﻿196 
  Index 
  to 
  American 
  botanical 
  literature 
  

  

  tnell, 
  F. 
  W. 
  Scrophulariaceae 
  of 
  the 
  local 
  flora 
  — 
  I. 
  Torreya 
  19: 
  

   107-119. 
  7 
  Au 
  1919;— 
  II. 
  Torreya 
  19: 
  143-152. 
  17 
  S 
  1919; 
  

   III. 
  Torreya 
  19: 
  161-171- 
  28 
  O 
  1919;— 
  IV. 
  Torreya 
  19: 
  

   205-216. 
  18 
  D 
  1919; 
  — 
  V- 
  Torreya 
  19: 
  235-242. 
  22 
  Ja 
  1920. 
  

  

  Includes 
  9 
  new 
  species, 
  varieties 
  and 
  combinations 
  in 
  Gratiola, 
  Ilysanthes, 
  

   Hemtanthus, 
  Veroyiica, 
  and 
  Aureolaria, 
  

  

  Pritchard, 
  F. 
  S., 
  8c 
  Clark, 
  W. 
  B. 
  Effect 
  of 
  copper 
  soap 
  and 
  of 
  Bordeaux 
  

   soap 
  spray 
  mixtures 
  on 
  control 
  of 
  tomato 
  leaf 
  spot. 
  Phytopathology 
  

   9: 
  554-564./. 
  1-7. 
  21 
  Ja 
  1920. 
  

  

  r 
  

  

  Rippel, 
  A* 
  Der 
  Einfluss 
  der 
  Bodentrockenheit 
  auf 
  den 
  anatonuschen 
  

   Bau 
  der 
  Pflanzen. 
  Beih. 
  Bot. 
  Centralb. 
  36: 
  187-260./. 
  J-4- 
  25 
  

   O 
  1919. 
  

  

  Especially 
  of 
  Sinapis 
  alba 
  L. 
  

  

  Robbins, 
  W. 
  J., 
  & 
  Lathrop, 
  E. 
  C. 
  The 
  oxidation 
  of 
  vanillin 
  to 
  vanillic 
  

  

  acid 
  by 
  certain 
  soil 
  bacteria. 
  Siol 
  Sci. 
  7: 
  475-485./. 
  i. 
  Je 
  1919- 
  

   Rolfe, 
  R. 
  A, 
  Cycnoches 
  ventricosum 
  from 
  Chiriqui 
  [Panama]. 
  Orchid 
  

  

  r 
  

  

  Rev. 
  27: 
  175-176. 
  D 
  1919. 
  

  

  Rosen, 
  H. 
  R., 
  & 
  Kirby, 
  R. 
  S. 
  A 
  comparative 
  morphological 
  study 
  of 
  

   aecia 
  of 
  four 
  different 
  rusts 
  found 
  upon 
  barberries 
  in 
  North 
  America. 
  

   Phytopathology 
  9: 
  569-573- 
  P^- 
  3^'39 
  + 
  f- 
  i- 
  21 
  Ja 
  1920. 
  

  

  Aecidium 
  Butlerianum 
  Rosen 
  & 
  Arthur 
  sp. 
  nov. 
  

  

  Rush, 
  E. 
  F. 
  Desert 
  places 
  made 
  to 
  bloom. 
  Am. 
  Bot. 
  25: 
  135~^5^' 
  

   N 
  1919. 
  [Illust.] 
  

  

  Rydberg, 
  P. 
  A. 
  (Rosales) 
  Fabaceae. 
  Psoraleae. 
  N- 
  Am. 
  Fl. 
  24* 
  

   65-136. 
  22 
  Ja 
  1920. 
  

  

  Includes 
  new 
  species 
  in 
  Parosela 
  C46), 
  Thornhera 
  (4), 
  Peialostemon 
  (8), 
  Kuhms- 
  

   iera 
  (i), 
  

  

  St. 
  John, 
  Harold. 
  Two 
  color 
  forms 
  of 
  Lobelia 
  cardinalis 
  L. 
  Rhodora 
  

   21: 
  217-218. 
  8 
  Ja 
  1920. 
  

  

  Schertz, 
  F. 
  M. 
  A 
  chemical 
  analysis 
  of 
  Sudan 
  grass 
  seed. 
  Bot. 
  Gaz. 
  

   69: 
  72-82./. 
  I. 
  22 
  Ja 
  1920. 
  

  

  Scofield, 
  C. 
  S. 
  Cotton 
  rootrot 
  spots. 
  Jour. 
  Agr. 
  Research 
  18: 
  305- 
  

   310./. 
  1-7. 
  15 
  D 
  1919. 
  

  

  + 
  + 
  

  

  Seaver, 
  F. 
  J. 
  Photographs 
  and 
  descriptions 
  of 
  cup-fungi 
  — 
  VIII. 
  

   Elvela 
  infiila 
  and 
  Gyromitra 
  esculenta. 
  Mycologia 
  12: 
  1-5. 
  pi- 
  -'"• 
  

   Ja 
  1920. 
  

  

  Shapovalov, 
  M., 
  & 
  Edson, 
  H. 
  A. 
  Wound-cork 
  formation 
  in 
  the 
  potato 
  

   in 
  relation 
  to 
  seed-piece 
  decay. 
  Phytopathology 
  9: 
  483-496. 
  

   /. 
  1-3. 
  D 
  1919. 
  

  

  Small, 
  J. 
  K. 
  Lencothoe 
  Catesbaei. 
  Addisonia 
  4: 
  61-62. 
  pL 
  151. 
  

   31 
  D 
  1919. 
  * 
  

  

  