473 ( 11 ) 



that we are now better able to study and compare Dr. Rusby's 

 specimens. 



In 1893 we received a much larger collection of mosses than 

 Dr. Rusby's, made by Mr. Pierre Jay in northern Bolivia, also 

 from the vicinity of La Paz and Sorata. I again wrote to M. Besch- 

 erelle, offering to send him a complete set if he would name 

 them. He replied that he was so occupied with his studies of the 

 mosses of Japan that he found it impossible to undertake it and 

 that it was a thankless task acting as secretary for some one else. 

 I might, perhaps, have been strongly tempted to take the same 

 stand had there not been twelve pages skipped in the reprints of 

 Dr. Rusby's enumeration and held in reserve for this list of 

 mosses. Just as we are going to press I have received a pos- 

 tal card from M. Emile Levier, inquiring for the Bang collection 

 of Bolivian mosses and telling me that Dr. Carl Muller is printing 

 in Florence a Bryologia Boliviana. As my manuscript is completed 

 and the priority of Schimper's names from Mandon's collections is 

 maintained throughout, we think it best to publish our enumera- 

 tion independently. 



This summer I have also commenced wrapping and sorting 

 Mr. Jay's collections and have found several of Dr. Rusby's new 

 species in fruit, which had previously only been collected sterile, 

 so that the work promises to be of great interest, but will take a 

 good deal of time to accomplish with the limited collection at my 

 disposal and the pressure of other duties. However, it seems best 

 to publish the list of Dr. Rusby's collection as it stands, first with 

 such determinations and descriptions as I now know to be correct, 

 and to modify and amend this list subsequently as I find time to 

 study and compare the fine collections made by Mr. Jay. 



The sequence of genera followed is nearly that given by Mitten 

 in his Musci Austro-Americani (Journ. Linn, Soc. 12: 12-25. 

 1869). Thirty-nine genera and ninety-six species are enumerated 

 in this collection of which forty-two are new or previously unde- 

 scribed. Six mosses, as many hepatics, four lichens and a io^N 

 algae and fungi were also collected in Bolivia by A. M. Bang and 

 enumerated by Dr. Rusby (Mem. Torr. Bot. Club, 4: 273). 

 These were named by Mr. Wright at Kew, but the Spliagmims have 

 since been examined and corrected by Dr. Warnstorf from speci- 

 mens preserved in the Boissier Herbarium at Geneva. 



