11 



Fig. 12. Ccdrus (itlnntica. a, section through part of an acetolyzed pollen 

 wall; from top to bottom: cctosexine, endosexinous rods, eetonexine (homo- 

 geneous), endonexine (laminated; the black horizontal line indicates 1 /n; 

 X 22.000); b, endonexine (from another section; magnification greater than 

 in a). KMd B. M. Afzelius. 



Fig. 13. Cedrus deodara. For explanation of numerals see Fig. 2, p. 7. 



2-565617 G. Erdtman 



