Am.  Jour.  Pharm.  ) 
September,  1914.  J 
Rhamnus  Purshiana. 
393 
a  quarter  of  an  inch  to  almost  an  inch  long  and  four  to  five  times 
longer  than  the  calyx,  which  is  narrowly  campanulate  with  more 
or  less  spreading  acuminate  lobes.    The  petals  are  minute,  ovate, 
Fig.  2. — Peeling  Cascara  bark  in  Washington  forests.    Illustrating  a  method  employed  in 
commercial  collection,  and  the  dense  forest  in  which  the  collector  must  work. 
and  deeply  emarginate  at  the  apex,  and  enfold  the  short  stamens, 
whose  filaments  are  somewhat  thickened  at  the  base.  The  style 
is  crowned  with  a  slender  two-lobed  stigma.  The  fruit  globose  or 
broadly  obovoid,  a  third  to  one-half  inch  in  diameter  and  very 
