Am.  jour.  Pharm.  i       Plants  Used  as  Insecticides. 
January,  1919.     J  O A 
Aristolochia  cornuta  Mast.,  Aristolochia  ornithocephala 
Hook.  (==£ A.  brasiliensis  Mart  et  Zucc),  Aristolochia  ele- 
gans  Mast.  Aristolochiacece. 
The  flowers  are  fatal  to  insects.  (Greshofr.) 
Artemisia  Absinthium  L.  Composite?.  Synonym:  Absinthium 
vulgare  Lam.  Wormwood.  North  Africa  and  Europe.  Thor- 
oughly established  and  common  in  E.  Canada  and  N.  New  Eng- 
land. Elsewhere  local.  Naturalized  from  Europe. 
Recommended  for  cultivation  as  a  preventative  of  various  insect- 
plagues,  even  the  phylloxera,    (von  Mueller.) 
Asagma  officinalis  (Ch.  &  Sch.)  Lindl.    Liliacace.  Synonyms: 
Veratrum  officinale  Ch.  &  Sch.,' Schocnocaulon  officinale  Gray ■, 
Helonias  officinalis  Don,  Sabadilla  officinarnm  Brandt  &  Ratzeb. 
Sabadilla.    Mexico  to  Venezuela. 
The  use  of  the  seeds  against  lice  is  well  known. 
Asclepias  curassavica  L.  Asclepiadacece .  Bastard  Ipecac.  Trop- 
ical America. 
It  is  used  by  the  Indians  of  the  Isthmus  of  Tehauntepec  (southern 
Mexico)  to  keep  away  vermin,  especially  fleas.  They  make  a  rough 
broom  of  it,  and  sweep  the  floors  and  walls  of  their  huts,  and  find 
that  they  are  not  troubled  with  fleas  for  a  considerable  time  after- 
wards. They  have  tried  brushing  dogs  with  it  when  their  coats  are 
full  of  vermin,  and  it  appears  to  answer  the  same  purpose  with  them. 
(Kew  Bull.  130,  Oct.,  1897,  p.  338.) 
Atropa  Belladonna  L.    Solanaceoe.    Deadly  Nightshade,  Bella- 
donna.   Southern  Europe  and  Central  Asia. 
Decoction  and  alcoholic  extract  of  leaves  produced  no  effect  on 
cotton  worms  {Aletia).  (Riley.) 
Baptisia  tinctoria  (L.)  R.  Br.  Fabacece.  Synonyms:  Sophora 
tinctoria  L.,  Podalyria  tinctoria  Michx.  Indigo-weed,  Shoo-fly. 
Eastern  U.  S. 
The  plants  placed  in  the  harness  keep  flies  from  horses.  (Wil- 
liams, Trans.  Am.  Med.  Assoc.,  Vol.  2,  i849?  P-  9J6.)  The  alcoholic 
extract  and  decoction  produced  no  effect  upon  cotton  worms 
{Aletia).  (Riley.) 
The  fresh  plant  attached  to  the  harness  of  horses  keeps  off  flies 
— much  used  in  Virginia  for  this  purpose.  There  is  no  gum  exuding 
from  it  and  the  odor  is  not  pungent,  but  it  seems  to  prove  hostile  to 
