﻿310 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  13 
  

  

  Nyniphoides 
  peltahtm 
  (S. 
  P. 
  Gmel.) 
  Britten 
  & 
  Rendle. 
  Not 
  previously 
  

   recorded 
  from 
  the 
  state. 
  The 
  U. 
  S. 
  National 
  Herbarium 
  has 
  only 
  four 
  sheets 
  

   of 
  this 
  rare 
  plant. 
  Two 
  of 
  these 
  from 
  near 
  Washington, 
  D. 
  C, 
  from 
  a 
  station 
  

   where 
  the 
  plant 
  is 
  now 
  extirpated, 
  are 
  from 
  the 
  only 
  locality 
  mentioned 
  for 
  

   this 
  plant 
  in 
  the 
  7th 
  edition 
  of 
  Gra^^'s 
  Manual, 
  and 
  in 
  Britton 
  and 
  Brown's 
  

   Illustrated 
  Flora. 
  One 
  of 
  these 
  specimens 
  was 
  secured 
  August 
  7, 
  1894, 
  bv 
  A. 
  

   Fredholm 
  (No. 
  637), 
  the 
  other 
  on 
  September 
  27, 
  1895, 
  by 
  C. 
  L. 
  Pollard 
  (No. 
  

   710). 
  The 
  other 
  two 
  sheets 
  come 
  from 
  Gretna, 
  Louisiana, 
  collected 
  May 
  12, 
  

   1899, 
  by 
  C. 
  R. 
  Ball 
  (No. 
  378), 
  and 
  a 
  pond 
  near 
  St. 
  Louis, 
  Missouri, 
  collected 
  

   August 
  21, 
  1904, 
  by 
  M. 
  W. 
  Lyon, 
  Jr. 
  The 
  writer 
  found 
  this 
  plant 
  abundant 
  

   in 
  a 
  small 
  pond 
  in 
  Ironton, 
  Iron 
  County 
  (No. 
  826, 
  August 
  9, 
  1920). 
  

  

  Panicmn 
  bicknellii 
  Nash 
  (P. 
  bushii 
  Nash). 
  Fairlv 
  common 
  near 
  Prairie 
  

   Lake, 
  Papenville, 
  Bates 
  Countv 
  (No. 
  980, 
  September 
  10, 
  1920). 
  Collected 
  

   by 
  B. 
  F. 
  Bush, 
  McDonald 
  County, 
  July 
  24, 
  1893 
  (No. 
  413) 
  and 
  described 
  as 
  a 
  

   new 
  species, 
  P. 
  bushii 
  by 
  Nash 
  (26) 
  ; 
  possibly 
  the 
  only 
  other 
  record, 
  for 
  the 
  

   state 
  for 
  this 
  rare 
  plant 
  is 
  that 
  of 
  a 
  specimen 
  from 
  Eagle 
  Rock, 
  in 
  the 
  National 
  

   Herbarium, 
  also 
  collected 
  by 
  B. 
  F. 
  Bush 
  (No. 
  3246) 
  on 
  August 
  14, 
  190-5. 
  

  

  Paspalimi 
  plenipilum 
  Nash 
  (P. 
  praelongtmi 
  Nash). 
  Fairly 
  common 
  along 
  

   border 
  of 
  lake 
  near 
  Cedar 
  Gap, 
  Wright 
  County 
  (No. 
  915, 
  August 
  26, 
  1920) 
  ; 
  

   not 
  -previously 
  recorded 
  although 
  Missouri 
  comes 
  within 
  the 
  range 
  commonly 
  

   given. 
  The 
  species 
  is 
  also 
  represented 
  in 
  the 
  U. 
  S. 
  National 
  Herbarium 
  by 
  a 
  

   single 
  sheet 
  from 
  Missouri 
  taken 
  at 
  Paw 
  Paw 
  Junction, 
  September 
  4, 
  1877, 
  

   by 
  B. 
  F. 
  Bush 
  (No. 
  213). 
  

  

  Potamogeton 
  amplifolius 
  Tuckerm. 
  Not 
  definitely 
  recorded^ 
  before 
  from 
  

   the 
  state, 
  although 
  Missouri 
  comes 
  within 
  the 
  general 
  range 
  commonly 
  given. 
  

