CALIFORNIA ACADEMY OF SCIENCES. 257 



Cyphella Ravenelii, B. & C. — On Arbutus Menziesii, 

 Tamalpais, March. 2255. 



Mycenastrum corium, Desv. Gregarious depressed-glob- 

 ose, at first white, becoming brownish, 1 — 1 inches in 

 diameter. Collected in Solano County, June, 1885, by 

 Alpheus Bull, Jr. Found also at Reno, Nev. 4000. 



Spores and flocci agree exactly with published description 

 and figures of this species. 



POLYSACCUM CRASSIPES, DC. 



This species was collected during the past year on Mt. 

 Diablo and on Grizzly Peak, near Berkeley, by Charles D. 

 Haines and Walter Eastman. The specimens are irregu- 

 larly clavate, one of them deeply 3-cleft from the top 

 downward and all are A T ariously contorted and twisted, dark 

 brown in color, with a bluish metallic bloom. The largest 

 is seven inches in height and fourteen in its largest circum- 

 ference. 4040. 



Secotium nubigenum. Stipe white, becoming yellowish, 

 very short: pileus yellowish, smooth, irregularly depressed- 

 globose, an inch or more in diameter, often nearly sessile, 

 collapsing more or less in drying: hymenium yellowish- 

 brown; spores yellowish-brown, oval, smooth and shining. 

 6x8//. 3300. 



Growing on logs of Pinus contorta, Sierra Nevada, 7,000 

 feet. The mode of dehiscence is yet unknown, although it 

 has been several times collected, and in considerable quan- 

 tity, it is alwaj^s found with cortex entire. 



Tulostoma obesum, C. & E. On Rattlesnake Island, 

 Pyramid Lake, Nev., Aug. 3875. 



Much larger and stouter than the specimens originally 

 described, 3 — 5 inches in height: base of the stipe fringed 

 with the remains of the volva: mouth minute, enlarging 

 irregularly. 



