— 6— 



eludes that the structure of the vein and the occasional differen- 

 tiation of the line of suture between the vaginant lamina and the 

 apical wing, notably in F. Floridanits, proves Robert Brown's 

 theory to have been correct. His sections and figures include six 

 North American species of F/ss/dens, a.?, follows: bryoides, de- 

 cipiens, tncurvus, Floridaniis, grandi/rons a.r\6. ia.xifolius : also 

 Catharinea angustaia, Polytrichu>nformosum, Potiia cavifolia, 

 Barbula chtoronotis, and Bryo.xiphium Norvegicum. The plates 

 are excellent, and the whole study is eminently satisfactory to all 

 students of this genus, as showing what morphology can do to 

 help us in classification. — E. G. Britton. 



NOTE ON CINCLIDOTUS FONTINALOIDES. 



IN THE month of July, 1869, the writer made a boat voyage 

 around the northeast coast of Lake Superior. On the 27th of 



that month he collected in a brook thirty miles west of 

 Michipicoten. The gatherings were submitted to careful exam- 

 ination by myself, but as many species were found that I had 

 never before seen, and, being without books, I could do nothing 

 with them. In 1871, through Mrs. Roy, of Owen Sound, Ontario, 

 I opened up a correspondence with Prof. James. The specimens 

 found on the rocks in the brook were submitted to him and named 

 Cinclidotus fonitnaloides, but sterile. 



Later I may have submitted them to Austin, and from him 

 got the name Racomitrium aa'ctilarc, or I may have named them 

 so myself ; but at any rate that was the second name. 



Still unsatisfied, I sent part of the original specimen to Dr. 

 Kindberg, who named it Grimmia apocarpa, var. rivularts. 

 Within the last month Mrs. Britton has confirmed the later deter- 

 mination, so that Cinclidotus fontinaloides, as far as the writer's 

 specimens are concerned, has to be eliminated from the North 

 American Y\ox2i.—John Macoiin, Ottawa, Canada, February 



2jd, IQOO. 



[A Note.— A search has been made for the original specimens 

 on which the note in Lesquereux and James' Manual was founded, 

 but they are not to be found in the James collection. Whether 

 they were returned to Mrs. Roy or sent to the Lesquereux herba- 

 rium, remains yet to be discovered. At any rate nothing exists 

 in any collection thus far made to show that Cinclidotus J otitina- 

 loides has been thus far found in America.— E. G. Britton.] 



