130 Brilish Fungi. 



minal on tlie filaments or axillary ; zoogonidia ovate, 

 2 ^ long, furnished with two cilia about 12 /u. long. 



Leptomitus lactens, Ag. Syt. p. 50 ; Sacc. Syll. 

 vii. 888. 



Saprolegnia ladea, Pringsh. Jahib. vol. ii. t. xxiii. 

 f. 10, and t. XXV. figs. 1 — 6. 



In ditches and rivers, attached to wood, aquatic 

 plants, &c. Not uncommon. 



Leptomitus hrachynema, Hildebr. (fig. 28). 



Filaments constricted at intervals, short, sparingly 

 branched, forming small flowicg tufts ; zoosporangia 

 globose, generally containing six zoogonidia, terminal 

 and solitary or aggregated, 28-35 yit diameter; oogonia 

 irregularly globose, adnate with the wall of the globose 

 colourless oospore. 



Lejjtomitus hracliynema, Hildebrand, in Pringsh. 

 Jahrbuch, vi. p. 261, t. xvi. figs. 12 — 23; Sacc. Syll. 

 vii. 889. 



Forming short, dirty white, flowing tufts, attached to 

 submerged bodies in stagnant water. Rare. 



Numerous forms considered by Kutznig as algae, 

 and referred to by Saccardo as doubtful species of the 

 present genus, have occurred in various chemical solu- 

 tions, such as hydrate of ammonia, phosphoric acid, &c. ; 

 also in various other solutions. 



Saprolegnia, Nees. 



Filaments not constricted, branched ; zoosporangia 

 clavate or cylindrico-clavate, after the zoogonidia 

 escape the transverse septum at the base of the zoo- 

 sporangium grows up as a second zoosporangium 

 enclosed within the first empty one ; zoogonidia com- 



