﻿88 
  

  

  BOTANICAL 
  GAZETTE. 
  [April, 
  

  

  apparently 
  confluent 
  group 
  of 
  species. 
  la 
  all 
  probability 
  they 
  freely 
  

   cross 
  with 
  one 
  another, 
  and 
  some 
  of 
  the 
  puzzling 
  intermediate 
  forms 
  

   may 
  be 
  hybrids. 
  C. 
  stolonifera 
  extends 
  both 
  east 
  and 
  west, 
  mingling 
  with 
  

   C. 
  pubescens 
  upon 
  the 
  Pacific 
  coast, 
  and 
  with 
  C. 
  Baileyi 
  about 
  the 
  Great 
  

   Lakes, 
  and 
  it 
  is 
  in 
  these 
  regions 
  that 
  the 
  doubtful 
  forms 
  occur- 
  In 
  

   typical 
  specimens 
  the 
  three 
  species 
  can 
  be 
  distinguished 
  easily 
  by 
  the 
  

   pubescence 
  of 
  the 
  lower 
  leaf-surface. 
  In 
  C, 
  stolonifera 
  this 
  pubescence 
  is 
  

   all 
  very 
  straight 
  and 
  appressed, 
  the 
  hairs 
  being 
  attached 
  by 
  the 
  middle 
  ; 
  

   in 
  C. 
  pubescens 
  it 
  is 
  all 
  woolly; 
  while 
  in 
  a 
  Baileyiboth 
  kinds 
  of 
  pubescence 
  

   occur 
  on 
  the 
  same 
  leaf. 
  For 
  this 
  reason 
  a 
  Baileyi 
  has 
  heretofore 
  been 
  

   considered 
  (7. 
  stolonifera, 
  in 
  spite 
  of 
  its 
  often 
  abundant 
  woolly 
  pubes- 
  

   cence. 
  The 
  pubescence 
  thus 
  easily 
  separates 
  C. 
  pubescens 
  and 
  C. 
  stolonif- 
  

   era, 
  while 
  the 
  stone 
  of 
  a 
  Bailei/i 
  is 
  very 
  unlike 
  that 
  of 
  either 
  of 
  the 
  

   other 
  species, 
  whose 
  stone 
  characters 
  are 
  not 
  so 
  constant. 
  The 
  stone 
  of 
  

   a 
  Baileyi 
  is 
  the 
  largest 
  of 
  the 
  group, 
  is 
  decidedly 
  flattened, 
  is 
  much 
  

   broader 
  than 
  high, 
  has 
  a 
  square-shouldered 
  top, 
  is 
  not 
  oblique, 
  and 
  has 
  a 
  

   prominent 
  furrowed 
  edge. 
  The 
  stone 
  of 
  C. 
  pubescens 
  is 
  smaller, 
  is 
  less 
  

   flattened, 
  has 
  a 
  rounded 
  top, 
  is 
  decidedly 
  oblique, 
  and 
  has 
  not 
  generally 
  

   so 
  conspicious 
  or 
  furrowed 
  an 
  edge. 
  Its 
  obliqueness, 
  together 
  with 
  its 
  

  

  stolonifi 
  

  

  sencea 
  

  

  and 
  pointed, 
  higher 
  than 
  broad, 
  and 
  scarcely 
  flattened 
  ; 
  in 
  other 
  cases 
  

   almost 
  identical 
  with 
  the 
  stone 
  of 
  C. 
  pubescens, 
  but 
  never 
  like 
  that 
  of 
  C. 
  

