﻿Vol. 
  XV. 
  

  

  July, 
  1890. 
  

  

  No. 
  7. 
  

  

  THE 
  

  

  Botanical 
  Gazette 
  

  

  EDITORS 
  : 
  

  

  JOHN 
  M. 
  COULTER, 
  Wabash 
  College, 
  Crawfordsvitle, 
  Ind. 
  

  

  CHARLES 
  R. 
  BARNES. 
  University 
  of 
  Wisconsin, 
  Madison, 
  Wi*. 
  

  

  J. 
  C. 
  ARTHUR, 
  Purdue 
  University, 
  Lafayette, 
  Ind. 
  

  

  CONTENTS: 
  

  

  ^•^tea 
  on 
  the 
  flora 
  of 
  the 
  Lake 
  Superior 
  region, 
  II. 
  E. 
  J. 
  3iU 
  

   ^UcwEaimilariaoncottoadilast.). 
  €ho. 
  F. 
  Atkinson 
  

  

  nljf^^^ 
  technique. 
  I, 
  Jaines 
  mis 
  Humphrey 
  ^ 
  „ 
  ^ 
  

  

  ^u 
  tneaature 
  of 
  certain 
  plant 
  diseases- 
  Alexander 
  LivmgtUm 
  Kean 
  

  

  y^ 
  rowtU 
  in 
  roots 
  of 
  Marsiiia 
  qnadriiolia 
  and 
  Equl-^tum 
  arvense 
  ,...^^^i^ 
  

  

  Jf 
  ' 
  - 
  2 
  

  

  ^sjsnR 
  abttclm 
  . 
  - 
  177 
  " 
  

  

  159 
  

  

  . 
  . 
  . 
  16« 
  

  

  . 
  174 
  

  

  

  I 
  

  

  ■ 
  ^ 
  the 
  honey-secreting 
  organs. 
  

   j^€ 
  Carter 
  - 
  Peronospora 
  Bubi 
  in 
  

   AC. 
  _a, 
  -Byron 
  D. 
  RaliOed—CjnmuTnB 
  

  

  c: 
  

  

  -^aiAX. 
  . 
  . 
  .180 
  

  

  ^;J5**'^^iag 
  of 
  biology 
  in 
  the 
  colleges 
  

   J^ 
  BniversiUea 
  of 
  the 
  U. 
  S. 
  

  

  ^^^ST 
  LiTSRAxnaa 
  . 
  180 
  

  

  1;, 
  ^^^an 
  plan 
  t 
  ^~ 
  ^ 
  ■ntributions 
  from 
  

   vr 
  '^atioaai 
  Herbanum—Diseases 
  of 
  

   ^ 
  ^— 
  Minor 
  notices, 
  

  

  ^«:r 
  -^iiXBS 
  184 
  

  

  ^ 
  '^ 
  ««. 
  Buda, 
  N, 
  L. 
  BriHon, 
  

  

  -Botaniml 
  Club 
  -l>erson«l 
  items-j 
  

   Prof. 
  OliTer's 
  -^" 
  -.^!«»'' 
  - 
  f-n^pt 
  of 
  

  

  The 
  new 
  ai 
  „ 
  n— 
  ;^i*^^ 
  

  

  tion— 
  Pittonift— 
  WUi 
  ^ 
  ^*^^^ 
  

   Iowa 
  Acad. 
  Sci. 
  

  

  CfMUEO 
  July 
  22.1 
  

  

  C^ftbd* 
  4 
  H93.UKir««eic, 
  Trnm^m 
  

  

  CBAWFOKMVILLS, 
  mPTAKA 
  

  

  