2 ON CALIFORNIAN MOSSES. 



under Lieutenant A. W. Whipple. The mosses there gathered by this excellent botanist 

 were enumerated and described by Mr. W. S. Sullivant for the report of the explorations 

 in 1856. Somewhat later, in 1859, a gentleman from Germany, Mr. T. Bauer collected 

 mosses in a tour from San Francisco to the Sierra Nevada, and sent them to Hampe, who 

 published a description of eleven species in a pamphlet prepared in 1860 for the Bot. 

 Zeitung. Recently, a young botanist, Mr. Hy. Bolandcr, formerly of Columbus, Ohio, 

 having taken up his residence at San Francisco, has given particular attention to the 

 study of the California!! mosses, and in less than one year, has collected as many species 

 as all the other collectors together. Mr. Bolander's contribution is rendered particularly 

 interesting to bryological science, not only by the number of species, but by the great 

 care manifested in collecting and preserving fine specimens in a perfect state of maturity, 

 and in such abundance as to render examinations satisfactory, and also noting the time of 

 maturity, the habitat, and all circumstances necessary to arrive at a correct knowledge of 

 the species in all its phases. 



He sent me by mail, almost weekly, examples of species new to science or new for Cali- 

 fornia. Hampe's remarks about the Bryologia of the Sierra Nevada, that this country is 

 still for mosses terra incognita, is apparently applicable to the whole State of California. 

 Nevertheless, the following enumeration of Mr. Bolander's mosses will show, as was 

 already done by that of Dr. Bigelow's collection, that the conclusions of the celebrated 

 German botanist cannot be taken in such a general way as he appears to have done, and 

 that the species are by far not all new. 



SPECIES OF MOSSES COLLECTED BY MR. HY. BO LANDER IN CALIFORNIA (1862 TO 1863). 



1. EPHEMEH.TJM serratum limp. 



In a meadow near Mission-Dolores. March. 



2. ACAULON muticum C. Mull. 

 Same place. March. 



3. PHASCUM cuspidatum Schreb. 



Same place. Var : s piliferum humile Bryol. Eur. On the ground near Oakland, 

 San Francisco. March. 



4. PLEURIDIUM subulatum Bryol. Eur. 



The calyptra has a longer point than the European form, which is the only difference. 

 Wet ditches and dry hills, San Francisco. April. 



5. WEISIA v i r i d u 1 a Brid. 



A very variable species. One of the Californian forms has the capsule somewhat longer 