   Baileyi. 
  The 
  specimens 
  of 
  C. 
  stolonifera 
  in 
  which 
  the 
  stones 
  resemble 
  

   those 
  of 
  a 
  pubescens 
  are 
  mostly 
  western, 
  where 
  the 
  ranges 
  of 
  the 
  two 
  

   species 
  approach 
  each 
  other 
  or 
  overlap. 
  The 
  stones 
  of 
  eastern 
  C. 
  stolonif- 
  

   era 
  are 
  more 
  apt 
  to 
  have 
  the 
  ovate 
  pointed 
  form 
  referred 
  to 
  above, 
  and 
  

   were 
  it 
  not 
  for 
  the 
  fact 
  that 
  occasionally 
  the 
  most 
  widely 
  divergent 
  forms 
  

   Of 
  stones 
  are 
  to 
  be 
  found 
  in 
  a 
  single 
  fruit-cluster 
  of 
  C. 
  stolonifera, 
  a 
  west- 
  

   ern 
  variety 
  might 
  be 
  established. 
  In 
  the 
  Pacific 
  States 
  and 
  British 
  

   ^olumbia, 
  therefore, 
  collectors 
  must 
  expect 
  to 
  find 
  forms 
  fairly 
  interme- 
  

   diate 
  between 
  C. 
  pubescens 
  md 
  C. 
  stolonifera/ 
  while 
  about 
  the 
  Great 
  Lakes 
  

   they 
  may 
  expect 
  the 
  same 
  confusion 
  between 
  C. 
  Baileyi 
  and 
  C. 
  stdonif- 
  

  

  era. 
  

  

  IS- 
  C. 
  caiididissima 
  M 
  

  

  35(1785)- 
  Shrub 
  2.5 
  

  

  ^^4jJT;^etershigI^ 
  ^ 
  smooth 
  m 
  ostly 
  grayish 
  branches 
  : 
  

  

  Sis 
  muohTS"' 
  ^' 
  r^"^""*^^^ 
  ^^^'^^ 
  «^ 
  ^- 
  stolonifera 
  so 
  far 
  Is 
  I 
  am 
  aware. 
  The 
  

   ?om 
  uerthP 
  so 
  fh? 
  /""""' 
  '''^^ 
  "^^^ 
  °^ 
  ^- 
  «t°lo"ifera. 
  Wherever 
  I 
  have 
  seen 
  it, 
  

   SuSrlraidZ,tJ\'fT"'°' 
  Lake 
  Michigan 
  to 
  the 
  northwestern 
  shore 
  of 
  Lake 
  

   andtl^eco^lfl 
  T% 
  "'' 
  '" 
  British 
  America, 
  it 
  maintains 
  the 
  pearly 
  white 
  berries 
  

   b 
  00m 
  'neth 
  rr^^^h^f 
  '"'"'' 
  ''"''^- 
  " 
  ^^P^*^'^ 
  »« 
  ^^^'^'^ 
  everywhere 
  the 
  habit 
  of 
  

   cXX 
  I?ZL 
  r"""'"' 
  ^"'^ 
  '°' 
  ""^ 
  ^^^^«" 
  " 
  "^^y 
  be 
  worth 
  cultivating^ 
  This 
  pc- 
  

   of 
  note 
  that 
  Xt!! 
  T^-r 
  "^T 
  ''*" 
  '" 
  ''''' 
  ^"'^^'''^^ 
  ^^^- 
  «*^>="'^-. 
  '^^ 
  ^D: 
  * 
  " 
  is 
  worthy 
  

   gtwtg 
  rxu^tm^^^^^^^^^^^ 
  the 
  highest 
  bluffs. 
  I 
  have 
  seen 
  it 
  

  

  IoTjL 
  XTa 
  S^nt 
  r^-'f""^ 
  ""''' 
  ^ 
  '^""'^^'^'i 
  feet 
  above 
  the 
  lake, 
  and 
  blossoming 
  

   iroiu 
  June 
  nil 
  near 
  September.' 
  "—/^/iaca 
  A"" 
  Y 
  

  

  t 
  

  

  'f 
  

  

  r 
  

  

  I 
  

  

  I,- 
  

  

  1^ 
  

  

  ? 
  

  

  'k 
  

  

  

  

  \ 
  

  

  A 
  

  

  