300 BOTANICAL GAZETTE [OCTOBER 
Fics. — 54- Paving -aeaeagae fig. — vascular supply to wna springs 
gap 143-146, course of bundles in cortex; 
figs. 1 147-1 52, transverse sections of sporophyil, gree drawn between Seles indicate 
last division; upper bundles run together in groups and end in large irregular tracheids 
(fig. 151); one persists almost to free tg of scale (fig. 152); < TEs; longitudinal 
section of sporophyll (S, scale or ligule; B, bract, 0, ovule); fig. 154, transverse 
section of sterile sporophyll at base of eroblius, upper bundles ec K8.5. 
