328 
North  American  Conifer  ce. 
j  A.m.  Jour.  Pharm. 
I       June,  18C6. 
bundles  are  rather  small,  and  each  has  two  or  three  medullary  rays. 
Within  the  area  enclosed  by  the  epidermis  there  are  either  no 
Fig.  32,  cross-section  of  leaf  of  Pinus  Montana,  magnified  100  diameters. 
St,  stoma;  ep,  epidermal  cell;  hy,  thin-walled  hypodermal  cell;  sec.  r.,  secretion 
reservoir. 
lignified  fibres,  or  only  a  very  few,  except  those  which  belong  to 
the  xylem  of  the  bundles.  The  mesophyll  and  transfusion  tissues 
present  no  peculiarities. 
