  base, 
  of 
  

   mostly 
  square 
  cells, 
  at 
  apex 
  rounded 
  or 
  sometimes 
  acutely 
  angled; 
  

   fruit 
  unknown. 
  [Fig. 
  11.] 
  

  

  Type 
  locality: 
  Nicaragua. 
  

  

  Distribution: 
  known 
  only 
  from 
  the 
  type 
  locality 
  and 
  Cuba. 
  

  

  12. 
  Calymperes 
  fluviatile 
  Williams 
  sp. 
  nov. 
  

  

  Flowers 
  and 
  fruit 
  unknown: 
  growing 
  in 
  rather 
  stifT, 
  dark 
  

   green, 
  loose 
  mats; 
  stems 
  simple, 
  2-3 
  cm. 
  long, 
  with 
  inconspicuous 
  

   radicles; 
  in 
  cross-section 
  somewhat 
  triangular, 
  about 
  250 
  /x 
  in 
  

   diameter, 
  showing 
  a 
  distinct 
  central 
  strand 
  and 
  outer 
  walls 
  com- 
  

   posed 
  of 
  about 
  three 
  rows 
  of 
  thick-walled 
  cells; 
  leaves 
  when 
  dry 
  

   subtubulose 
  and 
  incurved 
  or 
  somewhat 
  crispate, 
  when 
  moist 
  

   widely 
  spreadmg, 
  oblong-lingulate, 
  entire, 
  3-3.5 
  mm. 
  long 
  by 
  a 
  

   httle 
  over 
  i 
  mm. 
  wide 
  about 
  half 
  way 
  up 
  the 
  leaf, 
  somewhat 
  

  

  