1015] 



AASE—MEGASPOROPIIVLLS OF CONIFERS 



-'95 



The two scale bundles divide, resulting in the sporophyll in a ring 

 of bundles with xylem facing inward. Included in the lower 

 portion of the ring is the bract bundle. One and sometimes two 

 bundles enter each lobe of the scale. A number of the scale bundles 



109 110 112 



Figs. 105-113. — Junipcrus communis: figs. 105-1 10, course of bundles from base 

 of strobilus to middle of three sporophylls; sporophylls closely coalesced at base; 

 some of scale bundles come to lie in same plane as bract bundle (6); figs, in, 112, 

 transverse sections of tip of sporophyll, bract apparent as small ridge (B); fig. 113, 

 longitudinal section of strobilus; 0, ovule; stb, sterile bracts below strobilus; X16. 



pass into the free portion of the bract at each side of the bract 

 bundle and have the same orientation of parts as the bract bundle. 

 The ending of each bundle is accompanied by short irregular 

 tracheids. The scale bundle may arise in closer proximity to the 



