﻿"n 
  

  

  

  Il8 
  BOTANICAL 
  GAZETTE, 
  [ 
  M^J) 
  

  

  tioned. 
  This 
  sprcies 
  is 
  limited 
  to 
  the 
  islands. 
  Tlie 
  bibliography 
  is 
  as 
  fol- 
  

   lows 
  : 
  P. 
  Fitchii 
  Greene, 
  Cal. 
  Acad, 
  of 
  Science, 
  2. 
  403, 
  and 
  Pittonia, 
  1, 
  205, 
  

   265, 
  291. 
  R 
  Califc/rnica 
  Vasey, 
  Proc. 
  Xat. 
  Museum, 
  Vol. 
  11, 
  368. 
  

  

  14- 
  P. 
  Grayi, 
  n. 
  sp. 
  A 
  species 
  very 
  close 
  to 
  P. 
  

  

  Greenei 
  in 
  habit 
  but 
  more 
  srlabrous 
  : 
  stems 
  mostly 
  low 
  and 
  

   much 
  branched 
  : 
  akenes 
  barel3' 
  over 
  a 
  line 
  long, 
  oblong, 
  

   somewhat 
  falcately 
  oblique, 
  with 
  a 
  short 
  pappus 
  of 
  numer- 
  

   ous 
  squamella^ 
  united 
  into 
  a 
  small 
  crow^n, 
  with 
  an 
  erose 
  den- 
  

   ticulate 
  border, 
  marmn 
  minntelv 
  hirsute, 
  faces 
  more 
  or 
  less 
  

   puberulent 
  

  

  order, 
  margin 
  minutely 
  hirsute, 
  faces 
  more 
  or 
  k 
  

   It; 
  awns 
  mostly 
  w^anting, 
  sometimes 
  one 
  (fig. 
  8)- 
  

  

  scabrous. 
  

  

  P, 
  microcefh 
  

  

  by 
  Tringle 
  and 
  Palmer. 
  Proc. 
  Amer. 
  Acad. 
  21. 
  391, 
  

  

  17- 
  P. 
  Socorrosensis, 
  n. 
  sp. 
  Apparently 
  an 
  annual, 
  

   slender, 
  ascending, 
  with 
  a 
  close 
  appessed 
  somewhat 
  glandu- 
  

   lar 
  pubesence 
  : 
  leaves 
  very 
  variable, 
  small, 
  6 
  to 
  10 
  lines 
  long, 
  

   equalhng 
  the 
  petioles, 
  ovate 
  to 
  broadly 
  triangular, 
  the 
  base 
  

   cordate 
  to 
  even 
  reniforn 
  or 
  above 
  with 
  more 
  or 
  less 
  cuneate 
  

   base 
  : 
  heads 
  mostly 
  on 
  peduncles 
  an 
  inch 
  or 
  two 
  long 
  : 
  rays 
  

   white, 
  small, 
  3-toothed 
  : 
  disk 
  flowers 
  slender, 
  \\ 
  lines 
  long. 
  

   Its 
  proper 
  tube 
  forming 
  half 
  its 
  length 
  : 
  style 
  branches 
  broad 
  

   with 
  acute 
  tips: 
  akenes 
  spatulate-oblong 
  (i| 
  lines 
  long)' 
  

   with 
  cihate 
  margins, 
  no 
  crown 
  (sometimes 
  mere 
  vestiges 
  ot 
  

   squamellai), 
  and 
  two 
  unequal 
  awns 
  from 
  opposite 
  angles, 
  

   tipped 
  with 
  the 
  remains 
  of 
  the 
  style 
  (fig. 
  9). 
  

  

  A 
  very 
  peculiar 
  Perityle 
  with 
  much 
  the 
  appearance 
  of 
  P. 
  leptoglossa- 
  

   resembhng 
  P. 
  Fitchii 
  in 
  having 
  akenes 
  tipped 
  with 
  the 
  base 
  of 
  the 
  style 
  

   and 
  no 
  crown, 
  while 
  the 
  akene 
  more 
  resembles 
  P. 
  Emoryi. 
  Collected 
  by 
  

  

  1 
  

  

  r 
  

  

  

  t 
  

  

  X 
  

  

  

  ^ 
  

  

  Palmer, 
  Guadalupe 
  Island, 
  1875 
  (no. 
  44), 
  1889 
  (891), 
  and 
  Cedros 
  

   Island, 
  1889 
  (no. 
  701, 
  mostly). 
  P. 
  Emoryi 
  Watson, 
  Proc. 
  Am. 
  Acad., 
  H- 
  

   116. 
  F. 
  Fitchii, 
  var. 
  Palmeii 
  Gray, 
  Syn. 
  Flora, 
  321. 
  To 
  this 
  we 
  refer 
  Pal- 
  , 
  

   mer's 
  plant 
  from 
  Cormandos 
  Islands 
  (1888), 
  which 
  has 
  the 
  same 
  akenes 
  | 
  

   and 
  crown, 
  but 
  of 
  more 
  slender 
  habit, 
  and 
  minute 
  leaves. 
  

  

  15. 
  P. 
  leftoglossa 
  Gray. 
  Supposed 
  by 
  Gray 
  to 
  have 
  

   been 
  only 
  collected 
  by 
  Dr. 
  Coulter. 
  His 
  label 
  says 
  it 
  

   was 
  "California," 
  but 
  Dr. 
  Gray 
  thought 
  it 
  was 
  more 
  

   probably 
  Arizona, 
  and 
  it 
  seems 
  more 
  likely 
  not 
  found 
  

   within 
  our 
  limits. 
  I 
  find 
  in 
  the 
  National 
  Herbarium 
  tins 
  

   plant 
  from 
  Guaymas, 
  Mexico, 
  collected 
  by 
  Dr. 
  Palmer 
  m 
  

   1869. 
  The 
  species 
  is 
  peculiar 
  in 
  the 
  slender 
  proper 
  tube 
  of 
  

   the 
  corolhi, 
  and 
  the 
  long 
  and 
  narrow 
  cylindrical 
  throat. 
  The 
  

   akenes 
  a 
  line 
  long, 
  linear 
  oblong, 
  with 
  a 
  conspicuous 
  crown 
  

   ofsquamellie; 
  awn 
  single, 
  longer 
  than 
  the 
  akene, 
  slightly 
  

  

  3 
  collected 
  

  

  