   Common 
  in 
  Gravais 
  Mills 
  Lake, 
  Morgan 
  County 
  (No. 
  888, 
  August 
  23, 
  1920), 
  

   and 
  rare 
  in 
  Hahatonka 
  Lake, 
  Camden 
  County 
  (No. 
  929, 
  August 
  27, 
  1920) 
  ; 
  

   in 
  both 
  cases 
  the 
  lakes 
  were 
  fed 
  by 
  cold 
  springs. 
  

  

  Potamogeton 
  crispus 
  L. 
  Not 
  previously 
  recorded 
  from 
  the 
  state 
  ; 
  represented 
  

   in 
  the 
  U. 
  S. 
  National 
  Herbarium 
  by 
  two 
  sheets 
  from 
  Hatchers^ 
  Ponds, 
  Neosho, 
  

   Newton 
  County, 
  May 
  28, 
  1903 
  (deposited 
  by 
  Fish 
  Commission). 
  This 
  plant 
  

   was 
  also 
  collected 
  by 
  the 
  writer 
  (No. 
  948, 
  September 
  6, 
  1920) 
  from 
  the 
  same 
  lo- 
  

   cality 
  where 
  it 
  has 
  long 
  been 
  established. 
  

  

  Potamogeton 
  J 
  olio 
  siis 
  Raf. 
  Apparently 
  common 
  throughout 
  the 
  state, 
  being 
  

   recorded 
  or 
  collected 
  from 
  Bell 
  Lake, 
  Boone 
  Countv 
  (No. 
  869, 
  August 
  21, 
  

   1920); 
  Gravais 
  Mills 
  Lake, 
  Morgan 
  County 
  (No. 
  885, 
  August 
  23, 
  1920); 
  

   Seequeeota 
  Lake, 
  Springfield, 
  Green 
  County 
  (No. 
  935, 
  August 
  29, 
  1920) 
  ; 
  

   Logan 
  Pond, 
  Billings, 
  Christian 
  Countv 
  (No. 
  940, 
  September 
  4, 
  1920) 
  ; 
  Lake 
  

   near 
  Rich 
  Hill, 
  Bates 
  County 
  (No. 
  993, 
  September 
  10, 
  1920) 
  ; 
  Bean 
  Lake, 
  

   Platte 
  County 
  (No. 
  1020, 
  September 
  22, 
  1920) 
  ; 
  Crescent 
  Lake, 
  Excelsior 
  

   Springs, 
  Clay 
  County 
  (No. 
  1057, 
  October 
  2, 
  1920) 
  and 
  Cemetery 
  Lake, 
  

   Macon, 
  Macon 
  County 
  (No. 
  1080, 
  October 
  9, 
  1920) 
  . 
  Apparently 
  only 
  known* 
  

   previously 
  from 
  Hiffner's 
  Lake, 
  near 
  Alberton, 
  Jackson 
  County 
  (3), 
  a 
  record 
  

   undoubtedly 
  based 
  on 
  a 
  sheet 
  in 
  the 
  National 
  Herbarium 
  collected 
  by 
  B. 
  F. 
  

   Bush 
  (No. 
  618, 
  July 
  9, 
  1896). 
  The 
  National 
  Herbarium 
  also 
  has 
  specimens 
  

   from 
  Poplar 
  Bluff, 
  July 
  27, 
  1892, 
  H. 
  Eggert; 
  Turner, 
  Green 
  County, 
  September 
  

  

  ^ 
  Reported 
  by 
  Eggert 
  (9), 
  but 
  it 
  is 
  not 
  definitely 
  stated 
  whether 
  the 
  locality 
  was 
  in 
  

   Missouri 
  or 
  Illinois. 
  

  

  * 
  Reported 
  by 
  Eggert 
  (9) 
  and 
  also 
  anonymously 
  (28) 
  in 
  vicinity 
  of 
  St. 
  Louis, 
  but 
  it 
  is 
  

   not 
  definitely 
  stated 
  whether 
  the 
  locality 
  was 
  in 
  Missouri 
  or 
  Illinois. 
  

  

  