BULLETIN OF THE BUSSEY INSTITUTION. 431 
LAMPRODERMA COLUMBINUM, Rostafinski. (Physarum, Pers.) LEast- 
port, Me. October, 1875. 
TiLMADOCHE NUTANS, Rostafinski. (Physarum, Pers.) Newton; 
Wood’s Hole. 
PuysAruM Fartown, Rostafinski. Newton. 
PHYSARUM SinuOosUM, Rostafinski. (Angioridium, Grey.) Newton ; 
Wood’s Hole. 
Lreocarpus VERNICOSuUs, Lk. Newton; Wood’s Hole. Common. 
Fuxigo seprica, Rostafinski. (/thalium, Fr.) Common near Bos- 
ton. 
Dipymium cLavus, Fr. Bussey Woods. 
DipymMiuM xAnTuoprus, Fr. On moss and dead leaves. Wood’s Hole. 
Common. 
DIDERMA GLOBOSUM, Pers. Wood’s Hole. On leaves. Comuinon. 
TRICHIA CHRYSOSPERMA, D.C. Newton. Common. 
TRICHIA PYRIFORMIS, Hoffm. Newton. 
HeEMITRICHIA CLAVATA, Rostafinski. Newton. 
ARCYRIA PUNICEA, Pers. Common. 
ARCYRIA NUTANS, Grev. Newton. Wood’s Hole. Rather common. 
ARCYRIA CINEREA, Fl. Dan. Newton. 
LACHNOBOLUS GLOBOsUS, Rostafinski. (Arcyria, Schw.) Newton. 
Common on chestnut burrs and leaves. 
MUCORINI. 
Mucor Syzyaires, De Bary. (Syzygites megalocarpus, Ehr., and 
Sporodinia grandis, Lk.) Common on decaying agarics. Wood’s Hole; 
Newton. 
Mucor Mucepo, L. On all decaying substances. 
Mucor rAcrEMosus, Fres. On horse-dung. Bussey Inst. 
Mucor sTo.onirer, De Bary. (Ascophora mucedo, Tode; Rhizopus 
nigricans, Ehr.) On decaying articles of food everywhere. 
Mucor Puycomyces, Berk. (Phycomyces nitens, Kze.) Found by 
Dr. C. F. Folsom in the sewers of Boston; also growing luxuriantly at 
the Bussey laboratory from specimens sent from Strassburg by Dr. Stahl; 
Cambridge, on bones. 
THAMNIDIUM ELEGANS, Lk. Bussey Inst. On horse-dung. 
CuaTocLabiuM Jonesu, Bk. and Br. Bussey Inst. On horse-dung. 
PIpTOCEPHALIS FRESENIANA, De Bary. Bussey Inst. On horse-dung. 
MoORTIERELLA POLYCEPHALA, Van Tieghem. JBussey Inst. On 
horse-dung. 
PILOBOLUS CRYSTALLINUS, Tode. Bussey Inst. and Cambridge. 
On horse-dung. Very common. 
