PLATE 35 

 AcHLYA Orion 



Figs. I and 2. Oogonia with single egg and unbranched antheridia. X 233. 



Fig. 3. Oogonium with branched antheridia. X 233. 



Fig. 4. Oogonial stalk arising from the wall of another oogonium. X 233. 



Fig. 5. Eggs showing a late stage in maturation with several oil droplets not yet united 



into one large drop. X 387. 

 Fig. 6. Oogonium with a typical long stalk. X 233. 

 Fig. 7. Cluster of oogonia, one of which is barrel-shaped with the eggs in distal end and a 



perforated wall partly separating the two ends. Grown on a bit of boiled corn 



grain in di.stilled water at room temperature. X 233. 

 Fig. 8. Oogonia on a very much distorted oogonial stalk, as typical when cultivated three 



days in electric oven with temperature of 36° centigrade. X 233. 

 Fig. 9. Oogonium with diclinous antheridium and ripe egg, showing oil drop. X 387- 

 Fig. 10. Oogonium with antheridia arising from oogonial stalk and main hyphae also. X 



23:v 

 Fig. II. Habit sketches to show appearance of oogonia and antheridia and occasional 



behavior of spores. X 97. 

 Figs. 12 and 13. Habit of sporangia. X 97. 

 Fig. 14. Spores emerging from cysts. X 720. 

 Fig. 15. Habit of sporangia. X 97- 



