434    Materia  Medica  of  the  Mexican  Pharmacopoeia. 
f  Am.  Jour.  Pharm. 
I     Sept.,  1885. 
larger  and  more  bitter  bark  has  been  referred  to  Croton  suberosum, 
Kunth.  According  to  Oliva,  Coutarea  lateriflora,  De  Cand.,  Rubia- 
cese,  is  known  in  i^utlan  as  caiiipauillo,  and  its  bark  is  the  copalchi  of 
Guadalajara ;  and  Jimenez  states  that  Hedwigia  balsamifera,  Swartz, 
is  called  copalchi  in  Orizaba. 
Corteza  de  Drimis.  Drymis  mexicana,  De  Cand.,  grows  in  hot 
regions  of  the  western  slope  of  the  Mexican  cordillera ;  Dr.  grana- 
tensis,  Be  Cand.,  in  Nueva  Granada.  The  bark  is  stimulant,  tonic 
and  aromatic.  Dose,  in  powder,  1  to  8  Gra. ;  the  infusion,  8  Gm.  to 
a  liter  of  water;  the  tincture,  10  Gm. 
Costomate,  Capub',  Physalis  Costomatl,  MociTio  et  Sesse  ;  Solanacese; 
in  temperate  sections  of  Mexico.  The  fruit  is  comestible,  and  the 
leaves  are  diuretic. 
Crameria.  Besides  the  Peruvian  Krameria  triandra,  the  two  Mexi- 
can species  Kr.  pauciflora  and  secundiflora,  Fl.  Mex.ined.,aire  mentioned 
as  the  principal  sources  of  this  drug,  which,  however,  is  not  described. 
Cuajilote,  Parmentiera  edulis,  i)e  Cand.;  Bignoniaceae ;  in  Yautepec 
and  other  hot  districts.  According  to  Oliva  the  root  is  diuretic,  and  a 
decoction  of  the  leaves  is  useful  in  external  otitis. 
Cuajiote,  Rhus  perniciosa,  H.  B.  K. ;  Terebinthacese;  in  Tepecacuilco 
and  other  hot  districts.  The  gum  resin,  which  exudes  spontaneously, 
is  commonly  known  as  goma  archipin.  It  is  seen  in  globular  masses, 
in  tears  or  in  irregular  fragments,  and  varies  in  color  between  milk 
white,  yellowish,  reddish-yellow  and  brown,  sometimes  with  greenish 
or  bluish  green  spots;  fracture  glassy;  spec.  grav.  at  18° C.  0*9383; 
inodorous,  persistently  bitter  ;  readily  emulsionized  with  water ;  when 
thrown  in  the  fire,  decrepitates  and  gives  a  slight  smoke.  Rio  de  la 
Loza  found  it  to  contain  34  gum  and  44  bitter  resin  soluble  in  alcohol 
and  ether,  the  remainder  consisting  of  moisture,  salts  of  calcium  and 
magnesium  and  of  extraneous  matter.  It  is  used  as  a  purgative  and 
diuretic  (dose?)  and  the  thick  emulsion  as  a  cement  for  ivory,  glass, 
porcelain,  etc. 
Cuasia.  Quassia  amara,  Lin.,  and  Picrsena  excelsa,  Lindley,  are 
used,  but  the  wood  of  Rhus  Metopium  is  also  sold  under  this  name 
and  is  distinguished  by  its  gray  color  with  black  spots,  and  by  the 
precipitate  of  its  aqueous  infusion  with  sulphate  of  iron. 
Cuautecomate,  Crescentia  alata,  H.  B.  K.;  Bignoniacese;  in  Colima, 
Autlan,  Acapulco  and  other  hot  districts.  The  fruit  is  a  round,  woody, 
smooth  berry,  marked  with  a  circular  scar  from  the  peduncle,  one- 
