102 RESEARCHES ON FUNGI 



discovered that in this species the protoplasm often streams rapidly 

 through the hyphae and sometimes so violently that it dislodges 

 the vacuoles and carries them along. Subsequently I observed 

 streaming in the mycelium of several other Higher Fungi, the names 

 of which are set forth in the accompanying list. 



Higher Fungi in which Protoplasmic Streaming was observed 



by the Author. 



/-r, (Fimetaria fimicola 



Pyrenomycetes J 



( Gelasinospora tetrasperma 



Ascomycetes 



i Pyronema confluens 



Discomycetes j Ascophanus carneus 



ICiboria sp. 



t) . j . TT | Rhizoctonia solani 



.bSasidiomycetes Hymenomycetes ] 



[ (= Corticium solani) 



An account of my investigations on protoplasmic streaming in these 

 fungi will be given in what follows and, in general, it will serve to 

 verify and extend the observations on protoplasmic streaming in 

 septate mycelia made by Ternetz and others whose contributions to 

 this subject have been reviewed in the foregoing pages. 



After the work on protoplasmic streaming in the Higher Fungi 

 had been brought to a conclusion, I investigated streaming and the 

 formation of septa in Rhizopus nigricans and thus obtained data 

 which have enabled me to compare the mycelium of one of the 

 Phycomycetes with that of the Ascomycetes and the Basidiomycetes. 

 The results of the studies made on Rhizopus nigricans will be given 

 toward the end of this Chapter. 



Fimetaria fimicola. — Fimetaria fimicola (Roberge) Griffiths and 

 Seaver (= Sordaria fimicola Ces. and de Not.) is a fimicolous 

 Pyrenomycete (cf. Fig. 56) which occurs on the dung of horses, cows, 

 goats, rabbits, sheep, and deer, and also on old paper, in Europe 

 and North America. 1 At Winnipeg it is frequent on horse dung. 



1 F. J. Seaver, "The Fimetariales," North American Flora, Vol. Ill, Part I, 1910, 

 pp. 66-67. 



