Oedogonium nodulosum Wittrock 1872, p. 22 

 Macrandrous; monoecious. Vegetative cells with 2 prominent 

 undulations and constrictions; 20-29/x in diameter, 30-140/t long. 

 Oogonia 1 or 2; obovoid-globose or obovoid-ellipsoid; operculate; 

 opening superior; 45-57/^ in diameter, 56-73/t long. Oospores globose 

 or subglobose-ellipsoid; nearly filling the oogonia; wall smooth; 

 46-53;u. in diameter, 49-56;ii long. 



Mich. 



Oedogonium oblongum Wittrock 1872, p. 2 



Macrandrous; monoecious. Vegetative cells cyhndric, 6-llu in 

 diameter, 20-86/x long. Oogonia solitary; oblong; operculate; division 

 superior; 20-26/x in diameter, 41-60/x long. Oospores ellipsoid to 

 ovate; not filling the oogonia; wall smooth; 19-23/a in diameter, 

 30-36;u long. Antheridia 6-9/a in diameter, 7-9/x long. 



Mich. 

 Oedogonium oblongum var. mqus Nordstedt in Wittrock 1876, p. 45 



Vegetative cells 8-1 1/x in diameter, 35-75/. long. Oogonia 26-28/* 

 in diameter, 42-50/t long. Oospores 22-26/x in diameter, 31-34/;. long. 

 Antheridia 4-9/* in diameter, 9-10/. long. 



Mich. 



Oedogonium oblongum var. minus Taft 1939, p. 81 

 PI. 43, Figs. 2, 3 



Vegetative cells 3-6/* in diameter, 16-35/* long. Oogonia 13-16/* 

 in diameter, 20-23/* long. Oospores 11-15/* in diameter, 17-21/* long. 

 Antheridia 5-6/* in diameter, 7/x long. 



Mich. 



Oedogonium pachydermum Wittrock & Lundell 



in Wittrock 1871, p. 125 



Macrandrous; monoecious. Vegetative cells cyhndric, 21-27/* in 



diameter, 34-120/* long. Oogonia solitary (sometimes 2); ellipsoid; 



operculate; division superior; 50-70/* in diameter, 75-100/* long. 



Oospores ellipsoid; not filling the oogonia; wall smooth; 40-60/* in 



diameter, 50-80/* long. Antheridia 18-21/* in diameter, 10-12/* long. 



Mich. 



Oedogonium poecilosporum Nordstedt & Hirn in Hirn 1900, p. 298 

 Macrandrous; monoecious or dioecious. Described in previous 



section. 



Oedogonium psaegmatosporum Nordstedt 1877, p. 24 



PI. 34, Fig. 4; PI. 37, Fig. 6 



Macrandrous; monoecious. Vegetative cells cylindric, elongate; 



9_10-(14)/* in diameter, (56)-57-80/* long. Oogonia 1-5, pyriform- 



[192] 



