﻿148 
  COLLECTIONS 
  TOWARDS 
  

  

  nated, 
  3-nerved, 
  shortly 
  awned, 
  sericeously 
  ciliated 
  towards 
  the 
  base 
  ; 
  

   florets 
  stipitate, 
  the 
  stipe 
  sericeous 
  ; 
  stamina 
  three 
  ; 
  anthers 
  small, 
  pale 
  

   yellow 
  ; 
  stigmas 
  white, 
  filiform 
  and 
  simply 
  plumose. 
  — 
  Hab. 
  On 
  the 
  

   sands 
  of 
  the 
  ocean, 
  along 
  the 
  sea 
  coast 
  of 
  New 
  Jersey, 
  &c, 
  and 
  on 
  the 
  

   sand-bars 
  of 
  the 
  Arkansas 
  for 
  more 
  than 
  a 
  thousand 
  miles. 
  The 
  whole 
  

   aspect 
  of 
  this 
  plant 
  is 
  at 
  variance 
  with 
  Festuca, 
  and 
  it 
  ought, 
  apparently, 
  

   to 
  constitute 
  a 
  distinct 
  genus. 
  

  

  1. 
  Koeleria 
  tuberosa? 
  Persoon 
  (Aira 
  cristata, 
  Smith). 
  — 
  Obs. 
  Root 
  

   perennial, 
  fibrous 
  ; 
  leaves 
  smooth 
  or 
  pubescent 
  ; 
  stipules 
  membranaceous 
  ; 
  

   panicle 
  in 
  the 
  form 
  of 
  a 
  spike, 
  from 
  four 
  to 
  six 
  inches 
  in 
  length 
  ; 
  rachis 
  

   pubescent; 
  flowers 
  crowded; 
  calix 
  oblong, 
  2 
  to 
  3-flowered, 
  greenish 
  

   and 
  shining.- 
  — 
  Hab. 
  On 
  the 
  plains 
  of 
  Arkansas 
  and 
  Red 
  rivers. 
  — 
  Com- 
  

   mon. 
  K. 
  nitida, 
  Nuttall's 
  Genera 
  Am. 
  vol. 
  1, 
  p. 
  74. 
  

  

  2. 
  K. 
  paniculata, 
  Nuttall's 
  Gen. 
  Am. 
  Appendix. 
  (Aira 
  truncata. 
  

   Muhlenberg 
  ; 
  Aira 
  obtusata, 
  Elliott, 
  not 
  of 
  Michaux?) 
  

  

  Bromus 
  purgans 
  (B. 
  ciliatus, 
  Lin.). 
  — 
  Obs. 
  Leaves 
  partly 
  distichal. 
  

   1 
  . 
  Uniola 
  latifolia. 
  2. 
  U. 
  gracilis. 
  

  

  3. 
  U. 
  *multi 
  'flora. 
  Panicula 
  subspicata 
  rigida 
  ; 
  spiculis 
  longissimis 
  

   lanceolato-linearibus 
  numerosissime 
  floris; 
  culmo 
  brevi, 
  a 
  basi 
  ramosa; 
  

   foliis 
  subdistichis 
  subulatis 
  brevibus. 
  — 
  Hab. 
  On 
  the 
  sand 
  beaches 
  of 
  

   the 
  Arkansas, 
  above 
  the 
  garrison 
  — 
  Obs. 
  Perennial 
  ; 
  culm 
  terete, 
  radi- 
  

   cant 
  and 
  divided 
  towards 
  the 
  base 
  ; 
  leaves 
  alternate, 
  distichally 
  spread- 
  

   ing, 
  rather 
  short 
  and 
  subulate, 
  pale 
  green 
  ; 
  sheaths 
  short, 
  commonly 
  

   pilose 
  at 
  the 
  orifice 
  ; 
  stipules 
  obsolete 
  ; 
  panicle 
  spiked, 
  branchlets 
  short 
  

   andappressed 
  ; 
  calix 
  2-valved 
  ; 
  spikelets 
  often 
  an 
  inch 
  long, 
  and 
  scarcely 
  

   more 
  than 
  a 
  line 
  and 
  a 
  half 
  wide, 
  containing 
  from 
  sixteen 
  to 
  twenty- 
  

   four 
  florets; 
  external 
  corolla, 
  valves 
  ovate-acute, 
  concave, 
  opaque 
  and 
  

   smooth, 
  numerously 
  striate 
  and 
  scariose 
  along 
  the 
  margin 
  ; 
  anthers 
  

   three, 
  yellow; 
  many 
  of 
  the 
  glumes 
  abortive 
  of 
  seed. 
  This 
  species 
  

   possesses 
  all 
  the 
  habit 
  of 
  U. 
  spicata, 
  but 
  differs 
  essentially 
  by 
  the 
  

   magnitude 
  and 
  paucity 
  of 
  the 
  spikelets. 
  I 
  have 
  a 
  specimen 
  which 
  I 
  

   collected 
  on 
  the 
  plains 
  of 
  the 
  Missouri, 
  apparently 
  referable 
  to 
  this 
  

   species, 
  but 
  the 
  spikelets 
  are 
  ovate, 
  and 
  not 
  more 
  than 
  about 
  1 
  2-flowered. 
  

  

  1. 
  Melica 
  glabra, 
  Mich. 
  (M. 
  racemosa, 
  Muhl. 
  Gram. 
  Descript. 
  

   p. 
  88). 
  

  

  2. 
  M. 
  *scabra. 
  Foliis 
  latis 
  subpubescentibus 
  asperis; 
  panicula 
  

  

  