﻿ACADEMY 
  OF 
  SCIENCES. 
  49 
  

  

  Calycadenia 
  plumosa, 
  Kellogg. 
  

  

  Stem 
  annual, 
  2 
  to 
  3 
  feet 
  high, 
  bark 
  creamy-white, 
  villous 
  and 
  setose-scab- 
  

   rously 
  hispid, 
  fastigiately 
  panniculate 
  at 
  the 
  top, 
  heads 
  small 
  {}^ 
  of 
  an 
  inch 
  

   in 
  diameter) 
  densely 
  set 
  on 
  subracemose 
  erect 
  pseudo-simple 
  branches, 
  sub- 
  

   sessile 
  or 
  sessile, 
  subtended 
  by 
  numerous 
  imbricated 
  or 
  crowded 
  very 
  minute 
  

   leaves, 
  or 
  bractoid 
  leaves 
  (1 
  to 
  2 
  lines 
  long), 
  oblong 
  or 
  subspatulate, 
  margins 
  

   revolute, 
  back 
  margins, 
  and 
  apex 
  above, 
  hispid 
  and 
  glandular, 
  a 
  few 
  large 
  stipi- 
  

   tate 
  cup-shaped 
  glands 
  chiefly 
  at 
  the 
  apex, 
  always 
  tipped 
  with 
  a 
  similar 
  gland. 
  

   (The 
  dry 
  fragile 
  proper 
  cauline 
  leaves 
  at 
  the 
  base 
  of 
  the 
  branches 
  crumbled 
  and 
  

   lost.) 
  luvolucral 
  scales 
  (about 
  9), 
  setose 
  and 
  scabrously 
  hispid 
  with 
  white 
  

   hairs, 
  a 
  few 
  large 
  cup-headed 
  stipitate 
  glands 
  intermixed 
  on 
  the 
  back 
  mostly 
  

   above 
  ; 
  rays 
  7 
  to 
  — 
  (?), 
  ligule 
  broadly 
  expanded, 
  3-lobed 
  cuneate 
  base 
  atten- 
  

   uate 
  to 
  a 
  slender 
  hirsute 
  and 
  glandular 
  tube 
  ; 
  gray 
  achenia 
  obovoid 
  attenuate 
  

   towards 
  the 
  subsdpitate 
  incurved 
  base, 
  obcompressed 
  and 
  obscurely 
  triangular, 
  

   grooved 
  longitudinally, 
  or 
  about 
  10-angled, 
  hirsute 
  in 
  lines, 
  or 
  along 
  upon 
  the 
  

   ridges, 
  gibbous 
  above 
  on 
  the 
  back, 
  or 
  oblique 
  at 
  the 
  apex 
  ; 
  chaff 
  between 
  the 
  

   ray 
  and 
  disk 
  flowers 
  united 
  nearly 
  to 
  the 
  top 
  into 
  a 
  9-fold 
  cup, 
  acute 
  hirsute 
  on 
  

   the 
  back 
  above, 
  about 
  2 
  large 
  stipitate 
  cup-shaped 
  glands 
  at 
  the 
  summit 
  ; 
  cen- 
  

   tral 
  disk 
  achenia 
  many 
  (about 
  11) 
  linear- 
  oblong 
  somewhat 
  obcompressed, 
  hir- 
  

   sute, 
  7-nerved 
  ; 
  pappus 
  of 
  about 
  20, 
  rather 
  strong 
  plumose 
  seta 
  in 
  a 
  simple 
  

   series, 
  gradually 
  thickening 
  from 
  apex 
  to 
  base 
  and 
  slightly 
  adherent 
  in 
  a 
  ring 
  

   at 
  the 
  point 
  of 
  insertion 
  ; 
  disk 
  florets 
  (yellow), 
  tube 
  glabrous, 
  sparsely 
  pubes- 
  

   cent 
  above, 
  5-toothed 
  ; 
  teeth 
  erect, 
  acute, 
  stipitate-glandular 
  on 
  the 
  margias, 
  

   pistils 
  included 
  in 
  the 
  purplish 
  stamen 
  tube, 
  or 
  exsert, 
  lobes 
  erect 
  spreading. 
  

  

  Keceptacle 
  flattish 
  (but 
  at 
  maturity 
  the 
  accessories 
  are 
  deciduous, 
  leaving 
  it 
  

   free 
  to 
  inspection, 
  and 
  in 
  drying 
  becomes 
  convex), 
  areolate 
  and 
  pseudo-pitted, 
  

   the 
  achenia 
  being 
  imbedded 
  in 
  the 
  densely 
  villous 
  disk. 
  Flowers 
  yellow. 
  

  

  A 
  plant 
  sent 
  to 
  us 
  from 
  Stockton, 
  by 
  Express— 
  friend 
  and 
  collector 
  unknown, 
  

   being 
  absent 
  in 
  Mendocino 
  Co. 
  at 
  that 
  time 
  : 
  have 
  learned 
  nothing 
  further. 
  

  

  Bahia 
  cuneata, 
  Kellogg. 
  

  

  Stem 
  suffrutescent, 
  decumbent, 
  with 
  numerous 
  annual 
  erect 
  shoots 
  and 
  final 
  

   ascending 
  apex, 
  white 
  arenose-tomentose, 
  also 
  somewhat 
  floccose 
  throughout. 
  

   Leaves 
  opposite, 
  cuneate-oblong, 
  lower 
  somewhat 
  trilobed, 
  lobes 
  mostly 
  dentate, 
  

   3-nerved 
  ; 
  above 
  and 
  on 
  the 
  younger 
  branches 
  often 
  simply 
  tridentate, 
  or 
  more 
  

   or 
  less 
  toothed 
  at 
  the 
  top 
  or 
  upper 
  third 
  ; 
  uppermost 
  alternate, 
  base 
  entire, 
  

   tapering 
  into 
  a 
  clasping 
  petiole, 
  rarely 
  (1 
  or 
  2 
  in 
  200 
  or 
  30Q) 
  palmately 
  tri- 
  

   lobed 
  below 
  the 
  panicle, 
  segments 
  acute, 
  more 
  densely 
  white 
  lanose 
  beneath. 
  

   Peduncles 
  rarely 
  naked, 
  comparatively 
  stout 
  (or 
  about 
  the 
  size 
  of 
  the 
  stem), 
  

   I 
  to 
  4 
  inches 
  in 
  length, 
  more 
  subarachnoid, 
  2 
  to 
  4 
  times 
  the 
  length 
  of 
  the 
  

   leaves 
  ; 
  involucre 
  campanulate, 
  scales 
  in 
  2-series, 
  ovate-oblong, 
  acute 
  or 
  sub- 
  

   acute. 
  8 
  or 
  9, 
  equalling 
  the 
  rays, 
  rays 
  oblong-ovate, 
  half 
  an 
  inch 
  or 
  more 
  in 
  

   length, 
  orange 
  yellow. 
  Receptacle 
  alveolate, 
  not 
  at 
  all 
  fimbrillate 
  (margins 
  of 
  

   alveoli 
  being 
  quite 
  entire) 
  ; 
  ray 
  achenia 
  minutely 
  subvillousat 
  the 
  angles 
  above, 
  

   or 
  subglabrous, 
  scales 
  of 
  pappus 
  about 
  5, 
  very 
  short, 
  acute, 
  .finely 
  and 
  deeply 
  

   Pboc. 
  Cai,. 
  Acad. 
  Sci., 
  Vol. 
  V.— 
  4. 
  May, 
  1873., 
  

  

  