Classification. 139 



The above description^ without locality or habitat, 

 is all that is known of this apparently distinct species. 



Aphanomyces, De Bary. 



Zoosporangia very long-, slender, cylindrical, 

 zoogonidia uniseriate ; oogonia usually containing one, 

 rarely two, oospores ; antheridia apical on vermiform 

 brauchlets, encirclinof the ooo-onia. 



Aphanomijces, De Bary in Pringsh. Jahrb. ii. p. 

 170 ; Sacc. Syll. vii. p. 276. 



Characterized by the slender, elongated zoo- 

 sporangia, with the zoogonidia in a single row, or 

 uniseriate. 

 Aphanomyces stellatus, De Bary (figs. 105 — 108). 



Myceh'um creeping, fertile branches erect, oogonia 

 when mature spherical, stellate, 26-35 /jl diameter, 

 including the rays; oospores spherical, 15-18 fi, one, 

 rarely two in each oogonium ; gonidia at first in chains, 

 either forming zoogonidia or producing germ-tabes. 



Aplianomijces stellatus, De Bary, Pringsh. Jahrb. 

 ii. p. 170, t. xix. figs. 1 — 13 ; Sacc. Syll. vii. n. 949. 



On putrid insects in water. Rare. 

 A second species, not recordedfor Britain, is parasitic 

 within the cells of various species of Spirogyra. 



Monoblepharis, Cornu. 



Mycelium asepiate, branched ; oogonia terminal, 

 sometimes appearing to be lateral owing to a con- 

 tinuation of growth of the hypha beyond the 

 oogonium, the latter being laterally deflected, 

 solitary, or superposed in chains of from 3 — 12 ; 

 antheridia formed from the cells immediately below, 

 and supporting the oogonia, or springing from 



