300 



BO TA NIC A L GA ZE T TF. 



4. A J*- 



143 144 145 146 



e <%'_* rTv/^o^, 



Figs. 142-154. — Araucaria Balansi: fig. 142, vascular supply to sporophyll springs 

 from single strand near base of cylinder gap; figs. 143-146, course of bundles in cortex; 

 figs. 147-152, transverse sections of sporophyll, lines drawn between bundles indicate 

 last division; upper bundles run together in groups and end in large irregular tracheids 

 (fig. 151); one persists almost to free portion of scale (fig. 152); fig. 153, longitudinal 

 section of sporophyll (S, scale or ligule; B, bract, 0, ovule); fig. 154, transverse 

 section of sterile sporophyll at base of strobilus, upper bundles few; X S . 5. 



