﻿554 
  Index 
  to 
  American 
  botanical 
  literature 
  

  

  Schlechter, 
  R. 
  Die 
  Orchideenfloren 
  der 
  siidamerikanischen 
  Kordil- 
  

  

  lerenstaaten, 
  I. 
  Venezuela. 
  Rep. 
  Spec. 
  Nov. 
  Regn. 
  Veg. 
  6: 
  i-ioo. 
  

   15 
  O 
  1919. 
  

  

  Includes 
  30 
  new 
  species 
  in 
  various 
  genera. 
  Also 
  contains 
  a 
  summary 
  of 
  botanical 
  

   collectors 
  in 
  Venezuela. 
  

  

  J 
  

  

  Schley, 
  E. 
  O. 
  Geo-presentation 
  and 
  geo-rcaction. 
  Bot. 
  Gaz. 
  70; 
  

   - 
  69-81./. 
  1-5. 
  24 
  Jl 
  1920. 
  

  

  H, 
  The 
  present 
  trend 
  of 
  forest 
  pathology. 
  Idaho 
  For. 
  

  

  Schmitz 
  

  

  1920: 
  13-17. 
  1920. 
  

  

  Schmitz, 
  H. 
  Shoe-string 
  root 
  rot 
  of 
  Rhododendron 
  and 
  Azalea 
  caused 
  

  

  by 
  Ar 
  miliaria 
  mellea 
  Vahl. 
  

  

  /. 
  I. 
  18 
  Au 
  

  

  1920 
  

  

  Schneider, 
  C. 
  Notes 
  on 
  American 
  willows. 
  VII. 
  Jour. 
  Arnold 
  

   Arb. 
  1: 
  147-171, 
  23 
  F 
  1920; 
  VIII. 
  i: 
  211-232. 
  5 
  My 
  1920. 
  

  

  Salix 
  orestera, 
  sp. 
  nov., 
  from 
  California. 
  

  

  The 
  temperature 
  interval 
  in 
  the 
  geographical 
  distrl- 
  

  

  W, 
  

  

  bution 
  of 
  marine 
  Algae. 
  Science 
  II. 
  52: 
  187-190. 
  27 
  Au 
  1920. 
  

  

  W 
  

  

  A., 
  & 
  Gardner, 
  N. 
  L. 
  The 
  marine 
  Algae 
  of 
  the 
  Pacific 
  

   coast 
  of 
  North 
  America.' 
  II. 
  Chlorophyceae. 
  Univ. 
  Calif. 
  Publ. 
  

  

  9-379- 
  Pl- 
  ^33- 
  14 
  Jl 
  

  

  W 
  

  

  Phycological 
  contributions. 
  I. 
  

  

  79-324- 
  pl' 
  21-31. 
  8 
  II 
  

  

  Cav. 
  

  

  W 
  

  

  Includes 
  I 
  new 
  genus 
  and 
  15 
  new 
  species 
  of 
  Algae. 
  

  

  Skottsherg, 
  C. 
  Zur 
  Morphologic 
  und 
  Systematik 
  der 
  Gattung 
  Arjona 
  

  

  Sv. 
  Bot. 
  Tidskn 
  lO; 
  520-528,/, 
  j-j. 
  1916. 
  

  

  H. 
  Observations 
  on 
  the 
  distance 
  of 
  spread 
  of 
  aeciospores 
  

   and 
  urediniospores 
  of 
  Cronarthim 
  ribicola. 
  Phytopathology 
  10: 
  

   358-364- 
  13 
  Au 
  1920. 
  

  

  Standley, 
  P. 
  C. 
  Stachys 
  lanala 
  in 
  Ontario. 
  Rhodora 
  22: 
  128. 
  3 
  Au 
  

   1920. 
  

  

  i 
  

  

  Stapf, 
  O. 
  Rihcs 
  nivcum. 
  Bot. 
  Mag. 
  pl. 
  884Q. 
  1920. 
  

   Stevens, 
  O. 
  A. 
  Uses 
  of 
  plants 
  by 
  the 
  Indians. 
  

  

  Jl 
  

  

  99-1 
  

  

  Stevenson, 
  J. 
  L. 
  Enfermedades 
  del 
  citro 
  en 
  Puerto 
  Rico, 
  Rev. 
  Agr. 
  

   Puerto 
  Rico 
  4^: 
  9-19. 
  Je 
  1920. 
  

  

  Stomps, 
  T. 
  J. 
  Uber 
  zwei 
  Typen 
  von 
  Weissrandbund 
  bei 
  Oenothera 
  

   biennis 
  L. 
  Zeitsch. 
  Ind. 
  Abst.- 
  und 
  Vererbungslehre 
  22: 
  261-274. 
  

   My 
  1920. 
  

  

  Stomps, 
  T. 
  S. 
  Uber 
  die 
  verschiedenen 
  Zustande 
  der 
  Pangene. 
  Biol. 
  

   Zentralbl. 
  37; 
  161-177. 
  30 
  Ap 
  1920. 
  

  

  