﻿Index 
  to 
  American 
  botanical 
  literature 
  87 
  

  

  SchultZyE. 
  S., 
  and 
  others. 
  Investigations 
  on 
  the 
  mosaic 
  disease 
  of 
  the 
  

   Irish 
  potato. 
  Jour. 
  Agr. 
  Research 
  17: 
  247-274. 
  pi. 
  A, 
  B, 
  25-30. 
  

   15 
  S 
  i'9i9. 
  

  

  Shapovalov, 
  M. 
  Is 
  the 
  common 
  potato 
  scab 
  controllable 
  by 
  a 
  mere 
  

   rotation 
  of 
  crops? 
  Phytopathology 
  9: 
  422-424. 
  /. 
  r. 
  10 
  1919. 
  

  

  Singleton, 
  E. 
  Flower-names, 
  Jour. 
  Internat. 
  Gard. 
  Club 
  3: 
  355-362. 
  

   S 
  1919. 
  

  

  ■ 
  

  

  Small, 
  J. 
  K. 
  Coastwise 
  dunes 
  and 
  lagoons. 
  Jour. 
  N. 
  Y. 
  Bot. 
  Gard. 
  

   20: 
  191-207. 
  O 
  1919. 
  

  

  **A 
  record 
  of 
  botanical 
  exploration 
  in 
  Florida 
  in 
  the 
  spring 
  of 
  1918." 
  

  

  Smith, 
  C. 
  P. 
  Studies 
  In 
  the 
  genus 
  Ltipimis 
  — 
  IV. 
  The 
  PusillL 
  Bull. 
  

   Torrey 
  Club 
  46: 
  389-410. 
  5 
  N 
  1919. 
  

  

  Smith, 
  G. 
  M. 
  A 
  second 
  list 
  of 
  algae 
  found 
  in 
  Wisconsin 
  lakes. 
  Trans. 
  

   Wisconsin 
  Acad. 
  Sci. 
  19: 
  614-645. 
  pi. 
  10-15. 
  1918. 
  

  

  Includes 
  the 
  new 
  genus 
  Plariktosphaeria 
  and 
  new 
  species 
  in 
  Asterococcus 
  (i), 
  

   Oocystis 
  (i), 
  Teiraedron 
  (i). 
  Characium 
  (i), 
  Chlorohoirys 
  (i) 
  and 
  Plankiospkaerla 
  (i). 
  

  

  Standley, 
  P. 
  C. 
  A 
  remarkable 
  new 
  Geranium 
  from 
  Venezuela. 
  Jour. 
  

   Washington 
  Acad. 
  Sci. 
  5: 
  600-602, 
  19 
  O 
  1915. 
  

  

  Geranium 
  Johnii 
  sp. 
  nov. 
  

  

  Steinberg, 
  R. 
  A. 
  A 
  study 
  of 
  some 
  factors 
  in 
  the 
  chemical 
  stimulation 
  

   of 
  the 
  growth 
  of 
  Aspergillus 
  niger. 
  Am. 
  Jour. 
  Bot. 
  6: 
  330-35^- 
  

   20 
  N 
  1919; 
  357-372. 
  22 
  N 
  1919- 
  

  

  Stevens, 
  F. 
  L. 
  Foot-rot 
  disease 
  of 
  wheat. 
  Historical 
  and 
  biblio- 
  

  

  graphic. 
  

  

  Illinois 
  Nat. 
  Hist. 
  Surv. 
  Bull. 
  13: 
  259-286. 
  /. 
  I. 
  1919. 
  

  

  Stevens, 
  N. 
  E., 
  & 
  Higgins, 
  C. 
  H. 
  Temperature 
  in 
  relation 
  to 
  quality 
  of 
  

   sweet 
  corn. 
  Jour. 
  Agr. 
  Research 
  17: 
  275-284./. 
  J. 
  15 
  S 
  1919. 
  

  

  Stout, 
  A. 
  B. 
  Tulip 
  droppers. 
  Jour. 
  Internat. 
  Gard. 
  Club 
  3: 
  463-472. 
  

  

  1919. 
  [Illust.] 
  

   Stuckert, 
  T. 
  Contributions 
  k 
  la 
  connaissance 
  de 
  la 
  Flore 
  Argentine. 
  

  

  Ann. 
  Conserv. 
  Jard. 
  Bot. 
  Geneve 
  20: 
  

  

  Four 
  new 
  species 
  in 
  Valeriana 
  are 
  described. 
  

  

  J 
  

  

  Thellung, 
  A. 
  Ein 
  neuer 
  Amarantus 
  aus 
  dem 
  Andinen 
  Sudamerlka. 
  

   Rep. 
  Spec. 
  Nov. 
  i6: 
  23, 
  24. 
  31 
  Au 
  1919- 
  

  

  Amarantus 
  Ataco 
  sp. 
  nov. 
  

  

  Thurston, 
  H. 
  W., 
  Jr. 
  Sex 
  in 
  the 
  Conjugatae 
  and 
  the 
  relative 
  frequency 
  

   of 
  the 
  different 
  types 
  of 
  conjugation. 
  Bull. 
  Torrey 
  Club 
  46: 
  

  

  441-446. 
  8 
  D 
  1919. 
  

   Turley, 
  H. 
  E. 
  New 
  fruit 
  fungi 
  found 
  on 
  the 
  Chicago 
  market. 
  Science 
  

  

  n. 
  50: 
  375, 
  376. 
  17 
  1919. 
  

  

  Turrill, 
  W. 
  B. 
  Botanical 
  results 
  of 
  Swedish 
  South 
  American 
  and 
  

   Antarctic 
  expeditions. 
  Kew 
  Bull. 
  Misc. 
  Inf. 
  1919: 
  268-279. 
  I9I9- 
  

  

  