﻿202 
  T. 
  Holm 
  — 
  Studies 
  in 
  the 
  Cyperacece. 
  

  

  most 
  frequently 
  two, 
  but 
  three 
  to 
  four 
  may 
  also 
  occur, 
  

   and 
  even 
  five, 
  though 
  very 
  seldom; 
  the 
  squamae 
  of 
  the 
  

   pistillate 
  flowers 
  vary 
  from 
  acute 
  to 
  aristate 
  (fig. 
  5), 
  and 
  

   their 
  color 
  varies 
  from 
  reddish 
  brown, 
  the 
  most 
  common, 
  

   to 
  dark 
  purplish. 
  Also 
  the 
  perigynium 
  exhibits 
  some 
  

   variation 
  with 
  respect 
  to 
  the 
  orifice 
  of 
  the 
  beak, 
  slightly 
  

   emarginate 
  to 
  distinctly 
  bidentate 
  (fig. 
  6), 
  as 
  well 
  as 
  the 
  

   venation, 
  the 
  marginal 
  veins 
  being 
  sometimes 
  the 
  only 
  

   ones 
  visible. 
  The 
  nut 
  is 
  always 
  prominently 
  stipitate. 
  

   In 
  the 
  very 
  copious 
  material, 
  which 
  we 
  have 
  received 
  

   from 
  Mr. 
  James 
  M. 
  Macoun, 
  collected 
  on 
  Vancouver 
  

   Island, 
  British 
  Columbia 
  and 
  Alberta, 
  and 
  from 
  Mr. 
  

   W. 
  N. 
  Suksdorf, 
  collected 
  in 
  the 
  mountains 
  of 
  Washing- 
  

   ton, 
  we 
  have 
  been 
  able 
  to 
  distinguish 
  some 
  forms 
  and 
  

   varieties 
  as 
  follows 
  : 
  

  

  forma 
  1. 
  chrysantha 
  nob. 
  — 
  Squamae 
  utriculique 
  fla- 
  

   vescentes, 
  caeterum 
  ut 
  forma 
  typica. 
  "Washington: 
  

   Mount 
  Paddo 
  at 
  an 
  elevation 
  of 
  2000 
  m. 
  

  

  forma 
  2. 
  alpina 
  nob. 
  — 
  Spiculae 
  breviores 
  ± 
  remotae 
  

   sessiles 
  vel 
  ima 
  pedunculata. 
  Squamae 
  plerumque 
  

   nigricantes. 
  (Fig. 
  15.) 
  Washington: 
  Mount 
  Paddo 
  at 
  

   an 
  elevation 
  of 
  2,300 
  m. 
  British 
  Columbia: 
  Vancouver 
  

   Island, 
  Alberta. 
  

  

  Var. 
  /3. 
  superb 
  a 
  nob. 
  — 
  Rhizoma 
  stoloniferum. 
  Cul- 
  

   mus 
  15-65 
  cm. 
  altus 
  apice 
  cernuus. 
  Spiculae 
  $ 
  2%-3 
  cm. 
  

   longae, 
  graciles, 
  inferiores 
  longe-pedunculatae, 
  fere 
  cer- 
  

   nuae, 
  nigricantes. 
  Squamae 
  atro-purpureae 
  e 
  carina 
  viridi 
  

   longe 
  scabro-aristatae. 
  Utriculi 
  squamis 
  latiores 
  aristis 
  

   breviores 
  stramineo-virides 
  atro-purpureo-maculati, 
  in 
  

   rostrum 
  breve 
  ore 
  bidentato 
  atro-purpureo 
  contracti. 
  

   (Figs. 
  10-12.) 
  Alberta: 
  Mount 
  Edith 
  Cavell, 
  Fitzhugh 
  

   Mt., 
  on 
  damp 
  slopes, 
  by 
  brooks 
  and 
  springs. 
  

  

  Var. 
  y 
  elegantula 
  nob. 
  — 
  Culmus 
  tenuis, 
  apice 
  cernuus. 
  

   Spiculae 
  2 
  laxiores 
  longe 
  capillari-pedunculatae, 
  cernuae. 
  

   Squamae 
  $ 
  emarginatae 
  aristatae. 
  Utriculi 
  squamis 
  la- 
  

   tiores 
  aristis 
  breviores 
  stramineo-virides 
  parce 
  atropur- 
  

   pureo-maculati 
  in 
  rostrum 
  breve 
  ore 
  emarginato 
  

   attenuati, 
  caeterum 
  ut 
  var. 
  /?. 
  (Figs. 
  13-14,) 
  British 
  

   Columbia: 
  Selese 
  Mt., 
  Chilliwack 
  Valley. 
  

   $ 
  Var. 
  8 
  gelida 
  nob. 
  — 
  Spiculae 
  2-4 
  crassiores, 
  contiguae 
  

   breviter 
  pedunculatae, 
  nigricantes. 
  Squamae 
  $ 
  mucron- 
  

   atae 
  atro-purpureae 
  e 
  carina 
  viridi 
  tenuissima 
  breviter 
  

   aristatae. 
  Utriculi 
  squamis 
  latiores 
  aristis 
  breviores 
  

   dense 
  atropurpureo-maculati 
  in 
  rostrum 
  breve 
  ore 
  emar- 
  

  

  