Bulbochaete setigera (Roth) C. A. Agardh 1817, p. 71 

 PI. 28, Figs. 10, 11 



Nannandrous; gynandrosporous. Vegetative cells elongate, 20-28/x 

 in diameter, (62)-121-140/x long. Oogonia depressed-globose, 70-80/i, 

 in diameter, (40) -56-65^ long. Oospores depressed-globose; outer 

 spore wall finely scrobiculate; (64)-67-77/x in diameter, (53)-57-62/x 

 long. Dwarf male filaments on or near the oogonia, 4-5ju, in diameter, 

 26.6^ long- Division of suffultory cell median or supramedian. 



Attached to grass in a ditch through a Sphagnum bog; on 

 submerged aquatics in lakes and ponds. Mich., Wis. 



Bulbochaete tenuis (Wittr.) Hirn 1900, p. 368 

 Nannandrous; gynandrosporous. Vegetative cells 13-16)li in diam- 

 eter, 20-40/i, long. Oogonia suboblong-ellipsoid; erect or patent; 

 22-26/i, in diameter, 42-48/a long. Oospores ellipsoid or oblong- 

 ellipsoid; outer spore wall with longitudinal costae; 20-24/i. in 

 diameter, 40-46^ long. Male filaments 12-14/x in diameter, 24-31/x 

 long. Division of suffultory cell superior. 

 Mich. 



Bulbochaete valida Wittrock 1872, p. 17 

 PI. 24, Fig. 8 

 Nannandrous; gynandrosporous. Vegetative cells 23-27/x in diam- 

 eter, 46-95/x long. Oogonia depressed-globose; patent; 59-70/x in 

 diameter, 48-56/a long. Oospores depressed-globose; outer spore 

 wall coarsely scrobiculate; 57-68/a in diameter, 46-54/a long. Male 

 filaments 9-10/t in diameter, 43-51/x long. Division of suffultory cell 

 median. 



Bulbochaete varians Wittrock 1871, p. 143 

 PI. 28, Figs. 7-9 



Nannandrous; gynandrosporous. Vegetative cells 17-19.5- ( 22 );a 

 in diameter, 22-33- (54.6)/;, long. Oogonia oblong-ellipsoid to sub- 

 cylindrical, (30)-31.2-(36)/x in diameter, (44)-48-50.7-(54)/x long. 

 Oospores oblong-ellipsoid; outer spore wall ribbed with serrate 

 costae; (27.3)-28-34/x in diameter, (47)-46.8-(52)/. long. Dwarf 

 male filaments on the oogonia or suffultory cell; 12.6/x in diameter; 

 27.3/i, long. Antheridial cell 8/x in diameter, 12/a long. Division of 

 suffultory cell supreme. 



Attached to submerged grass. Mich., Wis. 



Bulbochaete varians var. subsimplex (Wittr.) Hirn 1900, p. 357 

 Vegetative cells 13-18^^ in diameter, 16-34/1 long. Oogonia 26-30/i 

 in diameter, 39-46/t long. Oospores wdth either smooth or serrate 



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