224 



SOME NOVA SCOTIAN AQUATIC FUNGI. — MOORE. 



oogonia were covered with short, blunt, wart-like outgrowths, 

 and the supporting; branches of the oogonia were shorter than 

 the typical form. Its characteristics remained constant through 

 sev'eral o-enerations, but it was obtained only from the one 

 source. It appears to agree very closely with Trovv's A. 

 americava var. cainhHca^. 



A. (J^'Bari/diia l{nm\)h. = A. 2)oly and ra deBary (Figs. 5-8). 



Hyphffi robust and long' 

 reaching one centimetre. 

 Sporangia produced in mod- 

 erate numbers — somewhat 

 spindle shaped, with a longer 

 tapering apex than in most 

 Achlyas, often developed in 

 basipetal succession. Oogonia 

 spherical, terminal on short, 

 straight lateral branches, 

 lacemosely arranged or on 

 main filaments. Walls thick- 

 ened, but not pitted. Oospores 

 2-10 in an oogonium, usually 

 2-5 ; 23/X-35/A in diameter, 

 excentric. A n t h e r i d i a 1 

 branches produced on fila- 

 ments bearing oogonia, very 

 long and much branched, the 

 bi-anches uniting indifi'erently with oogonia boi'ne on the same 

 filament or on others. The antheridia are long, cylindrical or 

 slightly clavate and wrapped about the oogonia — several to 

 each. 



The material in wliich this species appeared was taken from 

 a pool near the Grand Lake Road, Sydney, near a large brook 

 flowing into Grand Lake. The walls of the oogonia, while not 

 definitely pitted, show a few small more lightly stained areas 



