﻿r 
  

  

  Index 
  to 
  American 
  botanical 
  literature 
  439 
  

  

  Schmid, 
  G. 
  Ein 
  Hilfsmittel 
  zum 
  Unterscheiden 
  verschiedener 
  OsciU 
  

   laiorta- 
  und 
  Phormidtiim-arten. 
  Ber. 
  Deutsch. 
  Bot. 
  Ges. 
  37: 
  

   473-476. 
  25 
  F 
  1920. 
  

  

  Schmitz, 
  H, 
  Observations 
  on 
  some 
  common 
  and 
  important 
  diseases 
  

   of 
  the 
  rhododendron. 
  Phytopathology 
  10: 
  273-278.^/. 
  //. 
  i 
  Je 
  

  

  1920. 
  

  

  Schulz, 
  O. 
  E. 
  Cruciferae-Brassiceae 
  — 
  I. 
  Pflanzenreich 
  IV. 
  105 
  : 
  

   1-290./. 
  i-3S> 
  30 
  D 
  1919. 
  

  

  Shamel, 
  A. 
  D., 
  Scott, 
  L. 
  B., 
  Pomeroy, 
  C. 
  S., 
  & 
  Dyer, 
  C. 
  L. 
  Citrus- 
  

   fruit 
  improvement. 
  A 
  study 
  of 
  bud 
  variation 
  in 
  the 
  Lisbon 
  lemon. 
  

   U. 
  S. 
  Dept. 
  Agr. 
  Bull. 
  815: 
  1-70. 
  pL 
  1-8 
  +/. 
  1-14. 
  i 
  Je 
  1920. 
  

  

  r 
  

  

  Shive, 
  J. 
  W. 
  The 
  influence 
  of 
  various 
  salts 
  on 
  the 
  growth 
  of 
  soybeans. 
  

   Rep. 
  New 
  Jersey 
  Agr. 
  Exper. 
  Sta. 
  28: 
  288-293. 
  P^- 
  ^4- 
  X916. 
  

  

  Shreve, 
  E. 
  B. 
  A 
  thermo-electrical 
  method 
  for 
  the 
  determination 
  of 
  

   leaf 
  temperature. 
  Plant 
  World 
  22: 
  100-104./. 
  ■^~'^- 
  Ap 
  1919. 
  

  

  Shreve, 
  E. 
  B. 
  The 
  role 
  of 
  temperature 
  in 
  the 
  determination 
  of 
  the 
  

   transpiring 
  power 
  of 
  leaves 
  by 
  hygrometric 
  paper. 
  Plant 
  World 
  22: 
  

   172-180./. 
  /. 
  3 
  D 
  1919- 
  

  

  Shreve, 
  F. 
  A 
  comparison 
  of 
  the 
  vegetational 
  features 
  of 
  tw^o 
  desert 
  

   mountain 
  ranges. 
  Plant 
  World 
  22: 
  291-307./. 
  7. 
  10 
  Ap 
  1920. 
  

  

  ShuU, 
  C- 
  A. 
  Temperature 
  and 
  rate 
  of 
  moisture 
  intake 
  in 
  seeds. 
  Bot. 
  

   Gaz. 
  69: 
  361-390./. 
  1-4- 
  15 
  My 
  1920. 
  

  

  Small, 
  J. 
  K. 
  Pieris 
  floribu7ida. 
  Addisonia 
  5: 
  5, 
  6. 
  pL 
  16 
  j. 
  31 
  Mr 
  

   1920. 
  

  

  Small, 
  J. 
  K. 
  Cypress 
  and 
  population 
  in 
  Florida. 
  Jour. 
  N. 
  Y. 
  Bot 
  

  

  Card. 
  21: 
  81-86. 
  pi. 
  24S-247. 
  My 
  1920. 
  

  

  Smiley, 
  E. 
  W. 
  The 
  Phyllosticta 
  blight 
  of 
  snap-dragon. 
  Phyto- 
  

   pathology 
  10: 
  232-248./. 
  1-8. 
  Ap 
  1920. 
  

  

  r 
  

  

  Smith, 
  H. 
  L 
  James 
  M. 
  Macoun. 
  Science 
  II. 
  51: 
  478-480. 
  14 
  My 
  

   1920. 
  

  

  Smith, 
  R, 
  W. 
  Bulbils 
  of 
  Lycopodium 
  lucidulum, 
  Bot. 
  Gaz. 
  69: 
  

   426-457./, 
  1-21. 
  15 
  My 
  1920. 
  

  

  Stakman, 
  E, 
  C, 
  & 
  Krakover, 
  L. 
  J. 
  Puccinia 
  graminis 
  on 
  native 
  

   Berheris 
  canadensis. 
  Phytopathology 
  10: 
  305, 
  306. 
  i 
  Je 
  1920. 
  

  

  V 
  

  

  Standley, 
  P. 
  C. 
  Rusts 
  from 
  Glacier 
  National 
  Park, 
  Montana. 
  Myco- 
  

  

  logia 
  12: 
  143-148. 
  5 
  Je 
  1920, 
  

   Stewart, 
  F. 
  C. 
  Notes 
  on 
  New 
  York 
  plant 
  diseases 
  1 
  1. 
  New 
  York 
  

  

  Agr. 
  Exper. 
  Sta. 
  Bull. 
  463: 
  3-9. 
  pi. 
  1-2 
  D 
  1919. 
  

  

  