﻿I 
  

  

  27G 
  Index 
  to 
  American 
  botanical 
  literature 
  

  

  Peltier, 
  G. 
  S. 
  Snapdragon 
  rust. 
  Bull. 
  Univ. 
  Illinois 
  Agr. 
  Exper. 
  Sta 
  

  

  /. 
  i-S- 
  Au 
  1919. 
  

  

  W 
  

  

  Fermentation 
  of 
  fructose 
  by 
  Lacfo- 
  

  

  J 
  

  

  pentoaceiicus, 
  n. 
  sp. 
  Jour. 
  Biol. 
  Chem. 
  41: 
  431-450./ 
  

  

  Purpus, 
  J. 
  A. 
  Fachy 
  phylum 
  ovifemm 
  J. 
  A. 
  Purpus, 
  nov. 
  spec. 
  IMonats. 
  

   Kakteenk. 
  29: 
  100-103. 
  S 
  1919. 
  

  

  Ramaley, 
  F. 
  Subalpine 
  lake-shore 
  vegetation 
  in 
  north-central 
  Col- 
  

   orado. 
  Am. 
  Jour. 
  Bot. 
  7: 
  57-73./. 
  /-(5. 
  10 
  Mr 
  1920. 
  

  

  1, 
  L. 
  C. 
  Some 
  Insect 
  relations 
  of 
  Bacillus 
  trachei- 
  

   Phytopathology 
  10: 
  133-140. 
  /. 
  /. 
  1920. 
  

  

  Rand 
  

  

  phihis 
  Erw. 
  Sm. 
  Phytop 
  

  

  Robbins, 
  W. 
  W., 
  & 
  Boyack, 
  B: 
  The 
  identification 
  and 
  control 
  of 
  Col- 
  

   orado 
  weeds. 
  Bull. 
  Colorado 
  Agr. 
  Exper. 
  Sta. 
  251: 
  5-123. 
  Jl 
  

   1919. 
  

  

  w 
  

  

  Roberts, 
  W. 
  American 
  plants 
  in 
  England. 
  Card. 
  Chron. 
  67: 
  52. 
  

   7 
  F 
  1920. 
  

  

  Rose, 
  D. 
  H., 
  Kraybill, 
  H. 
  R., 
  & 
  Rose, 
  R. 
  C. 
  Effect 
  of 
  salts 
  upon 
  oxidase 
  

   activity 
  of 
  apple 
  bark. 
  Bot. 
  Gaz. 
  69: 
  218-236. 
  /. 
  7-5. 
  16 
  Mr 
  1920. 
  

  

  Rosen, 
  H. 
  R. 
  A 
  bacterial 
  root-rot 
  of 
  field 
  corn. 
  Bull, 
  Univ. 
  Arkansas 
  

   Agr. 
  Exper. 
  Sta. 
  162: 
  1-6. 
  pi. 
  1-4. 
  Au 
  19 
  19. 
  

  

  Rosenbaum, 
  J. 
  Infefction 
  experiments 
  on 
  tomatoes 
  with 
  PhytopUhora 
  

   terrestria 
  Sherb., 
  and 
  a 
  hot 
  water 
  treatment 
  of 
  the 
  fruit. 
  Phytopath- 
  

   ology 
  10: 
  101-105. 
  1920. 
  ^ 
  

  

  Rosenbaum, 
  J., 
  & 
  Sando, 
  C. 
  E. 
  Correlation 
  between 
  size 
  of 
  the 
  fruit 
  

   and 
  the 
  resistance 
  of 
  the 
  tomato 
  skin 
  to 
  puncture 
  and 
  its 
  relation 
  

   to 
  infection 
  with 
  Macros 
  porium 
  tomato 
  Cooke. 
  Am. 
  Jour. 
  Bot. 
  7: 
  

   78-82. 
  10 
  Mr 
  1920. 
  

  

  Rumbold, 
  C. 
  Effect 
  on 
  chestnuts 
  of 
  substances 
  injected 
  Into 
  their 
  

  

  trunks. 
  Am. 
  T 
  

  

  10 
  Mr 
  1920. 
  

  

  St. 
  John, 
  H. 
  The 
  genus 
  Elodea 
  in 
  Xew 
  England. 
  Rhodora 
  22: 
  17- 
  

   29. 
  n 
  Mr 
  1920- 
  

  

  w 
  

  

  2 
  new 
  combinations. 
  

  

  SavelU, 
  R. 
  Contribuzione 
  alio 
  studio 
  della 
  pistillodia 
  ovulare. 
  Ann. 
  

   di 
  Bot. 
  15: 
  1-27. 
  pi. 
  I. 
  31 
  Ja 
  1920. 
  

  

  J. 
  D.- 
  The 
  relation 
  of 
  hairy 
  leaf 
  coverings 
  to 
  the 
  resistance 
  of 
  

  

  leaves 
  to 
  transpiration. 
  

  

  f'^-7' 
  J 
  

  

  