﻿A 
  FLORA 
  OF 
  ARKANSAS 
  TERRITORY. 
  145 
  

  

  1. 
  Digit 
  aria 
  sanguinalis. 
  2. 
  D. 
  filiformis. 
  

   Cynodon 
  dadylon. 
  — 
  Hab. 
  Banks 
  of 
  the 
  Mississippi, 
  near 
  Fort 
  

   Adams 
  and 
  Natchez. 
  

  

  1. 
  Paspalum 
  setaceum. 
  2. 
  V.laeve. 
  3, 
  P. 
  purpurascens, 
  Elliott. 
  

  

  4. 
  P. 
  *racemosum, 
  villosum 
  ; 
  spicis 
  alternis, 
  brevibus, 
  culmo 
  appressis 
  ; 
  

   rachi 
  pilosa 
  immarginata; 
  floribus 
  bi-seriatis. 
  — 
  Hab. 
  The 
  grassy 
  plains 
  

   of 
  Red 
  river. 
  Flowering 
  in 
  June. 
  — 
  Obs. 
  Perennial; 
  leaves 
  short, 
  

   narrow 
  and 
  softly 
  pubescent 
  ; 
  culm 
  somewhat 
  naked, 
  eighteen 
  inches 
  

   to 
  two 
  feet 
  high; 
  spikes 
  about 
  five, 
  disposed 
  in 
  a 
  simple 
  raceme; 
  

   rachis 
  without 
  margin 
  ; 
  clavellate 
  receptacle 
  of 
  the 
  flowers 
  pilose 
  ; 
  calix 
  

   villous, 
  outer 
  valve 
  5-nerved. 
  

  

  5. 
  P. 
  stoloniferum. 
  — 
  Hab. 
  Inundated 
  banks 
  of 
  the 
  Arkansas 
  and 
  

   Mississippi. 
  

  

  Cenchrus 
  tribuloides. 
  

  

  Tripsacum 
  daelyloides. 
  A 
  common 
  grass 
  throughout 
  the 
  plains 
  of 
  

   the 
  Arkansas 
  territory, 
  and 
  an 
  important 
  nutriment 
  to 
  cattle. 
  This 
  

   species 
  is 
  not 
  apparently 
  distinct 
  from 
  the 
  monostachyon, 
  as 
  there 
  are 
  

   all 
  gradations, 
  from 
  one 
  to 
  several 
  spikes. 
  

  

  1. 
  Stipa 
  avenacea. 
  2. 
  S. 
  parviflora. 
  3. 
  S. 
  sericea. 
  

  

  1. 
  Aristida 
  stricta. 
  2. 
  A. 
  oligantha. 
  3. 
  A. 
  dichotoma. 
  4. 
  A. 
  

   pattens. 
  

  

  5. 
  A. 
  ^purpurea. 
  Panicula 
  erectiuscula 
  gracili 
  ; 
  cal. 
  valvulis 
  remotis 
  

   aristulatis 
  apice 
  bifidis 
  ; 
  aristis 
  capillaribus 
  longissimis 
  ; 
  foliis 
  brevibus 
  

   scabris. 
  — 
  Hab. 
  On 
  the 
  grassy 
  plains 
  of 
  Red 
  river, 
  in 
  arid 
  situations. 
  

   Flowering 
  in 
  May. 
  — 
  Obs. 
  Perennial; 
  leaves 
  narrow, 
  short 
  and 
  scabrous 
  ; 
  

   ligula 
  pilose 
  ; 
  culm 
  about 
  one 
  foot 
  high 
  ; 
  panicle 
  many 
  flowered, 
  a 
  little 
  

   spreading, 
  branches 
  capillary 
  ; 
  flowers 
  commonly 
  in 
  pairs 
  (after 
  the 
  

   manner 
  of 
  the 
  genus), 
  bluish 
  purple 
  ; 
  one 
  valve 
  of 
  the 
  calyx 
  nearly 
  

   double 
  the 
  length 
  of 
  the 
  other, 
  both 
  bifid 
  at 
  the 
  summit 
  and 
  shortly 
  

   awned, 
  the 
  longer 
  valve 
  exceeding 
  the 
  corolla 
  ; 
  awns 
  equal, 
  capillary, 
  

   nearly 
  three 
  times 
  the 
  length 
  of 
  the 
  corolla 
  and 
  scabrous; 
  corolla 
  

   minutely 
  stipitate. 
  

  

  Aira 
  obtusata, 
  Mich. 
  (A. 
  mollis, 
  Muhlenberg). 
  

  

  URALErsis 
  aristulata. 
  — 
  On 
  all 
  the 
  sand-bars 
  of 
  the 
  Arkansas; 
  

   common. 
  

  

  1. 
  Voxpratensis. 
  2. 
  P. 
  annua. 
  3. 
  P. 
  viridis. 
  4. 
  P. 
  nemoralis, 
  

   vol. 
  v. 
  — 
  2 
  M 
  

  

  