﻿388 
  Williams: 
  CAL-i^iPERACEAE 
  of 
  North 
  America 
  

  

  showing 
  about 
  two 
  rows 
  of 
  guide-cells 
  with 
  an 
  indefinite 
  number 
  

   of 
  smaller 
  accessory 
  cells 
  and 
  stereid 
  cells 
  in 
  one 
  or 
  two 
  rows 
  at 
  

   the 
  upper 
  and 
  under 
  surface; 
  leaf-cells 
  pale 
  throughout, 
  very 
  

   mamillose 
  on 
  the 
  upper 
  surface 
  and 
  smooth 
  or 
  papillose 
  on 
  the 
  

   under 
  side 
  to'the 
  cancellinae, 
  the 
  median 
  cells 
  hexagonal 
  to 
  round- 
  

   ish, 
  about 
  8 
  M 
  in 
  diameter; 
  teniolae 
  one 
  to 
  three 
  cells 
  in 
  from 
  the 
  

   margin, 
  usually 
  extending 
  from 
  the 
  upper 
  part 
  of 
  the 
  base 
  of 
  the 
  

   leaf 
  to 
  above 
  the 
  middle, 
  and 
  consisting 
  of 
  a 
  double 
  thickness 
  of 
  

   one 
  or 
  two 
  rows 
  of 
  elongate, 
  often 
  highly 
  mamillose 
  cells; 
  cancel- 
  

   linae 
  mostly 
  broad 
  and 
  more 
  or 
  less 
  rounded 
  above; 
  inner 
  peri- 
  

   chaetial 
  leaves 
  rather 
  longer 
  than 
  stem-leaves 
  and 
  with 
  a 
  smaller 
  

   base, 
  the 
  archegonia 
  and 
  filiform 
  paraphyses 
  numerous 
  ; 
  obclavate, 
  

   eight- 
  to 
  ten-celled 
  propagula 
  sometimes 
  occur 
  in 
  clusters 
  at 
  the 
  

   apex 
  of 
  the 
  costa. 
  [Fig. 
  2.] 
  

  

  Type 
  collected 
  in 
  the 
  Sierra 
  de 
  Gavilanes, 
  Santa 
  Clara 
  Province, 
  

   Cuba, 
  August, 
  1906, 
  Brothers 
  Leon 
  &* 
  Clement 
  6773 
  (herbarium 
  

   of 
  the 
  New 
  York 
  Botanical 
  Garden). 
  

  

  The 
  peculiar 
  cross-section 
  of 
  the 
  leaf 
  of 
  this 
  species 
  is 
  very 
  

   similar 
  to 
  that 
  of 
  C. 
  Dozyanum 
  Mitt, 
  of 
  Java. 
  

  

  3. 
  CAL^-iiPERES 
  EMERSUM 
  C. 
  Mull. 
  Bull. 
  Herb. 
  Boiss. 
  5: 
  189. 
  

  

  1897 
  

  

  In 
  broad, 
  lax, 
  dull-green 
  tufts 
  with 
  stems 
  about 
  1.5 
  cm. 
  high; 
  

   stem-leaves 
  about 
  4 
  mm. 
  long, 
  mostly 
  incurved, 
  scarcely 
  crispate 
  

   when 
  dry, 
  from 
  a 
  somewhat 
  wider, 
  or 
  in 
  the 
  lower 
  leaves 
  narrower, 
  

   oblong 
  or 
  obovate, 
  serrulate 
  base 
  extending 
  into 
  a 
  broad, 
  oblong- 
  

   Imear 
  pomt, 
  from 
  not 
  much 
  longer 
  than 
  basal 
  part 
  to 
  about 
  twice 
  • 
  

   longer, 
  with 
  rather 
  abruptly 
  acute, 
  serrulate 
  apex 
  and 
  costa 
  vanish- 
  

   mg 
  just 
  below 
  apex 
  or 
  when 
  bearing 
  propagulae, 
  excurrent 
  and 
  

   enlarged 
  into 
  a 
  stout 
  rough 
  point 
  with 
  the 
  propagulae 
  on 
  all 
  sides 
  

   near 
  apex; 
  costa 
  in 
  middle 
  of 
  leaf 
  about 
  one 
  tenth 
  the 
  width 
  of 
  

   leaf, 
  rough 
  on 
  both 
  sides 
  in 
  upper 
  half, 
  in 
  cross-section 
  showing 
  

   four 
  to 
  six 
  guide-cells, 
  stereid 
  bands 
  above 
  and 
  below 
  and 
  outer 
  

   cells 
  differentiated 
  on 
  both 
  sides; 
  blade 
  of 
  leaf 
  highly 
  mamillose 
  

   and 
  papillose 
  on 
  upper 
  side, 
  the 
  under 
  side 
  not 
  mamillose 
  but 
  

   finely 
  papillose; 
  cells 
  throughout 
  spreading 
  leaf-blade 
  distinct, 
  

   scarcely 
  or 
  not 
  elongate, 
  angular 
  to 
  roundish, 
  7-8 
  ix 
  in 
  diameter, 
  

   with 
  one 
  or 
  sometimes 
  two 
  papillae 
  on 
  each 
  surface; 
  teniolae 
  

   extending 
  from 
  or 
  near 
  the 
  base 
  to 
  near 
  the 
  abruptly 
  narrowed 
  

   apex 
  and 
  only 
  one 
  or 
  two 
  cells 
  in 
  from 
  margin 
  in 
  upper 
  leaf, 
  and 
  

   four 
  o 
  eight 
  cells 
  in 
  from 
  margin, 
  at 
  the 
  broadest 
  basal 
  part; 
  

   cancellinae 
  often 
  extending 
  nearly 
  one 
  half 
  up 
  leaf 
  next 
  costa 
  and 
  

   terminating 
  in 
  acute 
  angles; 
  "theca 
  hardly 
  emergent, 
  calyptra 
  

   finely 
  roughened 
  at 
  apex."— 
  C. 
  iHz7//er. 
  [Fig. 
  3.] 
  * 
  ' 
  -^^ 
  . 
  

  

  