102 Proceedings of the Ohio State Academy of Science. 



N. sp. In shallow pools, clinging in clusters to the sphagnum and 

 cranberry stems lining the basin. Bog meadow, Cranberry 

 Island. 



N. sp. Frequently found in the large hyaline cells of sphagnum. 



Anabaena sp. Forms a fine green powdery layer over the surface 

 of the ponds and lagoons at the margin of Cranberry Island. 



Conjugatae 

 Mougeotiaceae. 



Mougeotia sp. In the ponds of the bog meadow, Cranberry 



Island. 



Spirogyraceae. 

 Spirogyra sp. Various species of Spirogyra are quite abundant 



and of general distribution in shallow water. 



Protococceae 

 Protococcaceae. 



Chlorochytrium lemnae Cohn. Endophytic in the leaves of 

 Lemna trisulca. 



Siphoneae. 



Cladophoraceae. 



Cladophora sp. Of general distribution in shallow water, 



FUNGI. 



Pyrenomycetae. 

 Erisibaceae. 



Erisiphe cichoracearum DC. On leaves of Aster puniceus, shrub 

 zone, Cranberry Island. 



Discomycetae. 

 Helotiaceae. 

 Phialea scutula (Pars.) Gill. (Helotium scutula (Pers.) Karst.) 

 On dead Hibiscus stems Orchard Island. 



