PLATE XIII. 



Figs. 1-6. — Lytocarpiis racemifenis. 

 Fig. 1. — Natural size. 



Fig. 2. — Portion of hydrocladium, magnified ; lateral view. 

 Fig. 3. — Same ; front view. 



Fig. 4. — A branch with phylactocarps loaded with gonangia. 

 Fig. 5. — Portion of a iDhylaetocariD still further magnified. 

 Fig. 6. — Distal end of phylactocarp. 



