﻿1890.] 
  BOTANICAL 
  GAZiCTTE, 
  39 
  

  

  New 
  mosses 
  of 
  North 
  America. 
  III. 
  

  

  F. 
  RENAULD 
  AND 
  J. 
  CARDOT. 
  

  

  (with 
  PI.ATES 
  V-A^IlO 
  

  

  Dicranella 
  Laiigloisii. 
  — 
  Cespitose, 
  pale 
  or 
  yellowish 
  green. 
  

   Stems 
  short, 
  4-7 
  mm. 
  long. 
  Leaves 
  small, 
  .75-1.25 
  mm. 
  

   long, 
  -25-. 
  35 
  mm. 
  broad, 
  crowded, 
  erect-spreading 
  when 
  

   moist, 
  appressed 
  when 
  dry, 
  from 
  an 
  oblong 
  base 
  shortly 
  

   acuminate, 
  blunt 
  at 
  the 
  denticulate 
  apex, 
  strongly 
  revolute 
  

   on 
  one 
  side, 
  slightly 
  reflexed 
  or 
  almost 
  plane 
  on 
  the 
  other; 
  

   costa 
  stout, 
  broad, 
  percurrent, 
  rounded 
  at 
  back 
  ; 
  cells 
  of 
  the 
  

   areolation 
  short, 
  rectangular 
  or 
  subrectangular 
  below, 
  elon- 
  

   gated, 
  4-7 
  times 
  longer 
  than 
  broad 
  above. 
  Pericha^tial 
  

   bracts 
  longer, 
  longer 
  acuminate 
  ; 
  costa 
  shortly 
  excurrent. 
  

   Pedicel 
  purple, 
  5-7 
  mm. 
  long. 
  Capsule 
  suberect, 
  oblong, 
  

   incurved, 
  reddish-brown, 
  constricted 
  under 
  the 
  orifice 
  w^hen 
  

   dry, 
  I 
  mm. 
  long, 
  -35-. 
  50 
  mm. 
  broad; 
  lid 
  large, 
  highly 
  con- 
  

   vex-conic, 
  with 
  an 
  oblique 
  beak. 
  Peristome 
  purple, 
  high, 
  teeth 
  

   bifid 
  to 
  above 
  the 
  middle 
  ; 
  annulus 
  none, 
  

  

  Louisiana: 
  Saint 
  Martinville, 
  on 
  the 
  ground 
  at 
  the 
  road- 
  

   sides 
  {A. 
  B. 
  Langlois). 
  

  

  Allied 
  to 
  D. 
  varia, 
  but 
  i^eadily 
  distinguished 
  by 
  the 
  

   stronger 
  habit, 
  the 
  leaves 
  much 
  shorter 
  and 
  more 
  shortly 
  

   acuminate, 
  obtuse 
  or 
  subobtuse 
  and 
  denticulate 
  at 
  the 
  apex, 
  

   the 
  rounded 
  costa 
  and 
  the 
  shorter 
  cells 
  of 
  the 
  areolation. 
  

  

  Dicranum 
  falcahtrn 
  Hedw. 
  var. 
  Hendersoni. 
  — 
  Pedicel 
  pur- 
  

   ple 
  below, 
  yellow 
  above. 
  

  

  Oregon: 
  Mt. 
  Hood, 
  moist 
  sunny 
  rocks 
  (Z. 
  /. 
  Jlender- 
  

   sou) 
  . 
  

  

  . 
  Dicranum 
  consobrinnra.— 
  Densely 
  cespitose, 
  yellowish 
  green. 
  

   Stems 
  erect, 
  simple 
  or 
  dichotomous, 
  tomentose, 
  5-8 
  cm. 
  long. 
  

   Leaves 
  rather 
  crowded, 
  secund 
  or 
  erecto-patent, 
  narrowly 
  

   lanceolate-subulate, 
  serrate 
  in 
  the 
  upper 
  half, 
  6-7 
  mm. 
  long, 
  

   .75-1 
  mm. 
  broad 
  at 
  base; 
  costa 
  serrate 
  at 
  back 
  toward 
  apex; 
  

   cell-walls 
  porose, 
  scarcely 
  thickened. 
  Pericheetial 
  bracts 
  

   sheathing, 
  truncate 
  or 
  emarginate 
  at 
  apex, 
  sometimes 
  muti- 
  

   cous, 
  generally 
  tipped 
  with 
  a 
  short 
  or 
  little 
  elongated 
  subula. 
  

   Pedicel 
  yellow, 
  subflexuous, 
  2-3 
  cm. 
  long. 
  Capsule 
  cernuous 
  

   or 
  horizontal, 
  narrowly 
  cylindraceous, 
  curved, 
  not 
  sulcate, 
  

   long 
  attenuate 
  below, 
  rufescent 
  w^hen 
  old, 
  3,50-4 
  ram. 
  long, 
  

   .50-.75 
  mm. 
  broad 
  ; 
  lid 
  long 
  subulate. 
  Male 
  plants 
  gem- 
  

   maceous, 
  nidulant 
  in 
  the 
  tomentum 
  of 
  the 
  female 
  stems. 
  

   Minnesota 
  (comm. 
  Josef 
  h 
  Henry). 
  

  

  