Oedogonium hohemicum Hirn 1900, p. 169 

 PI. 37, Fig. 3 

 Macrandrous; monoecious. Vegetative cells capitellate, ( 10) -14.8- 

 15-(16)/x in diameter, (21)-48-53-(66)/i, long. Oogonia solitary; 

 globose; operculate; division superior; 40.7-42- ( 45 )/x in diameter, 

 44-46- ( 49 )/x, long. Oospores globose; filling the oogonia; wall 

 smooth; 38-43/x in diameter, 38-43/i, long. Antheridia 10.7/x in 

 diameter, ( 5 ) -6-7- ( 8 ) /a long. 

 In a roadside fosse. Wis. 



Oedogonium crispwn ( Hass. ) Wittrock 1875, p. 10 



PI. 44, Fig. 5 

 Macrandrous; monoecious. Vegetative cells cylindric, (10)-12-15ju, 

 in diameter, 35-42-(80);a long. Oogonia solitary; subglobose or 

 obo void-globose; operculate; division superior; (37)-39-42-(45)|ii 

 in diameter, 42-50- ( 53 )/a long. Oospores subglobose; the wall 

 smooth; 35-40-(43)/x in diameter, 35-40-(43)/x long. Antheridia 

 8-1 4/i, in diameter, 7-12/x long. 



In small pools on beach of lake. Wis., Mich. 



Oedogonium crispum fa. inflatum Hirn 1900, p. 161 



Vegetative cells 12-16/x in diameter, 35-95ju, long. Oogonia obovoid- 

 globose, 40-50|a in diameter, 45-53/x long. Oospores 37-45/i, in 

 diameter, 38-45/a long. Antheridia 8-12/a in diameter, 9-12/x long. 



Mich. 



Oedogonium gracilimum Wittrock & Lundell in Wittrock 1875, p. 15 



PI. 34, Figs. 13, 14 



Macrandrous; monoecious. Vegetative cells cylindric but often 

 irregular, forming crooked filaments, epiphytic on other species of 

 Oedogonium; (4)-5.2-5.5-(7)/. in diameter, 15-22- ( 42 );a long. 

 Oogonia solitary; oblong; operculate; division superior; 14-19/x in 

 diameter, 34-40//, long. Oospores oblong-ellipsoid; not filling the 

 oogonia; 13-17/x in diameter, 25-28- ( 32 )/t long. Antheridia 3-5/x in 

 diameter, 5-7/x long. 



In a roadside fosse. Mich., Wis. 



Oedogonium Gunnii Witti'ock 1875, p. 37 



PI. 34, Figs. 15, 16 



Macrandrous; monoecious. Vegetative cells cylindric or slightly 



capitellate, 6-9.2- (10)/. in diameter, ( 16.6 ) -20.3-30- ( 45 )/x long. 



Oogonia 1-4, depressed-globose; operculate; division median and 



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