SOME NOVA scon AN AQCATIC FUNGI. — MOORE. 



227 



A. apiculata, the oogonial branches frequently branch, each 

 twig terminating in an oogonium. Rarel\^ an intercalary 

 cylindrical oogonium has occurred in cultures. 



A. apicidata deBary (Figs. 10-13). Hyph^e stout, at times 

 considerably exceeding IOO/j- in diameter at the base and reaching 

 1.5^"^- in length. Zoosporangia generally very abundant, some- 

 what spindle shaped, Oogonia spherical or slightly ellipsoidal. 



terminal on lateral branches, racemosely arranged and usually 

 curved ; rarely intercalary ; commonly terminating in a short 

 apiculus. Walls smooth and unpitted. Oospores 1-10, generally 

 3-5 on an oogonium, large and dark-colored when young, 

 33-40/i in diameter, centric. Antheridial branches arising as in 

 the last species, but frequently unbranched Antheridia, several 

 to each oogonium, short clavate or almost ovate. 



This species appeared in a large number of cultures made 

 from materials collected at Mt. Thorn, Pictou county, and in 



