﻿1^9°- 
  J 
  BOTANICAL 
  GAZETTE. 
  

  

  Order 
  labels 
  are 
  printed 
  in 
  heavy-faced 
  capitals 
  followed 
  bv 
  the 
  niim- 
  

   ber 
  of 
  the 
  order. 
  This 
  is 
  pasted 
  on 
  the 
  center 
  of 
  the 
  flap 
  n 
  the 
  ord?r 
  

   IS 
  entirely 
  exotic, 
  the 
  label 
  is 
  printed 
  in 
  red 
  ink. 
  The 
  same 
  color 
  is 
  used 
  

   for 
  foreign 
  genera, 
  as 
  described 
  below. 
  This 
  device 
  saves 
  a 
  large 
  

  

  amount 
  of 
  time 
  when 
  one 
  is 
  looking 
  over 
  the 
  shelves 
  for 
  American 
  

   plants. 
  

  

  The 
  genus 
  labels 
  are 
  of 
  two 
  kinds, 
  one 
  for 
  the 
  shelf-flaps 
  the 
  other 
  

   for 
  the 
  genus 
  covers 
  themselves, 
  both 
  printed 
  in 
  heavy-faced 
  type. 
  

  

  The 
  shelf 
  flap 
  genus 
  labels 
  consist 
  of 
  the 
  name 
  of 
  the 
  genus 
  preceded 
  

   by 
  Its 
  consecutive 
  number 
  in 
  Durand, 
  and 
  followed 
  by 
  its 
  number 
  in 
  the 
  

   order 
  to 
  which 
  it 
  belongs, 
  thus 
  : 
  

  

  4742. 
  Asclepias. 
  63. 
  

   These 
  labels 
  are 
  pasted 
  one 
  below 
  another 
  in 
  their 
  numerical 
  order 
  

   beginning 
  at 
  the 
  upper 
  left 
  corner 
  of 
  the 
  flap. 
  As 
  the 
  name 
  and 
  number 
  

   of 
  the 
  order 
  are 
  already 
  on 
  the 
  flap, 
  it 
  is 
  considered 
  unnecessary 
  and 
  un- 
  

   desirable 
  that 
  they 
  be 
  printed 
  with 
  the 
  name 
  of 
  each 
  genus. 
  The 
  au- 
  

   thority 
  for 
  the 
  genus 
  is 
  also 
  considered 
  entirely 
  unnecessary. 
  If 
  the 
  

   genus 
  is 
  wholly 
  exotic, 
  or 
  is 
  large, 
  and 
  one 
  or 
  more 
  shelves 
  contain 
  only 
  

   exotic 
  species, 
  their 
  labels 
  are 
  printed 
  in 
  red. 
  

  

  The 
  genus-cover 
  labels, 
  which 
  are 
  pasted 
  on 
  the 
  lower 
  left 
  corner 
  of 
  

   the 
  genus 
  cover, 
  contain 
  the 
  name 
  of 
  the 
  genus, 
  with 
  the 
  number 
  of 
  its 
  

   order 
  below, 
  and 
  its 
  consecutive 
  number 
  still 
  lower, 
  thus: 
  

  

  Asclepias 
  

  

  Order. 
  116 
  

   4742. 
  

   This 
  form 
  of 
  label 
  enables 
  one 
  to 
  know 
  precisely 
  to 
  what 
  place 
  to 
  re- 
  

   turn 
  a 
  bundle 
  of 
  specimens 
  which 
  has 
  been 
  taken 
  from 
  the 
  shelves. 
  

   The 
  number 
  of 
  the 
  order 
  is 
  inserted 
  as 
  being 
  often 
  desirable. 
  If 
  any 
  

  

  genus-cover 
  contains 
  entirely 
  foreign 
  species 
  its 
  label 
  is 
  printed 
  in 
  red. 
  

  

  In 
  this 
  system 
  but 
  few 
  complexities 
  occur. 
  Perhaps 
  the 
  least 
  rare 
  

   are 
  those 
  cases 
  in 
  which 
  a 
  genus 
  in 
  Durand 
  is 
  treated 
  by 
  American 
  au- 
  

   thorities 
  as 
  two 
  or 
  more 
  genera. 
  When 
  this 
  occurs 
  the 
  American 
  generic 
  

   names 
  are 
  adopted, 
  using 
  in 
  parenthesip, 
  the 
  numbers 
  of 
  the 
  genus 
  to 
  

   which 
  Durand 
  refers 
  the 
  American 
  genera. 
  

  

  The 
  use 
  of 
  Durand's 
  Index 
  seemed 
  at 
  first 
  to 
  be 
  objectionable 
  for 
  the 
  

   reason 
  that 
  the 
  Genera 
  Plantarum, 
  which 
  must 
  of 
  necessity 
  be 
  the 
  more 
  

   used 
  of 
  the 
  two 
  works, 
  had 
  a 
  difierent 
  numbering. 
  This 
  difficulty 
  has 
  

   been 
  removed 
  by 
  simply 
  renumbering 
  our 
  copy 
  with 
  ink. 
  

  

  This 
  is 
  to 
  be 
  done 
  also 
  with 
  our 
  copies 
  of 
  Gray's 
  Synoptical 
  Flora.. 
  

   Frederick 
  V. 
  Coville, 
  Assistant 
  Botanist, 
  U. 
  S. 
  Depirlment 
  of 
  Agriculture 
  

  

  Penicillium 
  and 
  corrosiFe 
  sublimate.— 
  Penicillium 
  has 
  a 
  way 
  of 
  up- 
  

   setting 
  all 
  " 
  facta 
  " 
  with 
  regard 
  to 
  the 
  habitat 
  of 
  fungi. 
  Dr. 
  J. 
  N. 
  Hurty, 
  of 
  

   Indianapolis, 
  has 
  sent 
  to 
  the 
  writer 
  a 
  flour 
  paste 
  which 
  he 
  prepares 
  and 
  

   which 
  contains 
  a 
  considerable 
  amount 
  of 
  mercuric 
  chloride, 
  completely 
  

  

  