Classification, 95 



then blackisli, columella cylindrical, thick, blackish- 

 blue ; spores elliptic-fusiform, or elliptic-oblong, very 

 pale olive, 35-40 X 10-12 yu,. Zygospore barrel-shaped, 

 200-400 yLt diam., blackish-brown. 



S p melius fusiger, Van Tiegh. Ann. Sci. Nat. 1875, 

 p. Q^, t. 1, figs. 29—37 ; Sacc. Syll. vii. 699. 



Mucor fusiger, Cke. Hdbk. n. 1886. 



On decaying agarics. Not common. Forming a 

 dry, shining, olive-brown felt, somewhat resembling 

 Phycomyces nitens, but distinguished by the spinose 

 mycelium. 



Sporodinia, Link. 



Sporangiferous hyphte septate, repeatedly dichoto- 

 mously branched above ; sporangia terminal on the 

 ultimate branchlets. Zygospore-forming branches, 

 smooth, straight. 



Sporodiniay'Lmk, Sp.pl. vi. 1, p. 94; Sacc. Syll. 

 vii. p. 206. 



Sporodinia, Cke. Hdbk. p. 635 (gonidial stage). 



Syzygites, Cke- Hdbk. p. 636 (sexual condition). 



Distinguished amongst its allies by the regularly 

 bifurcating branches of the sporangiferous hyph^e, and 

 by the straight, smooth branches of the zygospore. 



Sporodinia aspergillus, Schrot. (figs. 6-11). 

 Tufts, at first white, then ochraceous ; sporangi- 

 ferous hyph^e erect, numerous, branched above 4 — 6 

 times in a dichotomous manner, branchlets spreading, 

 each terminating in an obovate, pellucid sporangium ; 

 columella hemispherical ; spores very unequal in size, 

 subglobose, colourless, then often tinged olive, 15_ 

 30 iJb. Mycelium of sexual stage olive brown, 



