









314 



DB. M. T. MASTERS OH THE MORPHOLOGY, 





the upper portion bearing numerous bracts, the more perfect of 

 which had a central apical lobe prolonged into a long tube or 



acumen and two smaller side-lobes. . With 



of 





xa 



•x-i6o- 



1 



X 3 







at 















,..-■■'*-. 





.•• 



• > 



x-m 







Fig. 20.— Bisexual cones of Pinus Thunbergii ; with details of structure and 



pollen-grains. 







* * 







bracts 



renifonn 



with rudiments 



On making 



sections in various directions it seemed, in this case, as if the fruit- 

 scale, though produced in the axil of the bract, was not an enation 

 from it, but an outgrowth from the axis above it, it being mostly 

 quite free from the base of the bract, whilst its vascular system 

 proceeded direct from the axis. 



Prolifi 



Adverting now to proliferous cones, 



or 



those in which the central axis is prolonged beyond the bracts 

 and scales, it may be said that they are not uncommon, it being 



otnena 















in which some of the cones are not so altered. With 

 of SciadopitySy to which special attention must be { 



























. 







- 

















» 





- 































i 







_ 





■ 



» 







i 

















