﻿ACADEMY 
  OF 
  SCIENCES. 
  47 
  

  

  The 
  strange 
  combination 
  of 
  a 
  Chcenactis 
  stigraatic 
  appendage 
  on 
  one 
  branch 
  

   of 
  the 
  style, 
  and 
  Hymenopappus 
  on 
  the 
  other, 
  of 
  the 
  self-same 
  style, 
  occurs 
  so 
  

   often 
  that 
  it 
  is 
  truly 
  puzzling 
  to 
  the 
  student. 
  It 
  should 
  also 
  be 
  noted, 
  that 
  the 
  

   pappus 
  is 
  scarcely 
  more 
  than 
  half 
  the 
  length 
  of 
  the 
  achenium. 
  

  

  On 
  the 
  other 
  hand, 
  as 
  H., 
  the 
  achenia 
  should 
  be 
  turbinated 
  and 
  contracted 
  

   into 
  a 
  stipe. 
  It 
  does 
  not, 
  therefore, 
  exactly 
  tally 
  with 
  the 
  generic 
  description 
  

   of 
  H.; 
  besides, 
  the 
  scales 
  of 
  the 
  involucre 
  are 
  not 
  (white) 
  or 
  petaloid, 
  but 
  strict- 
  

   ly 
  herbaceous. 
  Having 
  indicated 
  its 
  characteristics, 
  it 
  may 
  repose 
  provisionally 
  

   here. 
  

  

  Macrorhynchus 
  Harfordii, 
  Kellogg. 
  

  

  Scapes 
  wooly 
  when 
  young, 
  more 
  or 
  less 
  deciduous 
  with 
  age, 
  or 
  dispersed 
  in 
  

   growth, 
  naked, 
  or 
  an 
  occasional 
  leaf 
  upon 
  the 
  scape, 
  several 
  from 
  a 
  perennial, 
  

   fusiform 
  root, 
  12 
  to 
  18 
  inches 
  high, 
  a 
  single 
  large 
  yellow 
  flower, 
  ligules 
  often 
  

   purplish 
  on 
  the 
  back 
  ; 
  fistulous, 
  striate, 
  subglabrous 
  or 
  sparsely 
  pubescent, 
  some- 
  

   what 
  woolly 
  at 
  the 
  base 
  and 
  summit. 
  Leaves 
  oblanceolate, 
  subacute 
  or 
  obtuse, 
  

   nerved 
  and 
  pseudo-triplinerved 
  or 
  twice 
  triplinerved, 
  nerves 
  decurrent 
  along 
  the 
  

   broad 
  midrib, 
  tapering 
  into 
  a 
  long, 
  winged 
  petiole, 
  more 
  or 
  less 
  pubescent, 
  dil- 
  

   ate 
  more 
  conspicuously 
  near 
  the 
  base, 
  pinnatifld, 
  lobes 
  short, 
  remote, 
  the 
  very 
  

   open 
  sinuses 
  often 
  with 
  a 
  few 
  intermediate 
  teeth, 
  about 
  half 
  the 
  length 
  of 
  the 
  

   scape 
  — 
  terminal 
  lobe 
  short, 
  subacute 
  or 
  obtuse 
  ; 
  scales 
  of 
  the 
  involucre 
  nerved, 
  

   oblong-oblanceolate 
  or 
  sublanceolate, 
  acute, 
  entire, 
  hirsute, 
  and 
  minutely 
  gland- 
  

   ular 
  on 
  the 
  back, 
  pubescent 
  within 
  above, 
  outer 
  herbaceous 
  calyculate 
  scales 
  

   none, 
  or 
  rare 
  ; 
  inner 
  subscarious 
  series 
  linear 
  lance- 
  pointed, 
  pubescent 
  on 
  the 
  

   back 
  toward 
  the 
  tip, 
  margins 
  and 
  lower 
  portion 
  scarious, 
  nerved, 
  equalling 
  the 
  

   discoid 
  pappus. 
  Achenia 
  obcompressed, 
  lanceolate, 
  apex 
  acuminate, 
  as 
  long 
  as 
  

   the 
  setiform 
  beak, 
  8 
  or 
  9 
  obtuse 
  ribs, 
  deeply 
  striate-sulcate, 
  creamy 
  white 
  ; 
  per- 
  

   sistent 
  capillary 
  pappus 
  somewhat 
  tawny, 
  as 
  long 
  or 
  longer 
  than 
  the 
  stipe, 
  outer 
  

   and 
  inner 
  seeds 
  similar 
  and 
  alike 
  fertile. 
  Receptacle 
  alveolate, 
  naked. 
  

  

  Found 
  by 
  Mr. 
  W. 
  G. 
  W. 
  Harford, 
  at 
  Petaluma, 
  May 
  21st, 
  1870. 
  

  

  If 
  this 
  be 
  supposed 
  to 
  be 
  allied 
  to 
  heterophyllus, 
  it 
  must 
  be 
  remembered 
  that 
  

   is 
  an 
  annual 
  plant, 
  of 
  dwarf 
  habit, 
  with 
  a 
  scape 
  scarcely 
  longer 
  than 
  the 
  leaves, 
  

   with 
  an 
  achenia 
  undulate 
  winged, 
  and 
  }4 
  the 
  length 
  of 
  the 
  filiform 
  beak 
  ; 
  a 
  plant 
  

   4 
  or 
  5 
  inches 
  high, 
  slender, 
  etc. 
  

  

  Macrorhynchus 
  an 
  gustif 
  alius, 
  Kellogg. 
  

  

  Scape 
  wooly-pubescent 
  with 
  articulated 
  hairs, 
  chiefly 
  at 
  the 
  base 
  and 
  sum- 
  

   mit, 
  erect 
  or 
  ascending, 
  from 
  a 
  perennial 
  slenderly 
  fusiform 
  root, 
  10 
  to 
  12 
  

   inches 
  high, 
  head 
  cylindraceous, 
  (slightly 
  expanding 
  in 
  the 
  dawn 
  of 
  sunny 
  days,) 
  

   rachis 
  and 
  lobes 
  somewhat 
  linear-attenuated, 
  retrorsely-pinnatifid 
  with 
  deep 
  

   broad 
  rather 
  uniform 
  sinuses, 
  lobes 
  linear-lanceolate 
  entire, 
  commonly 
  curved 
  

   with 
  an 
  ascending 
  sweep, 
  lobes 
  tipped 
  with 
  a 
  (purplish) 
  callous, 
  or 
  pseudo-gland, 
  

   petioles 
  slender, 
  and 
  like 
  the 
  base 
  and 
  summit 
  of 
  the 
  scape 
  wooly, 
  mostly 
  glab- 
  

   rous 
  above, 
  terminal 
  lobe 
  long 
  (2 
  to 
  3 
  inches, 
  or 
  longer 
  than 
  the 
  petiole), 
  linear- 
  

   attenuated 
  ; 
  involucral 
  scales 
  acute, 
  or 
  sub-acute, 
  the 
  exterior 
  foliaceous 
  series 
  

   short, 
  half 
  as 
  long 
  as 
  the 
  2 
  or 
  3. 
  inner 
  sub-scarious 
  series, 
  lanceolate, 
  or 
  rarely 
  

  

  