DIVISION EIGHT — SCIENCE. 609 



SPUMARIA Pers. 



S. ALBA (Bull.) DC. On living willow stems. A. S. February — October. 

 DIACHEA Fries. 



D. LEUCOPODA (Bull.) Rost. On dead and living leaves. Com. January — April 

 B.\DHAMIA Berk. 



B. HYALINA Berk. On decaying wood in L. R. C February — April. 

 FULIGO Hall. 



F. SEPTiCA (Link.) Gmel. On decaying wood. Frequent. February — April. 

 PHYSARUM Pers. 



P. CINEREUM (Batsch.) Pers. On small living plante. January — March. 



CLASS II. SCHIZOPHYCE./E. Fission-Plants. 

 Order Cystiphorce. One celled blue-green Algae. 



CHROOCOCCUS Naeg. 



C. COHCERENS (Breb.) Naeg. Common in stagnant water. 

 MERISMOPEDIA Mey. 



M. GLAUCA (Ehrb.) Naeg. In watering-trough. 



Order Neniatogence. Filamentous blue-green Algae, Bacteria, etc'. 



NOSTOC Vauch. 



N. MUSCORUM Ag. Frequent among moss. January — April. 

 N. PRUFIFORME (Rotli. ) Ag. Common in running water. 

 N. RUPESTRE Kuetz. Among moss on moist banks. 

 N. SPHAERICUM Vauch. On wet soil. Januarj' — April. 

 ANABAENA Bory. 



A. STAGNALis Kuetz. In moist banks. June — October. 

 OSCILLARIA Bosc. 



O. ANTLIARIA Juerg. In reservoir. 



O. BREVis Kuetz. On wet soil. 



O. MAJOR Vauch. In pond at Oak Knoll, A. S. 



O. TENERRiMA Kuetz. In stagnant water m Arroyo Seco. 



O. TENUIS Ag. Common. In water and on wet soil. 

 LEPTOTHRIX Kuetz. 



L. CAESPiTOSA Kuetz. In watering-trough. 

 CLINDROSPERMUM Kuetz. 



C. COMATUM Wood. In stagnant water in Arroyo Seco. 



O. FLEXUOSUM (Ag.) Rab. Among moss on moist banks. 



O. MACROSPERMUM Kuetz. In stagnant water in Arroyo Seco. 

 LYNGBYA Ag. & Thur. 



L. OCHRACEA (Dill) Thur. On a moist bank. 

 TOLY'POTHRIX Kuetz. 



T. DiSTORTA (Muell.) Kuetz. Rubio Canyon — on rocks under running water. 



MASTIGONEMA (Fisher) Kirch. 



M. AERUGiNEUM (Kuetz.) Kirch. Among damp moss. 



M. FERTILE Wood. In reservoir. 

 HAPALOSIPHON Naeg. 



H. BRAUNli Kuetz. In aquarium in laboratory. 



BEGGIATOA Trevisan. 



B. ALBA (Vauch.) Trev. Frequent in stagnant water. 



MICROCOCCUS Cohn. 



M. CREPUSCULUM (Ehrb.) Cohn. In decaying fish. 



ASCOCOCCUS Zopf. 



A. BiLROTHii Stern. In putrid vegetable infusion. 



BACILLUS Cohn. 



B. ACETi (Kuetz ) Cohn. In vinegar. 



B. ACiDi LACTici Hueppe. In sour milk. 



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