Notes  on  the  Dasheen  and  C 'ha vote.  {Am-  -Touj"-  pharm- 
Ow  -  i     August,  1919. 
to  irregularly  ovate  or  angular.  Some  of  these  are  devoid  of  stria- 
tions  or  a  distinct  hilum,  while  others,  as  shown  in  Fig.  5,  show 
both  of  these  structures.  In  size,  they  range  from  3  \x  to  19.2  /a. 
The  hilum,,  when  distinct,  varies  from  linear  to  circular,  to  angular 
or  to  several  cleft.  The  lamellae  and  striatums,  when  distinct,  are 
always  concentric.    These,  along  with  the  hilum,  may  be  well  ob- 
Fig.  4.  Cross  section  of  a  portion  of  the  corm  of  Colocasia  esculenta 
(Trinidad  Dasheen),  cleared  with  potassium  rrydroxide  solution,  showing 
cork  (k),  phellogen  (ph),  raphides  of  calcium  oxalate  (R),  trachea  (t),  and 
sieve  tube  (si)  of  concentric  fibrovascular  bundle,  and  longitudinal  view  of 
portion  of  a  bundle  (b) .    X  18. 
served  in  a  mount  stained  with  dilute  gentian  violet.  Scattered 
throughout  this  region  are  to  be  noted  numerous  mucilage  reser- 
voirs of  irregularly  rounded,  oval  or  ellipsoidal  outline,  whose  con- 
tents are  deeply  stained  with  basic  aniline  dyes. 
The  fibrovascular  bundles  are  of  concentric  type  and  may  be 
found  scattered  throughout  the  section  in  irregular  fashion.  From 
