oogonia, 14-18/i in diameter, 26-30/a long. Division of the suffultory 

 cell supreme. 

 Attached to submerged aquatics in many lakes. Mich., Wis. 



Bulbochaete intermedia DeBary 1854, p. 72 

 PI. 26, Fig. 9 



Nannandrous; gynandrosporous. Vegetative cells 17-19.5)u, in 

 diameter, 31-45- (70) /a long. Oogonia globose or depressed-globose, 

 (40)-43-44-(48);it in diameter, (37) -40-41^ long. Oospores globose 

 or subglobose; outer spore wall deeply scrobiculate; (SS) -49 fj. in 

 diameter, (30)-33-38/a long. Male filaments on the oogonia, (7.9)- 

 9-lOfjL in diameter, 31-35/a long. Division of the suffultory cell 

 median. 



On Drepanocladus and reeds in soft water lakes. Mich., Wis. 



Bulbochaete intermedia var. depressa Wittrock 1875, p. 44 



PI. 26, Fig. 8 

 A variety in which the vegetative cells are longer than in the typi- 

 cal, 14-19/A in diameter 30-80-(88)/t long. Oogonia depressed-globose 

 42-46/x in diameter, 30-40/1, long. Oospores depressed-globose, outer 

 spore wall scrobiculate; 40-44ja in diameter, 28-38/i, long. 

 In a swampy lake. Wis. 



Bulbochaete minor A. Braun in Kuetzing 1849, p. 422 



PL 26, Fig. 7 

 Nannandrous; gynandrosporous. Vegetative cells (18)-19-22- 

 (25) /A in diameter, 26-48- ( 50 )ja long. Oogonia ovoid, 30-40/a in 

 diameter, (58) -59-62- (69) /a long. Oospores ovoid; the outer spore 

 wall with longitudinal costae; 29-3&-(40)/x in diameter, 54-60-(67)/x 

 long. Male filaments on the oogonia or the suffultory cell. Division 

 of the suffultory cell supreme. 

 In a roadside fosse. Mich., Wis. 



Bulbochaete minuta West & West 1902a, p. 126 

 Nannandrous; gynandrosporous. Vegetative cells 9-12fx in diam- 

 eter, 18-35/x long. Oogonia depressed-globose; patent or erect; 

 29-35/1, in diameter, 24-27/a long. Oospores depressed-globose; wall 

 smooth; 27-33/i in diameter, 22-25/i long. Male filaments 6-7/<, in 

 diameter, 18-20/i long. Suffultory cell not divided. 

 Mich. 



Bulbochaete mirabilis Wittrock 1871, p. 137 

 PL 27, Figs. 1, 2 

 Monoecious. Vegetative cells 15.6-20-(25)/a in diameter, (20)-25- 

 40- (56) /A long. Basal cell 15.6/i, in diameter, 23.4/1 long. Oogonia 



[151] 



