﻿Index 
  to 
  American 
  botanicvl 
  literature 
  323 
  

  

  Murrill, 
  W. 
  A. 
  What 
  is 
  cane 
  sugar? 
  Sci. 
  Am. 
  122: 
  399. 
  10 
  Ap. 
  

   1920. 
  

  

  Neumann, 
  F. 
  Leonhard 
  Fuchs, 
  physician 
  and 
  botanist, 
  1501-1566. 
  

   Smithson. 
  Rept. 
  1917: 
  635-647. 
  pL 
  /-/. 
  1919. 
  

  

  Noyes, 
  H. 
  A., 
  & 
  Weghorst, 
  J..H. 
  Residual 
  eflfects 
  of 
  carbon 
  dioxide 
  

   gas 
  additions 
  to 
  soil 
  on 
  roots 
  of 
  Lactuca 
  saliva. 
  Bot. 
  Gaz. 
  69: 
  

  

  332-336./. 
  1-5' 
  16 
  Ap 
  1920. 
  

  

  r 
  

  

  Oberholser, 
  H. 
  C., 
  & 
  McAtee, 
  W. 
  L. 
  Waterfowl 
  and 
  their 
  food 
  

   plants 
  in 
  the 
  sandhill 
  region 
  of 
  Nebraska. 
  U. 
  S. 
  Agric. 
  Dept. 
  

   Bull. 
  794: 
  1-77. 
  pi. 
  1-4, 
  23 
  Mr 
  1920. 
  

  

  Contains 
  lists 
  of 
  shore 
  and 
  aquatic 
  plants 
  by 
  McAtee, 
  here 
  separately 
  indexed. 
  

  

  Osborne, 
  T. 
  B., 
  & 
  Mendel, 
  L. 
  B. 
  Nutritive 
  factors 
  in 
  plant 
  tissues. 
  

   Jour. 
  Biol. 
  Chem. 
  41: 
  549-565. 
  Ap 
  1920. 
  

  

  Overholser, 
  E. 
  L., 
  & 
  Taylor, 
  R. 
  H. 
  Ripening 
  of 
  pears 
  and 
  apples 
  as 
  

   modified 
  by 
  extreme 
  temperatures. 
  Bot. 
  Gaz. 
  69: 
  275-296. 
  16 
  

   Ap 
  1920. 
  

  

  Pennell, 
  F. 
  W. 
  Scrophulariaceae 
  of 
  the 
  southeastern 
  United 
  States. 
  

   Proc. 
  Acad. 
  Nat. 
  Sci. 
  Phila. 
  71: 
  224-291. 
  1920. 
  

  

  New 
  species 
  and 
  varieties 
  in 
  Afzelia, 
  Agalinis, 
  Aureolaria, 
  Bucknera, 
  Gratioli, 
  

   Mecardona, 
  and 
  Schivalbea. 
  

  

  Popofif, 
  M. 
  Artificial 
  partheViogenesis 
  and 
  cell 
  stimulants. 
  Sci. 
  

   Anier. 
  Monthly 
  i: 
  312-316. 
  Ap. 
  1920. 
  

  

  Similarity 
  between 
  regeneration 
  of 
  wounds 
  and 
  phenomena 
  of 
  reproduction. 
  

  

  Reinking, 
  O. 
  A. 
  Higher 
  Basidiomycetes 
  from 
  the 
  Philippines 
  and 
  

  

  their 
  hosts. 
  Philipp. 
  Jour. 
  Sci. 
  15: 
  479-490- 
  N 
  I9I9- 
  

  

  Rock, 
  J. 
  F. 
  The 
  poisonous 
  plants 
  of 
  Hawaii. 
  Hawaiian 
  Forest. 
  & 
  

   Agr. 
  17: 
  59-62. 
  Mr 
  1920. 
  

  

  r 
  

  

  Rolfe, 
  R. 
  A. 
  Orchids 
  in 
  Costa 
  Rica. 
  Orchid 
  Rev. 
  28: 
  11. 
  1920. 
  

  

  Rudolfs/ 
  W. 
  Experiments 
  on 
  the 
  value 
  of 
  common 
  rock 
  salt 
  and 
  

  

  sulfur 
  for 
  killing 
  live 
  stumps. 
  Soil 
  Sci. 
  9: 
  181-186. 
  pi. 
  I, 
  2. 
  Mf 
  

  

  1920. 
  

   'Rudolfs, 
  W. 
  Influence 
  of 
  sodium 
  chloride 
  upon 
  the 
  physiological 
  

  

  changes 
  of 
  living 
  trees. 
  Soil 
  Sci. 
  8: 
  397-425- 
  Pi- 
  i'?- 
  N 
  1919- 
  

   SaflFord, 
  W. 
  E. 
  Natural 
  history 
  of 
  Paradise 
  Key 
  and 
  the 
  near-by 
  

  

  Everglades 
  of 
  Florida. 
  Smithson. 
  Report 
  1917: 
  377-434- 
  P^- 
  1-^4- 
  

  

  + 
  /. 
  7-J2. 
  1919. 
  

   Sando, 
  C. 
  E., 
  & 
  Bartlett, 
  H. 
  H. 
  Rutin, 
  the 
  flavone 
  pigment 
  of 
  EschoU- 
  

  

  zia 
  California 
  Cham. 
  Jour. 
  Biol. 
  Chem. 
  41: 
  495-50I. 
  pi. 
  6-7. 
  Ap 
  

  

  1920. 
  

  

  