222 



SOME NOVA SCOTIAN AQUATIC FUNGI. — MOORE. 



Genus, Saproleg^nia Nees von Essenbeck. 



S. monoica Pringsh. (Figs. 1 and 2). Hyphse robust, gener- 

 ally not very long. Sporangia 

 cylindj-ical. Oogonia abun- 

 dant, spherical, on short 

 generally straight lateral 

 branches or terminal on the 

 main filaments. Walls with 

 very large pits,oospores 2-12^ 

 1 usually 4-6 ; 24/^-27/^ in dia- 

 meter, centric. Antheridial branches, rather stout, 

 arising from the main filaments near the oogonial 

 branches, one or more to each oogonium. Antheridia 

 nearly cylindrical, long and partially encircling the 

 oogonium. 



This species appeared in a culture made from material taken 

 from a swamp alongside Columbus Avenue, in the city of Sydney, 

 in May, 1908, and in November of the same year in a culture 

 made from a collection frou) a pool neai- the Washing Brook in 

 the same town. 



*S'. diclina Humph. (Fig. 3). Hyphae as a rule not very long, 

 rarely exceeding .5^'"-. Sporangia 

 cylindrical. Oogonia spherical, ter- 

 minal on short straight lateral 

 branches or on the main filaments, 

 rarely intercalary. Walls pitted, but 

 the pits are small and inconspicuous- 

 Oospores 4-2o, generally 8-10 in an 

 oogonium ; 22/i-26/i in diameter, 

 centric. Antheridial branches of 

 diclinous origin, delicate. Numerous 

 antheridia attached to each oogonium, short clavate. 



This species appeared in cultures made from material taken 

 from a small brook flowing from Kehoe's Lake, near Sydney, 

 and also from n)aterial collected at Cossitt's Lake. 



