﻿\ 
  

  

  ^%0.] 
  BOTANICAL 
  GAZETTE. 
  

  

  203 
  

  

  \isitors: 
  Afidae: 
  (i) 
  Bombiis 
  vir^inicus 
  Oliv. 
  $; 
  

   (2 
  B. 
  separatus 
  Cr. 
  $; 
  (3) 
  B. 
  americanomm 
  F. 
  ? 
  S 
  ; 
  

   (4) 
  13. 
  scutellai-is 
  Cr. 
  ?^ 
  —all 
  c. 
  p. 
  Megachile 
  brevis 
  Say 
  9 
  muti- 
  

   ates 
  the 
  petals 
  by 
  cutting 
  out 
  large 
  circular 
  pieces 
  to 
  use 
  in 
  

  

  her 
  np«f- 
  

  

  Extranuftial 
  nectar 
  ies.—Th^ 
  extrafloral 
  nectaries 
  o^ 
  tliis 
  

   plant 
  and 
  of 
  C. 
  Marilandica 
  are 
  situated 
  on 
  the 
  upper 
  side 
  

   andnear 
  the 
  base 
  of 
  the 
  petioles, 
  being 
  cupuliform 
  in 
  Chani- 
  

   ascnsta 
  and 
  club-shaped 
  in 
  Marilandica. 
  

  

  Visitors: 
  (Aug. 
  2, 
  7, 
  8) 
  Prvmenoptera~^;/^rf;//V/^: 
  (i) 
  

   Haiictus 
  confususSm. 
  Eumemdce: 
  {2) 
  Odynerus 
  foramina- 
  

   tus 
  Muss. 
  LarridiB; 
  (3) 
  Larra 
  argentata 
  Beauv. 
  SpheddcB: 
  

   U) 
  i'eJopocus 
  cementarius 
  Dru. 
  ; 
  (5) 
  Chaljbion 
  ca^ruleum 
  L. 
  

   V 
  ompdid(E 
  : 
  (6) 
  Pompilus 
  sp. 
  ; 
  (7) 
  P. 
  navus 
  Cr. 
  ; 
  (8) 
  Prio- 
  

  

  '^M-f.lf.J''^^'''^'''^'^ 
  Cr. 
  Scoiudce: 
  (9) 
  Tiphia 
  inornata 
  Say. 
  

   Mutilhdi^: 
  (10) 
  xMutilla 
  hexagona 
  Say 
  ; 
  (11) 
  M. 
  sayi 
  Blake; 
  

  

  ^I2j 
  bphrerophthalma 
  macra 
  Cr. 
  Formicidm\ 
  (13, 
  14) 
  A 
  

   Diack 
  and 
  a 
  large 
  red 
  species. 
  Chrysididm'. 
  (15) 
  Holopyga 
  

   yentralis 
  Say; 
  (16) 
  Chrysis 
  raontana 
  Aaron. 
  Braconidte: 
  

   (17) 
  Apanteles 
  sp. 
  

  

  ^'m^vix—Tabamdm: 
  (18) 
  Tabanus 
  lineola 
  F. 
  Syrp/mhe: 
  

   ^^9) 
  m.Jogv^^pi■^, 
  marginata 
  Say; 
  (20) 
  ^l. 
  polita 
  Say. 
  

   Jac/imidce: 
  (21) 
  sp. 
  ; 
  (22) 
  Phorocera 
  sp. 
  Sarcophagidx: 
  (2]) 
  

   ^'ircophaga 
  sp. 
  Musckke: 
  (24) 
  Luciiia 
  cornicma 
  F. 
  A)i- 
  

   inompdjB: 
  (25) 
  Anthomyia 
  sp. 
  Orialidm: 
  (26) 
  Rivellia 
  

   quadrifasciata 
  Macq 
  

  

  Hemiptera— 
  a^;i5/cfe 
  : 
  (27) 
  Lygus 
  pratensis 
  L. 
  

  

  -Ljepidoptera— 
  7?/zo/rt'/yc6'r« 
  : 
  '(28) 
  Callidrvas 
  eubule 
  L. 
  

   (ii-elease 
  notes.) 
  

  

  wh'f"'^'^'"^^'^"''''''^''"^^^"^^''-^-"'^^^''^*^ 
  petals 
  form 
  an 
  upper 
  lip, 
  

   Frit 
  M-n^'^r"^ 
  a 
  lower, 
  all 
  of 
  them 
  being 
  entirely 
  yellow, 
  

   kin 
  f 
  i^ 
  ^^"" 
  nientions 
  several 
  flowers 
  in 
  which 
  there 
  are 
  two 
  

   are 
  H 
  ^^^^"^^ns 
  with 
  difl^erent 
  tunctions. 
  In 
  this 
  flower 
  there 
  

   tjJJ"'"^^ 
  sets 
  of 
  stamens, 
  all 
  with 
  different 
  functions. 
  The 
  

   ser 
  ^ 
  "PP^^ 
  ^^^ 
  reduced 
  to 
  dark 
  scale-like 
  rudiments, 
  which 
  

   cur^^^^ 
  pathfinders. 
  Accordingly, 
  the 
  red 
  spots 
  which 
  oc- 
  

   -"^lari^" 
  ^- 
  ^PP^^ 
  petals 
  of 
  Chiima?crista 
  are 
  wanting 
  in 
  

   itoW 
  ^n'^'^" 
  ^^^ 
  short 
  stamens 
  furnish 
  pollen 
  for 
  the 
  vis- 
  

   ja\ys'- 
  .""^'^^^-bees 
  milk 
  the 
  pollen 
  out 
  of 
  these, 
  using 
  their 
  

  

  on 
  ea^h'" 
  1'^^ 
  ^^^^ 
  °^ 
  Chamaecrista. 
  Two 
  long 
  stamens, 
  one 
  

   ---_Jii|^_^^£ej5fthe 
  style, 
  furnish 
  pollen 
  for 
  cross-fertilization. 
  

  

  **' 
  'he 
  slarae 
  ^^'*°' 
  ^^^^' 
  ^^^^- 
  ■^*''- 
  ^'^"•' 
  1*^86,314-318. 
  AlsoTorr. 
  Bull. 
  XIII, 
  -4X 
  Figures 
  

  

  ■^m. 
  .Vat 
  xvf 
  ^^^ 
  ^^^^® 
  ^^ 
  ^" 
  ^'ccidentrilis 
  and 
  of 
  the 
  flower 
  of 
  C. 
  acutifolm 
  by 
  Todd, 
  in 
  

  

  •Nati,« 
  vAr*^' 
  '■^present 
  C. 
  Marilandica 
  fairly 
  well, 
  

   "lure 
  XVii_ 
  364. 
  — 
  

  

  