﻿86 
  Index 
  to 
  American 
  botanical 
  literature 
  

  

  Pack, 
  C. 
  L. 
  Central 
  Park 
  trees 
  starving 
  to 
  death. 
  Am. 
  Forestry 
  25: 
  

   1391-1400. 
  O 
  1919. 
  [lUust.] 
  

  

  Palmer, 
  E* 
  J. 
  Texas 
  Pteridophyta 
  — 
  I. 
  Am, 
  Fern 
  Jour. 
  Q: 
  17-22. 
  

   14 
  Mr 
  1919; 
  — 
  II. 
  Am. 
  Fern 
  Jour. 
  9: 
  50-56. 
  5 
  Jl 
  1919; 
  — 
  m- 
  

   Am. 
  Fern 
  Jour. 
  9: 
  81-84. 
  11 
  1919. 
  

  

  Pammel, 
  L. 
  H. 
  Recent 
  literature 
  on 
  fungous 
  diseases 
  of 
  plants. 
  

   Trans, 
  Iowa 
  Hort. 
  Soc. 
  53: 
  185-225, 
  1918. 
  - 
  

  

  si, 
  L. 
  H, 
  The 
  willows 
  and 
  poplars 
  of 
  Iowa. 
  Trans. 
  Iowa 
  Hort. 
  

  

  amm 
  

  

  Soc, 
  53: 
  163-173. 
  igi8. 
  [Illust.] 
  

   Perez, 
  B. 
  Contribucion 
  al 
  estudio 
  de 
  la 
  Caesalpinia 
  melanocaypa 
  

   Griseb. 
  (Guayacan), 
  Publ, 
  Univ, 
  Tucuman 
  6: 
  17-24. 
  1918. 
  

  

  ■pus, 
  J. 
  I 
  

   nov. 
  M 
  

  

  hiapenszs 
  J. 
  A. 
  

   1918. 
  [Illust.] 
  

  

  Quehl, 
  L. 
  Mamillaria 
  Schelhasei 
  Pfeiff. 
  Monats. 
  Kakteenk. 
  27: 
  

  

  J 
  4 
  

  

  71, 
  72. 
  My 
  1919. 
  

   Ramaley, 
  F. 
  Vegetation 
  of 
  undrained 
  depressions 
  on 
  the 
  Sacramento 
  

   plains. 
  Bot. 
  Gaz. 
  68: 
  380-387. 
  /. 
  i. 
  I'j 
  N 
  1919. 
  

  

  r 
  

  

  Rigg, 
  G. 
  B., 
  & 
  Thompson, 
  T, 
  G. 
  Colloidal 
  properties 
  of 
  bog' 
  water. 
  

   Bot. 
  Gaz. 
  68; 
  367-379. 
  17 
  N 
  1919. 
  

  

  _ 
  * 
  _ 
  ~ 
  

  

  1 
  

  

  Roberts, 
  H. 
  F. 
  Farm 
  seeds 
  and 
  weeds. 
  Kansas 
  Agr. 
  Bien, 
  Rep. 
  21: 
  

  

  284-303. 
  /. 
  I33-IS2. 
  I9I9. 
  , 
  

  

  h 
  

  

  Robinson, 
  B. 
  L. 
  On 
  tropical 
  American 
  Compositae, 
  chiefly 
  Eupato- 
  

   rieae, 
  Proc. 
  Am. 
  Acad. 
  Sci. 
  55: 
  1-41. 
  12 
  N 
  1919. 
  

  

  New 
  species 
  are 
  described 
  in 
  Ophryosonis 
  (2), 
  Eupatorium 
  (37) 
  and 
  Brickellia 
  (i)- 
  

  

  Robinson, 
  B. 
  L. 
  A 
  recension 
  of 
  the 
  Eupatoriums 
  of 
  Peru. 
  Proc. 
  Am. 
  

   Acad. 
  Sci. 
  55: 
  42-88. 
  N 
  1919. 
  

  

  Includes 
  Helogyne 
  straminea, 
  comb. 
  riov. 
  ' 
  

  

  Sargent, 
  C. 
  S. 
  Notes 
  from 
  the 
  Arnold 
  Arboretum. 
  Jour. 
  Internat. 
  

   Gard. 
  Club 
  3: 
  473-488. 
  1919. 
  [Illust.] 
  

  

  r 
  

  

  Schneider, 
  C. 
  Notes 
  on 
  American 
  willows— 
  VI. 
  Jour.* 
  Arnold 
  

   Arbor, 
  i: 
  67-97. 
  O 
  1919. 
  

  

  Salix 
  Jepsonii 
  and 
  S, 
  delnortensis, 
  spp, 
  nov,, 
  are 
  described. 
  

  

  Schorger, 
  A. 
  W* 
  Contribution 
  to 
  the 
  chemistry 
  of 
  American 
  conifers. 
  

   Trans. 
  Wisconsin 
  x\cad. 
  Sci. 
  19; 
  728-766. 
  191 
  9. 
  

  

  Sears, 
  F» 
  C* 
  Productive 
  orcharding, 
  i-xiv 
  + 
  1-3 
  15. 
  f^^-^SS- 
  ^^^^' 
  

   delphia. 
  4 
  Mr 
  1919. 
  

  

  Second 
  edition, 
  revised, 
  contains 
  chapter 
  on 
  diseases 
  of 
  trees. 
  

  

  Schuette, 
  H. 
  A. 
  A 
  biochemical 
  study 
  of 
  the 
  plankton 
  of 
  Lake 
  Mendota 
  

   Trans. 
  Wisconsin 
  Acad, 
  Sci. 
  19: 
  594-613. 
  1918. 
  

  

  