SOME NOVA SCOTIAN AQUATIC FUNGI. MOORE. 



235 



at the upper extremity of Gilholme's Lower Lake, about four 

 miles from the city of Sydney and south of the Cow Bay Road, 

 The observations of it were very incomplete. 

 The branched hyphse attained a maximum 

 length of about 2 mm - in the culture, but might 

 possibly have grown longer as it early became 

 overrun with bacteria, and it was found im- 

 possible to maintain it. The sporangia were 

 elongated egg-shaped and averaged about 

 30/*x90/A. The encysted zoospores were about 

 \0fji in diameter. These were not observed in 

 the act of swarming, but empty sporangia were 

 common and in some, as in the one figured (Fig. 

 24), a few zoospores had evidently failed to escape and had en- 

 cysted within the sporangium. Two or three sporangia may be 

 found formed at the extremity of a segment. No structures were 

 observed in this form corresponding to the conceptacula of 

 Reinsch 7 , and which are unhesitatingly referred by Dr. Thaxter 

 to the work of chytridiaceous parasites attacking the sporangias. 



24* 



