Am  jour.  Pharm.  |  Xotcs  on  the  Dasheen  and  Chayote. 
August,  19 19.    J  J 
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lar  when  observed  in  tranverse  section.  Many  of  the  cells  of  this 
tissue  possess  starch  grains.  Branched  stellate  hairs  and  glandular 
hairs  are  scattered  over  this  tissue  (Fig.  15). 
Fig.  13.  Cross  section  through  portion  of  Chayote  pericarp  including 
zone  of  union  O)  of  receptacular  (R)  with  capellary  (C)  portions;  fibro- 
vascular  bundle  running  transversely  (v),  and  tracheae  (t)  running  longitudi- 
nally.   X  /O- 
Fig.  14.  Transverse  section  of  area  of  endocarp  and  mesocarp  of 
Chayote  fruit,  facing  that  portion  of  the  central  cavity  which  is  not  occupied 
by  seed,  showing  endocarp  (e),  which  is  thicker-walled  in  this  region  than 
elsewhere  and  mesocarp  (mes).    X  7°. 
Fig.  15.  To  right,  Transverse  section  of  representative  portion  of  a 
cotyledon  of  Chayota  edulis  Jacq.,  showing  epidermis  (<?/>),  spongy  paren- 
chyma (sp),  starch  grains  (st),  and  veins  {v).  X  I2o.  To  left,  stellate  hair 
from  epidermis  of  cotyledon.    X  QO- 
Beneath  the  epidermis  will  be  noted  spongy  parenchyma  tissue 
composed  of  somewhat  spheroidal  to  polygonal  shaped  cells  contain- 
ing starch  grains,  which  are  mostly  simple,  spheroidal  or  piano- 
