Am.  .Tour.  Pharm. ) 
October,  1908.  j 
Belladonna  and  Scopolia. 
461 
compound,  from  5  to  25  /x  in  diameter,  and  vary  from  spherical 
to  ellipsoidal  or  ovoid,  frequently  having  a  cleft  at  the  point  of 
origin  of  growth.    The  crvstals  of  calcium  oxalate  are  deltoid  or 
Fig.  2.  Belladonna  Herb:  -4.  section  of  upper  epidermis  of  leaf  showing  one  stoma;  B, 
section  of  under  epidermis  of  leaf  showing  three  stomata;  c,  4-celled  non-glandular  hair;  D, 
glandular  hairs;  E,  cryptocrystalline  crystals  of  calcium  oxalate;  F,  longitudinal  section  of 
portion  of  stem  showing  wood  fibers  (a/),  trachea?  (s)  with  bordered  pores,  tracheae  (r)  with 
reticulate  markings,  tracheae  (Z)  with  annular  and  spiral  markings;  G,  transverse  section  of 
portion  of  stem  showing  six  bast  fibers  and  a  few  parenchyma  cells 
arrow-shaped,  and  vary  from  4  to  15  /x  in  diameter.  They  are 
packed  in  the  cells  in  which  they  occur,  and  are  readily  dis- 
tinguished in  the  powdered  drug  by  means  of  the  micro-polari scope. 
