Oedogonium verrucosum Hallas 1905, p. 408 

 PL 24, Figs. 2, 3 



Macrandrous; dioecious. Vegetative cells cylindric, 11-26/t in 

 diameter, 45-200/a long, the suffultory cell enlarged. Oogonia solitary 

 (sometimes 2); broadly ellipsoid or ovoid-globose; opening by a 

 superior pore; 56— 68/x in diameter, 56—94/1, long. Oospores globose 

 to ellipsoid-globose; not filling the oogonia; outer wall smooth; 

 median wall scrobiculate; 52-64/* in diameter, 44-68/x long. Anther- 

 idia 16/1 wide, the same in length. 



Mich. 



Oedogonium Wyliei Tiffany 1926, p. 90 

 PL 37, Figs. 13, 14 



Macrandrous; dioecious. Vegetative cells cyhndric, (16)-22.2-(24)/a 

 in diameter, (80)-148-(170)/i long. Oogonia 1-4; globose or ovoid- 

 globose; opening by a superior pore; (52)-55-56-(64)/t in diameter, 

 ( 56 ) -64-68- ( 112 )/t long. Oospores globose; nearly filling the 

 oogonium; outer layer of spore wall with deep scrobiculations; 

 48-50-(60)/i. in diameter. Antheridia 18/i in diameter, 12-16/i long. 



Attached to submerged aquatics. Mich., Wis. 



Se'::;ti()n 2 

 Macrandrous — Monoecious — Poriferous 



Oedogonium angustissimum West & West 1897, p. 6 



PL 44, Fig. 6 

 Macrandrous; monoecious. Vegetative cells cylindric, 1.8-2/a in 

 diameter, 13-25- ( 28 )/i long. Oogonia 2; inflated; 9/x in diameter, 

 10-13.5- (14.5) /A long; opening by a median pore (?). Oospores 

 elliptical; filling the oogonia laterally; wall smooth; 9-9.5/* in 

 diameter, 6/a long. 



Rare; attached to filamentous algae (usually larger species of 

 Oedogonium ) . Wis. 



Oedogonium areoliferum (Jao) Tiffany 1937, p. 29 



Macrandrous; monoecious. Vegetative cells cylindric, 6-IO/1 in 

 diameter, 25-64/x long. Oogonia solitary; depressed-globose; opening 

 by a median pore; 28-32/* in diameter, 25-41/i long. Oospores 

 depressed-globose; fiUing the oogonia; outer wall layer smooth, 

 median wall layer areolate; 25-29/t in diameter, 19-27/* long. 

 Antheridia rectangular, 6-IO/1 in diameter. 



Mich. 



[176] 



