﻿88 
  Index 
  to 
  American 
  botanical 
  literature 
  

  

  ■ 
  

  

  Urban,!. 
  Sertum 
  antillanum— 
  VIII. 
  Rep. 
  Spec. 
  Nov. 
  i6: 
  32-42. 
  3^ 
  

   Au 
  1919. 
  

  

  Nine 
  American 
  species 
  are 
  described. 
  

  

  Vaupel, 
  P. 
  Aus 
  der 
  alten 
  Kakteenliteratur. 
  Monats. 
  Kakteenk. 
  

  

  29: 
  61-66. 
  Je 
  1919. 
  [Illust,] 
  

   Vaupel, 
  F. 
  Echinocaclus 
  Fiehrigii 
  Gijrke. 
  Monats. 
  Kakteenk. 
  28: 
  

  

  138-141. 
  1918. 
  [Illust.] 
  

   Vaupel, 
  F. 
  Echinocaclus 
  Mihanovichii 
  Fr. 
  et 
  G. 
  Monats. 
  Kakteenk. 
  

  

  29: 
  66. 
  Je 
  1919. 
  [Illust.] 
  

   Vinal, 
  W. 
  G. 
  Mainly 
  the 
  pedagogy 
  of 
  seeds 
  with 
  some 
  seeds 
  of 
  ped- 
  

  

  agogy 
  

  

  Nature-Study 
  Rev. 
  15: 
  213-232. 
  pi. 
  I, 
  2. 
  S 
  1919- 
  

  

  Vogel, 
  I. 
  H. 
  A 
  rose 
  graft 
  disease. 
  Phytopathology 
  9^ 
  403-412. 
  

  

  /. 
  1-6. 
  10 
  O 
  1919- 
  

   Vries, 
  H." 
  de. 
  Oenothera 
  Lamarckiana 
  erythrina, 
  eine 
  neue 
  Halb- 
  

  

  mutante. 
  Zeits. 
  Induk. 
  Abs. 
  & 
  Vererbungslehre 
  21: 
  91-118. 
  

  

  Jl 
  1919. 
  

   Vries, 
  H. 
  de. 
  Oenothera 
  Lamarckiana 
  mut. 
  simplex. 
  Ber. 
  Deuts. 
  

  

  Bot. 
  Gesells. 
  37: 
  65-73. 
  I5 
  My 
  1919. 
  

   Vries, 
  H. 
  de. 
  Uber 
  monohybride 
  Mutationen. 
  Biol. 
  Zentralb. 
  37 
  ^ 
  

  

  139-148. 
  Mr 
  1917. 
  

   Wakemam, 
  N. 
  A. 
  Pigments 
  of 
  flowering 
  plants. 
  Trans. 
  Wisconsm 
  

  

  Acad. 
  Sci. 
  19: 
  767-906. 
  1 
  919. 
  

  

  J 
  

  

  Weatherwax, 
  P. 
  Paraffin 
  solvents 
  in 
  histological 
  work. 
  Bot. 
  Gaz. 
  

  

  68: 
  305, 
  306, 
  16 
  O 
  1919. 
  

   Weingart, 
  W. 
  Rhipsalis 
  Purpusii 
  spec. 
  nov. 
  Monats. 
  Kakteenk. 
  

  

  28: 
  78-82. 
  1918. 
  [Illust.] 
  

   Weir, 
  J. 
  R. 
  Pathological 
  marking 
  rules 
  for 
  Idaho 
  and 
  Ivlontana. 
  

  

  Jour. 
  Forestry 
  17: 
  666-681. 
  O 
  1919. 
  

  

  Weir, 
  J. 
  R., 
  & 
  Hubert, 
  E. 
  E. 
  A 
  study 
  of 
  the 
  rots 
  of 
  western 
  white 
  

   pine. 
  U. 
  S. 
  Dept. 
  Agr. 
  Bull. 
  799: 
  1-24. 
  lo 
  N 
  1919. 
  

  

  Wemham, 
  H. 
  F. 
  Tropical 
  American 
  Rubiaceae— 
  X. 
  Jour. 
  Bot. 
  

   (Suppl.) 
  57: 
  17-24- 
  Ja 
  1919; 
  25-32. 
  F 
  1919; 
  33-44- 
  Mr 
  I9i9- 
  

  

  Thirty-two 
  new 
  species 
  in 
  Maneltia 
  are 
  described. 
  

  

  Weston, 
  W. 
  H. 
  Repeated 
  zoospore 
  emergence 
  in 
  Dictyuchus. 
  Bot. 
  

  

  Gaz. 
  68: 
  287-296, 
  pi. 
  2j 
  -4-/. 
  J. 
  16 
  O 
  1919. 
  

   Whetzel, 
  H. 
  H. 
  George 
  Francis 
  Atkinson. 
  Guide 
  to 
  Nature 
  12 
  : 
  70-72- 
  

  

  O 
  1919- 
  [Portrait.] 
  

   Wliitby, 
  S. 
  Variation 
  in 
  Hevea 
  brasiliensis. 
  Ann, 
  Bot- 
  33: 
  3^3^3^^' 
  

   Jl 
  1919- 
  

  

  