84 Field Columbian Museum — Botany, Vol. 1. 



SPIRILLUM Ehrenb. 



S. UNDULA (Muell ) Ehrenb. 



In infusion of hay {MillspaitgJi). 



BACTERIUM Ehrenb. 



B. LiNEOLA (O. F. Muell) Cohn. 



In infusion of radish {MillspaiigJi). 



B. Termo (O. F. Muell.) Ehrenb. 



In various decomposing organic substances [Millspaugh). 



MICROCOCCUS (Hall.) Cohn. 



M. Crepusculum (Ehrenb.) Cohn. 



Found associated with Bacterium Termo in decomposing vege- 

 table infusions {Millspaugh). 



M. AMYLOVORUS Burrill. 



On fruit of Pyrus communis, Monongalia Co. , near Morgan- 

 town {Alillspaugli). 



M. AURANTIACUS, Cohu. 



Caught on sterilized potato in laboratory [Millspaugh). 



M. LUTEUs Cohn. 



Caught on sterilized potato in laboratory [Millspaugh). 



STREPTOCOCCUS Billr. 



S. PYOGENES (Rosenb.) Zopf. 



Micrococcus septicus, Cohn. In blood of dead calf {Millspaugh), 



S. URE/E (Cohn.) Trev. 



Micrococcus urece, Cohn. In decomposing urine [Millspaugh). 



SACCHAROMYCETACE^. 



SACCHAROMYCES Meyen. 



S. CEREVisi^ Meyen. 



In Pasteur's liquid left uncorked in laboratory {Millspaugh).' 



S. MYCODERMA Reess. 



On same liquid as above at same date {Millspaugh). 



DIATOMACE^. 



Cymbella gastroides, Kuetz. 

 Cymbella turgida (Grun.) Greg. 

 Stauroneis Phcenicentron Ehrb. 

 Navicula viridis, Kuetz. 

 Navicula major, Kuetz. 

 Navicula nobilis (Ehrb.) Kuetz. 



