560 
Gleanings  in  Materia  Medica. 
Am.  Jour.  Pharm. 
Nov.,  1885. 
volatile  oil,  and  many  cells  have  their  walls,  pariicularly  the  inner  one, 
materially  thickened.  The  inner  bark  contains  rather  indistinct  medul- 
lary rays,  of  one  to  four  rows  of  cells ;  the  bast  parenchyme  is  often 
sclerose,  the  cells  being  stalf-like  or  much  enlarged  and  deformed; 
sieve  tubes  are  present  in  rather  distant  groups;  the  crystal  cells  fre- 
quently contain  several  well-formed  prisms;  the  bast  fibres  are  single 
or  in  interrupted  tangential  rows,  are  spindle-shaped,  about  0*5  mm. 
long,  35  micromm.  broad,  colorless,  and  upon  cross  section  roundish 
rectangular  and  with  a  very  fine  cavity. 
False  clove  bark— transverse  section.  K',  K",  K"\  layers  of  cork;'rp  bark  paren-. 
chyme;  s  crystal  cell  containing  sandy  oxalte;  o  oil  cells;  m  medullary  rays;  &/  bast 
fibres;  ft^^  sclerotic  bast  parenchyme ;  c  crystal  cell. 
The  parenchyme  cells  contain  a  homogeneous  or  granular  red-brown 
mass,  insoluble  in  alcohol,  partly  soluble  in  water  and  alkalies,  and 
colored  green  by  iron  salts.  The  bark  is  doubtless  derived  from  a 
laurel,  probably  a  species  of  cinnamomum;  but  it  does  not  resemble 
any  officinal  bark,  and  in  substance  as  well  as  powdered,  it  is  easily 
distinguished  from  cinnamon  by  the  large  number  of  stone  cells  and 
the  [)resence  of  staff  cells,  from  clove  bark  by  the  presence  of  bast  fibres, 
and  from  both  by  the  deep  brown-red  contents  of  all  parenchymatous 
cells.    (^'Phar.  Centralh."  1885,  251-253.) 
Guachamacd.  Dr.  Kobert,  of  Strassburg  ("Phar.  Zeitung,"  1885, 
No.  51),  gives  the  history  of  this  plant,  of  which  the  following  is  a 
brief  abstract: 
