18 



ON CALIFORNIAN MOSSES. 



* Timmia Austriaca Hedw. and Bryum Ludwigii Spr. are new discoveries for our Bryologia. They were collected in 

 1862, on the Rocky Mountains near Pike's Peak by Mr. E. Hall. 



t Bryum Lescurii Sul., the only Eastern North American species of this genus, is so nearly related to Bryum carneum 

 L., that it might be considered by some bryologists as an American variety of it. 



J Amllyodon dealbatus P. B. In the Eocky Mountains by Drummond. It was found also near Milwaukie (1862), by 

 Mr. L A. Lapham and myself. 



I Physcomilrium tetragonum Fiirn. was collected in very fine specimens by Mr. E. Hall in the plains of the Platte 

 Eiver. 



