NOTES ON CALIFORNIAN BRYOPHYTES. 51 



Dicranella Howeif'Ren & Card. {Revue Br-yologique, 1893, 

 p. 30). On moist banks, Mt. Tamalpais and various other 

 parts of Marin Co.; Berkeley; Napa Co., Mr. W. L. Jepson. 



Dicranum Howelli, Ren. & Card. On shaded stones, 

 Shasta Springs. Determination based on description and 

 figures published by the authors in the Botanical Gazette. 



Dicranum strictum, Schleich. On logs, Sisson and Shasta 

 Springs. 



Fissidens grandifrons, Brid. On wet rocks, Mt. Tamal- 

 pais; on stones in river, Sisson and Shasta Springs. 



Pottia Starkeana (Hedw.) C. Muell. University Grounds, 

 Berkeley. 



Tortilla Bolanderi (Lesq.) Specimens collected at Berke- 

 ley and in Marin Co., apparently referable to this species 

 differ from the Manual description in that the costa of the 

 leaf usually vanishes at the rounded apex. 



Tortilla muralis (L.) Hedw. On stones, Berkeley. 



Scouleria marginata, E. G. Britton. On rocks just above 

 the water, Sacramento River, Sims, Shasta Co. Our speci- 

 men of No. 202, Musci Leibergiani, contains this species 

 together with S. aqiiatica. 



Grimmia apocarpa (L.) Hedw. On rocks by Sacramento 

 River at Shasta Springs, together with the variety rivularis 

 (Brid.) W. M. The typical form also in the Dixey Mts., 

 Lassen Co., Baker & Nutting. 



Grimmia lieterosticha (Hedw.) C. Muell. 'Common on rocks, 

 Shasta Springs. 



Grimmia Nevii, C. Muell. On rocks near the water-line 

 of Sacramento River, Shasta Springs. Differs from speci- 

 men collected by Nevius (in the Herbarium of Columbia 

 College) in scarcely anything but darker color and little 

 larger and longer capsule. 



Ptychomitrium Gardneri, Lesq. On stones, " Wildcat 

 Canon," near Berkeley. 



Orthotrichum consimile, Mitt. On trees, Olema. 



