290 BOTANICAL GAZETTE [OCTOBER 
actively; the majority come to lie near the dorsal side of the 
sporophyll and have inverted orientation of xylem and phloem, 
but several twist around to each side of the bract bundle and have 
Fics. 58—-70.—Cupressus Rentheonts Be. 58, jonpituding!, ety) - _ stro- 
bilus, scale (S) evident only by sli nd begin- 
ning of scale bundles; fig. 50, longitudinal section of older strobilus, scale (S) evident 
but incorporated with tissues of bract (B), 7; figs. 60-67, three methods of origin of 
sporophyll bundles; figs. 60, 61, bract (6) and ne bundles (s) distinct in cylinder 
gap; figs. 62-64,-bract bundle derived from one of scale bundles (bs); figs. 65-67, 
bract bundle derived from both scale bundles (bs); figs. 68-70, transverse sections of 
sporophyll, scale bundles divide vigorously, some scale bundles persist in bract portion 
(fig. 70, B), X16; o, ovule. 
