﻿^^9^*] 
  BOTANICAL 
  GAZETTE 
  

  

  57 
  

  

  New 
  mosses 
  of 
  North 
  America. 
  IV. 
  

  

  F. 
  KENAULD 
  AND 
  J. 
  CARDOT. 
  

  

  (with 
  plates 
  VIII 
  AND 
  IX.) 
  

  

  ■ 
  

  

  Bryura 
  extenuatum.— 
  In 
  loose, 
  yellowish 
  tufts. 
  Stems 
  de- 
  

   pressed, 
  radiculose, 
  branching 
  below 
  the 
  perichcetium 
  by 
  

   elongated 
  innovations 
  (15-30 
  mm. 
  long), 
  erect, 
  slender, 
  flex- 
  

   uous, 
  generally 
  attenuate 
  and 
  flagelliform. 
  Stem-leaves 
  

   distant, 
  equal, 
  erecto-patulous 
  when 
  moist, 
  imbricate 
  when 
  

   dry, 
  concave, 
  from 
  a 
  long 
  decurrent 
  base 
  ovate-lanceolate, 
  

   shortly 
  acuminate-cuspidate, 
  entire 
  or 
  subsinuate 
  toward 
  the 
  

   point, 
  1.50-2 
  mm. 
  long, 
  .50-.75 
  mm. 
  broad; 
  innovaiion- 
  

   leav^es 
  muchi 
  smaller 
  and 
  narrower; 
  margins 
  revolute 
  from 
  

   the 
  base 
  to 
  above 
  the 
  middle 
  ; 
  costa 
  excurrent 
  into 
  a 
  very 
  

   short 
  point, 
  or 
  vanishing 
  just 
  below 
  the 
  apex 
  ; 
  cells 
  of 
  the 
  

   areolation 
  rhomboidal 
  or 
  hexagonal, 
  3-4 
  times 
  longer 
  than 
  

   broad, 
  rectangular 
  at 
  base, 
  longer 
  and 
  narrower 
  on 
  the 
  mar- 
  

   gins, 
  but 
  not 
  forming 
  a 
  distinct 
  border. 
  Pedicel 
  flexuous, 
  

   25-35 
  ^^' 
  long, 
  reddish 
  below, 
  yellowish 
  above. 
  Capsule 
  

   pendulous, 
  narrowly 
  cylindrical, 
  constricted 
  below 
  the 
  

   mouth 
  w^hen 
  dry, 
  and 
  tapering 
  to 
  a 
  long 
  attenuate 
  neck 
  ; 
  lid 
  

   convex, 
  acutely 
  apiculate. 
  Teeth 
  pale 
  yellow 
  ; 
  internal 
  mem- 
  

   brane 
  very 
  broad 
  ; 
  segments 
  split, 
  cilia 
  2-3, 
  long 
  appendicu- 
  

   late, 
  Annulus 
  of 
  2-3 
  rows 
  of 
  cells. 
  Dioicous. 
  Male 
  plant 
  

   unknown. 
  

  

  Oregon: 
  Portland, 
  wet, 
  sunn}^ 
  bluffs 
  (L. 
  F. 
  Henderson). 
  

  

  This 
  plant 
  has 
  the 
  facies 
  of 
  some 
  Cladodium 
  (as 
  Bryiim 
  

   {CladodS) 
  fttrftirascens 
  R. 
  Br 
  ), 
  but 
  the 
  perfect 
  structure 
  of 
  its 
  

   peristome 
  compels 
  us 
  to 
  place 
  it 
  in 
  the 
  sect. 
  Eubryum. 
  By 
  

   the 
  form 
  of 
  the 
  capsule 
  it 
  is 
  related 
  to 
  B. 
  capillare 
  and 
  other 
  

   allied 
  species, 
  but 
  is 
  eit 
  first 
  sight 
  distinguished 
  by 
  its 
  elon- 
  

   gated, 
  slender 
  innovations, 
  and 
  its 
  ovate-lanceolate 
  and 
  long 
  

   decurrent 
  leaves* 
  

  

  Bryum 
  crassirameum. 
  (B. 
  crassum 
  Ren. 
  and 
  Card. 
  MSS., 
  

  

  non 
  H. 
  et 
  W.). 
  — 
  ^In 
  robust, 
  wide, 
  compact, 
  yellow^ish-green 
  

   tufts. 
  Stems 
  robust, 
  stout, 
  branched, 
  3-5 
  cm, 
  long. 
  Leaves 
  

   erect-patulous 
  when 
  moist, 
  imbricate 
  w^hen 
  dry, 
  ovate-lan- 
  

   ceolate, 
  shortly 
  acuminate, 
  not 
  decurrent, 
  very 
  entire 
  or 
  sub- 
  

   sinuate 
  at 
  apex, 
  2-3 
  mm. 
  long, 
  1-1.50 
  mm. 
  broad; 
  margins 
  

   rev^olute 
  from 
  the 
  base 
  to 
  near 
  the 
  apex 
  ; 
  costa 
  percurrent 
  or 
  

   vanishing 
  just 
  below 
  the 
  point 
  ; 
  cells 
  of 
  the 
  areolation 
  rec- 
  

  

  