﻿A 
  FLORA 
  OF 
  ARKANSAS 
  TERRITORY. 
  147 
  

  

  P. 
  reptans, 
  but 
  remarkably 
  distinguished 
  by 
  its 
  conglomerated 
  and 
  

   almost 
  capitate 
  panicles, 
  which 
  give 
  it 
  almost 
  the 
  appearance 
  of 
  Crypsis 
  

   aculeata. 
  Annual 
  and 
  pilose 
  ; 
  culm 
  prostrate, 
  diffusely 
  branched, 
  striking 
  

   root 
  at 
  the 
  nodes 
  ; 
  leaves 
  lanceolate 
  and 
  very 
  acute, 
  distichal, 
  about 
  two 
  

   inches 
  long; 
  sheaths 
  very 
  short; 
  stipules 
  obsolete, 
  pilose; 
  female 
  

   flowers 
  spiked, 
  the 
  spikes 
  subcapitate 
  and 
  lobed 
  ; 
  male 
  panicle 
  acute, 
  

   the 
  spikelets 
  less 
  crowded, 
  compressed, 
  larger 
  than 
  those 
  which 
  are 
  

   styliferous, 
  and 
  all 
  3-nerved 
  after 
  the 
  manner 
  of 
  this 
  section, 
  with 
  

   which 
  it 
  arranges. 
  

  

  1. 
  Windsoria 
  poaeformis 
  (Poa 
  sesleroides, 
  Michaux). 
  

  

  2. 
  W. 
  *stricta. 
  Panicula 
  subspicata, 
  stricta, 
  multiflora 
  ; 
  calicibus 
  

   acuminatis, 
  spiculis 
  subquinquefloris 
  paulo 
  brevioribus. 
  — 
  Hab. 
  In 
  

   prairies, 
  near 
  the 
  town 
  of 
  Arkansas. 
  — 
  Obs. 
  Perennial 
  ; 
  leaves 
  long 
  and 
  

   smooth 
  ; 
  stipules 
  pilose 
  ; 
  culm 
  about 
  two 
  feet 
  high, 
  rigid, 
  1 
  or 
  2-jointed 
  ; 
  

   panicle 
  six 
  to 
  eight 
  inches 
  long, 
  crowded 
  with 
  numerous 
  and 
  short 
  

   branchlets, 
  appressed 
  to 
  the 
  culm 
  so 
  as 
  almost 
  to 
  resemble 
  a 
  spike. 
  

   Calix 
  acuminate, 
  nearly 
  the 
  length 
  of 
  the 
  spikelet 
  ; 
  each 
  valve 
  with 
  

   a 
  single 
  nerve 
  or 
  vein 
  ; 
  dorsal 
  valve 
  of 
  the 
  corolla 
  (as 
  usual) 
  densely 
  

   villous 
  along 
  the 
  lower 
  margins 
  and 
  back, 
  subtricuspidate, 
  the 
  central 
  

   cusp 
  alone 
  conspicuous. 
  

  

  Danthonia 
  spicata. 
  

  

  1. 
  Festuca 
  tenella, 
  (3 
  *glauca, 
  culmis 
  numerosis 
  foliosis. 
  — 
  Hab. 
  

   Fort 
  Smith. 
  Z.F.elatior. 
  3. 
  F.polystachia. 
  4. 
  F.diandra. 
  5. 
  F. 
  

   jiuitans. 
  

  

  6. 
  F. 
  *schtrea. 
  Panicula 
  spicata 
  elongata 
  ; 
  calicibus 
  subaequalibus 
  

   5 
  — 
  7-floris 
  ; 
  floribus 
  pubescentibus 
  longissime 
  aristatis 
  ; 
  foliis 
  setaceis 
  

   brevissimis. 
  — 
  Arkansas. 
  

  

  1. 
  *Diachroa. 
  Corolla 
  carinata, 
  substipitata, 
  membranacea; 
  val- 
  

   vula 
  exteriori 
  sub 
  apice 
  aristata, 
  dorso 
  margineque 
  utrinque 
  barbata. 
  

  

  2. 
  D. 
  procumbens 
  (Festuca 
  procumbens, 
  Muhlenberg). 
  — 
  Obs. 
  An- 
  

   nual. 
  Culm 
  prostrate, 
  compressed, 
  smooth, 
  the 
  panicle 
  ascending: 
  

   leaves 
  scabrous, 
  long 
  and 
  attenuated 
  ; 
  stipules 
  membranaceous, 
  lacer- 
  

   ated_; 
  panicle 
  partly 
  included 
  in 
  the 
  leaf-sheath, 
  the 
  rachis 
  scabrous 
  and 
  

   angular, 
  branches 
  undivided 
  and 
  rigid, 
  also 
  angular 
  ; 
  spikelets 
  alternate, 
  

   subsessile, 
  crowded; 
  calix 
  2-valved, 
  8 
  to 
  9-flowered, 
  valves 
  Unequal, 
  

   acute, 
  1-nerved; 
  corolla 
  2-valved, 
  aeruginous-purple 
  ; 
  dorsal 
  valve 
  cari- 
  

  

  