AmFe°bU!ri£6arm'}  Materia  Mediea  of  the  Mexican  Pharmacopoeia.  75 
in  Ario  and  in  Morelia;  Pol.  lutea  in  Guadalajara,  Pol.  amara  in 
Tepatitlan  and  Pol.  americana  in  Veracruz. 
Ponchishuis,  Asclepias  currasavica,  Lin.;  Asclepiadacese ;  in  Hua- 
steca,  Yucatan,  &c.  From  3  to  9  drops  of  the  milk-juice  act  as  a 
powerful  emeto-catliartic,  and  it  is  also  used  as  an  antiperiodic  and 
vermifuge.  The  extract  of  the  juice  is  violently  sternutatory,  and  to 
the  stem  are  attributed  the  same  properties  as  to  sarsaparilla  and  China 
root.  Dr.  Leon  of  Tabasco  believes  the  root  to  be  useful  in  asthma 
and  other  nervous  affections;  in  doses  of  I/O  to  1*5  gm.,  taken  in  three 
portions,  it  acts  as  an  emetic,  and  in  smaller  quantities  it  is  purgative. 
The  leaves,  topically  applied,  are  said  to  cure  cancer;  according  to 
Dr.  Hamilton  they  possess  useful  haemostatic  and  antiblennorrhagic  pro- 
perties.   All  preparations  of  this  plant  should  be  used  with  great  care. 
Prodigiosa,  Athanasia  amara,  Cervantes;  Compositse;  in  the  Mexi- 
can valley.  Leaves  rough,  orbicular,  with  rounded  lobes;  heads 
hermaphrodite ;  involucre  calyculate ;  corolla  yellow,  tubular,  five- 
lobed;  style  bifid,  terminating  in  two  small  tufts  of  hairs  near  the 
stigmatic  lines;  akenes  crowned  with  a  chaffy  pappus.  The  entire 
plant  is  used  as  a  bitter  tonic  and  vermifuge. 
Quauchichic,  Carya  ovata ;  Juglandacese ;  in  the  mountains  near  the 
Mexican  valley.  The  bark  enjoys  considerable  reputation  for  the 
cure  of  atonic  diarrhoeas. 
Quaumecatl,  Serjana  mexicana,   Willdenow;  Sapindacese;  in  hot 
and  moist  localities.    The  infusion  of  the  root  is  diuretic. 
Quelite,  Chenopodium  viride,  Lin.;  Chenopodiacese ;  in  the  Mexi- 
can valley.    The  leaves  are  alimentary  and  emollient. 
The  following  well  known  drugs  have  been  admitted  :  Quina  (cin- 
chona barks),  Rabano  cultivado  (radish),  Rabano  rusticano  (horse- 
radish), Rapontico  (European  rhubarb),  Romero  (rosemary),  Rosa  de 
Castilla  (rose  petals),  Rubia  or  Granza  (madder),  Ruda  (rue),  Ruibar- 
bo  de  China,  Sabina,  Sagapeno,  Sagu  (sago),  Salep,  Sandalo  cetrino  # 
(sandal  wood),  Sandalo  rojo  (red  saunders),  Sandia  or  Zandia  (water- 
melon seed),  Sangre  de  drago  (dragon's  blood),  Santonico,  Sassafras 
(root  bark),  Sauz  (willow  bark),  Sen  (senna  leaves),  Serpentaria  de 
Virginia  (Virginia  snake  root),  Simaruba,  and  Sumbul. 
Raiz  de  China  de  Mexico,  Smilax  pseudo-china,  Schlechtendal ; 
Smilacese ;  in  the  states  of  Morelos,  Colima,  &c.  The  root  is  large? 
oblong,  tuberous,  externally  bright  red,  internally  reddish  and  when 
cut  with  a  saw,  of  a  mahogany  color,  astringent  and  somewhat  bitter ; 
