Fig. i. — Pinus tnaritima: longitudinal section of ovulate strobilus; vascular 

 supplies to bract and scale of each sporophyll, separated in cortex of strobilus by mass 

 of parenchyma in upper portion, approach one another near middle and merge in 

 lower portion of strobilus; in lower portion of strobilus scale decreases in size, while 

 bract becomes comparatively larger. 



