92  Bark  of  Gonolobus  Condurango.      {Am  Feb.ri5r2.arm' 
litory  root,beinga  native  of  northern  Africa,  it  occurred  to  me  that  I 
had  seen  a  root  very  like  the  spurious  root  in  a  collection  of  Morocco 
drugs  presented  some  years  ago  by  Dr.  A.  Leared  (Pharm.  Jonrn. 
[3],  vol.  v,  p.  521).  On  examination  of  the  roots  in  that  collection 
it  was  found  that  the  spurious  pellitory  was  identical  in  appearance, 
structure  and  taste  with  the  root  called  "  towsergent"  or  H  tauzar- 
ghente,"  which  had  been  already  identified  by  me  as  that  of  Cor- 
rigiola  telephiifolia,  Pour.,  belonging  to  the  natural  order  Iltecebraceez. 
The  fact  that  this  little  plant  is  glabrous,  whilst  Anacyclus  Pyre- 
thrum  is  hairy,  explains  the  presence  of  the  radical  tuft  of  hairs  on  the 
apex  of  the  one  root  and  its  absence  from  the  other.  Very  little  is 
known  of  the  structure  of  the  plants  of  the  natural  order  Iltecebracece 
or  Paronychiaccce,  and  that  little  refers  chiefly  to  stems  and  not  to 
root  structure. 
A  brief  account  of  the  stem  structure  of  Corrigicla  is  given  in 
Ann.  cics  Sciences  Nat.  ([4],  torn,  xiv,  p.  117),  but  as  pellitory  root 
is  rarely  if  ever  used  in  a  powdered  state,  and  in  an  entire  state  the 
root  of  Corrigiolatelephiifolia  is  easily  identified,  it  is  unnecessary  to 
enter  into  histological  details  in  the  present  note. — Phar.  Jour,  and 
Trans.,  Nov.  21,  1 891,  p.  405. 
THE  BARK  OF  GONOLOBUS  CONDURANGO.1 
By  G.  Carrara. 
The  bark  is  extracted  with  strong  alcohol,  and  the  filtered  solu- 
tion allowed  to  cool ;  a  greenish  powder  (A)  falls,  leaving  a  yellowish- 
brown  solution  (B).  On  treating  A  wTith  ether,  it  is  divided  into  a 
soluble  part-(tf),  and  a  yellowish,  insoluble  powder  (b)\  the  latter  is 
purified  by  dissolving  it  in  boiling  alcohol,  allowing  the  solution  to 
cool,  and  washing  the  deposit  repeatedly  with  alcohol  and  ether.  It 
proves  to  be  a  glucoside  of  the  composition  C^H^Og,  which  melts  at 
112°,  and  is  insoluble  in  ether  and  light  petroleum,  sparingly  solu- 
ble in  cold  alcohol,  and  very  slightly  in  water ;  the  aqueous  solution 
is  not  precipitated  by  potassium  mercuric  iodide,  or  by  a  solution 
of  iodine  and  potassium  iodide.  When  boiled  for  some  hours  with 
dilute  sulphuric  acid,  the  liquid  reduces  Fehling's  solution. 
The  glucoside,  when  heated  with  benzoic  chloride  at  iOOc,  forms 
a  benzoyl  derivative,  C^PLgOgBz;  this  can  be  purified  by  precipita- 
tion from  its  solution  in  chloroform  by  alcohol.    It  is  a  brownish- 
1  Gazetta,  21,  204-212  ;  Jour.  Chem.  Soc,  1891,  1387. 
