﻿330 
  JOURNAI^ 
  OF 
  the: 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  14 
  

  

  KEY 
  TO 
  THE 
  SPECIES 
  OP 
  PENIOCEREUS 
  

   Young 
  growth 
  pubescent; 
  areoles 
  on 
  flower- 
  tube 
  not 
  borne 
  on 
  knobs; 
  

   fruit 
  bearing 
  small 
  inconspicuous 
  spine-clusters; 
  seeds 
  dull 
  black 
  

  

  1- 
  ^- 
  Sreggii. 
  

  

  Young 
  growth 
  glabrous 
  ; 
  areoles 
  on 
  flower-tube 
  borne 
  on 
  knobs 
  ; 
  fruit 
  bearing 
  

   large 
  clusters 
  of 
  spines 
  at 
  the 
  areoles 
  ; 
  seeds 
  larger 
  than 
  in 
  the 
  last, 
  shining 
  

   black 
  2. 
  P. 
  johnstonii. 
  

  

  Fig. 
  2. 
  Peniocereus 
  johnstonii. 
  — 
  Upper 
  figure, 
  branch: 
  lower 
  figures, 
  old 
  flower 
  and 
  seeds. 
  

  

  BOTANY. 
  — 
  Three 
  new 
  species 
  of 
  Passiflora 
  /rom 
  Venezuela 
  and 
  Ecua- 
  

   dor 
  } 
  E. 
  P. 
  KiLUP, 
  U. 
  S. 
  National 
  Museum. 
  (Communicated 
  

   by 
  William 
  R. 
  Maxon.) 
  

  

  Recent 
  botanical 
  exploration 
  in 
  Venezuela 
  and 
  Ecuador 
  has 
  brought 
  

   to 
  light 
  three 
  new 
  species 
  of 
  Passiflora, 
  which 
  are 
  described 
  herewith. 
  

   One 
  of 
  them, 
  P. 
  popenovii, 
  is 
  cultivated 
  for 
  its 
  edible 
  fruit. 
  

  

  Passiflora 
  (Granadilla) 
  dispar 
  Killip, 
  sp. 
  nov. 
  

  

  Stem 
  terete, 
  striate, 
  glabrous; 
  stipules 
  ovate, 
  2 
  cm. 
  long, 
  0.6 
  to 
  0.8 
  cm. 
  

   broad, 
  foliaceous, 
  serrulate, 
  aristulate; 
  petioles 
  3 
  to 
  3.5 
  cm. 
  long, 
  bearing 
  

   4 
  to 
  6 
  stipitate 
  glands 
  l.S 
  mm. 
  in 
  length; 
  leaves 
  ovate, 
  11 
  to 
  13 
  cm. 
  long, 
  

   6 
  to 
  7 
  cm. 
  broad, 
  unlobed 
  or 
  occasionally 
  with 
  one 
  lateral 
  lobe, 
  narrowed 
  

   to 
  an 
  obtuse 
  apex, 
  subpeltate 
  about 
  2 
  mm. 
  above 
  base, 
  glabrate 
  above, 
  

   densely 
  grayish-tomentulose 
  beneath, 
  palmately 
  5 
  or 
  7-nerved 
  with 
  promin- 
  

   ulous 
  secondary 
  veins, 
  reticulate, 
  the 
  margin 
  entire 
  or 
  remotely 
  and 
  minutely 
  

   serrulate 
  toward 
  the 
  base; 
  peduncles 
  2 
  to 
  2.5 
  cm. 
  long; 
  bracts 
  ovate-lance- 
  

   olate, 
  1 
  to 
  1.5 
  cm. 
  long, 
  0.5 
  to 
  0.6 
  cm. 
  broad, 
  foliaceous, 
  acute, 
  closely 
  callous- 
  

   serrulate, 
  the 
  base 
  cordate 
  with 
  unequal 
  lobes; 
  flowers 
  4.5 
  to 
  5.5 
  cm. 
  wide; 
  

   sepals 
  ovate-lanceolate, 
  obtuse, 
  2 
  to 
  2.2 
  cm. 
  long, 
  1 
  cm. 
  broad, 
  short-horned 
  

   just 
  below 
  apex; 
  filaments 
  of 
  faucial 
  corona 
  in 
  several 
  series, 
  the 
  outer 
  fili- 
  

   form, 
  equaling 
  the 
  petals, 
  the 
  succeeding 
  series 
  capillary, 
  barely 
  3 
  mm. 
  high; 
  

   middle 
  corona 
  membranous, 
  erect, 
  irregularly 
  lacerate; 
  basal 
  corona 
  closely 
  

  

  1 
  Published 
  by 
  permission 
  of 
  the 
  Secretary 
  of 
  the 
  Smithsonian 
  Institution. 
  Received! 
  

   July 
  19, 
  1922. 
  

  

  