2SS 



BOTANICAL GAZETTE 



[OCTOBER 



Iii the lower sporophylls the bract and scale bundles originate 

 in close proximity at the base of the gap. In the lowest sporophylls 

 the vascular supplies to both organs originate as one bundle, and 



b 47 ft"' 

 41 



54 



"0 55 



W 43 J^ 44 A 45 ^ 46 



«; ft. fr. &. I 



Figs. 36-57. — KeteJceria Forlunei: fig. 30, longitudinal section of sporophyll, 

 X16; figs. 37-42, transverse sections of sporophyll from upper half of strobilus; 

 figs. 36-39, two scale bundles divide actively, a single strand is given off to each ovule 

 (fig. 4r, 0), X7; figs. 43-48, from one of lower sporophylls, bract and scale bundles, 

 close together in origin (fig. 47), gradually separate, X34i figs. 49-55, from one of 

 lowest sporophylls, bract and scale bundles united in origin gradually become distinct, 

 X34; fig. 56, longitudinal section of young sporophyll, scale (S) still comparatively 

 small, X7; fig. 57, transverse section of one of lowest sporophylls showing outgrowths 

 (.r, y) between ovules (0), X 16. 



the two systems separate later for their respective organs. In 

 some of the lowest sporophylls the scale supply begins blindly in 

 the scale. 



