﻿Index 
  to 
  American 
  botanical 
  literature 
  133 
  

  

  + 
  

  

  Fink, 
  B. 
  Additions 
  to 
  lichen 
  distribution 
  in 
  North 
  America. 
  My- 
  

   cologla 
  II 
  : 
  296-307. 
  13 
  D 
  1919. 
  

  

  Prost, 
  H. 
  B. 
  Mutation 
  in 
  Malthiola. 
  Univ. 
  Calif. 
  Publ. 
  Agr. 
  Sci, 
  

   2: 
  81-190. 
  pi. 
  22~3S. 
  24 
  N 
  1919. 
  

  

  [Gleason, 
  H. 
  A.] 
  The 
  history 
  of 
  the 
  London 
  plane. 
  Jour. 
  N. 
  Y. 
  Bot. 
  

   Gard. 
  20: 
  216-220. 
  N 
  1919. 
  

  

  Gonzalez, 
  P. 
  EI 
  mal 
  del 
  Phtano. 
  Rev. 
  Agr. 
  Puerto 
  Rico 
  3: 
  51- 
  

   55' 
  1919- 
  [lilust.] 
  

  

  Oriffin, 
  G. 
  J, 
  Bordered 
  pits 
  in 
  Douglas 
  fir: 
  a 
  study 
  of 
  the 
  position 
  of 
  

   the 
  torus 
  in 
  mountain 
  and 
  lowland 
  specimens 
  in 
  relation 
  to 
  creosote 
  

   I 
  penetration. 
  Jour. 
  Forestry 
  17: 
  813-822. 
  /. 
  i, 
  N 
  1919. 
  

  

  Hall, 
  H. 
  M., 
  & 
  Grinnell, 
  J. 
  Life 
  zone 
  indicators 
  in 
  California. 
  Proc. 
  

   Calif. 
  Acad. 
  Sci. 
  9: 
  37-67. 
  16 
  Je 
  1919. 
  

  

  Hansen, 
  R. 
  Note 
  on 
  the 
  flagellation 
  of 
  the 
  nodule 
  organisms 
  of 
  the 
  

   Leguminosae. 
  Science 
  11. 
  50: 
  568, 
  569. 
  19 
  D 
  1919. 
  

  

  Harshberger, 
  J. 
  W- 
  Slope 
  exposure 
  and 
  the 
  distribution 
  of 
  plants 
  in 
  

   eastern 
  Pennsylvania. 
  Bull. 
  Geog. 
  Soc 
  Philadelphia 
  17: 
  53-61. 
  

  

  /. 
  1-4. 
  Ap 
  1 
  91 
  9. 
  

  

  Harshberger, 
  J. 
  W., 
  & 
  Bums, 
  V. 
  G. 
  The 
  vegetation 
  of 
  the 
  Hacken- 
  

   sack 
  marsh: 
  atypical 
  American 
  fen. 
  Trans. 
  Wagner 
  Free 
  Inst. 
  

   Sci. 
  Philadelphia 
  9: 
  1-35. 
  /. 
  i-r4. 
  My 
  igig. 
  

  

  Harter, 
  L. 
  L., 
  & 
  Weimer, 
  J. 
  L. 
  The 
  surface 
  rot 
  of 
  sweet 
  potatoes. 
  

   Phytopathology 
  9: 
  465-469. 
  pL 
  35. 
  5 
  N 
  1919. 
  

  

  Hawkins 
  

  

  Physiological 
  study 
  of 
  the 
  parasitism 
  

  

  of 
  Pylhitim 
  debaryanum 
  Hesse 
  on 
  the 
  potato 
  tuber. 
  Jpur. 
  Agr. 
  

   Research 
  18: 
  275-297. 
  pL 
  35-3? 
  -f-/ 
  A 
  ^- 
  ^^ 
  ^ 
  ^9^9- 
  

  

  Hayes, 
  H. 
  K., 
  & 
  Olson, 
  P. 
  J. 
  First 
  generation 
  crosses 
  between 
  standard 
  

  

  . 
  Minnesota 
  corn 
  ^iarieties. 
  Minnesota 
  Agr. 
  Exp. 
  Sta. 
  Bull. 
  183: 
  

  

  1-22. 
  /. 
  I, 
  2. 
  Au 
  I9I9. 
  

  

  Hendricks, 
  H. 
  V. 
  Torsion 
  studies 
  in 
  twining 
  plants. 
  Bot. 
  Gaz. 
  68; 
  

  

  425-440. 
  /. 
  j-6. 
  20 
  D 
  1 
  91 
  9. 
  

   Hitchcock, 
  A. 
  S. 
  A 
  peculiar 
  species 
  of 
  Lasiacis. 
  Jour. 
  Washington 
  

  

  Acad. 
  Sci. 
  9: 
  35-38- 
  ig 
  ]a 
  i9^9- 
  

  

  Lasiacis 
  anomala 
  sp. 
  nov. 
  

  

  Holm, 
  T. 
  The 
  history 
  of 
  the 
  popular 
  name 
  "/louer 
  de 
  luce" 
  or 
  "fleur 
  

   de 
  lis" 
  of 
  the 
  iris. 
  Rhodora 
  21 
  : 
  i8o. 
  iSr. 
  24 
  N 
  1919- 
  

  

  Horton, 
  R. 
  E. 
  Rainfall 
  interceplion. 
  Mo. 
  Weather 
  Rev. 
  AT 
  ^03- 
  

   623. 
  /. 
  i-jy. 
  S 
  1919- 
  

  

  