— 44 — 



tion. My thanks are due Mrs. Britton for her kind assistance which made it 



possible to make comparisons with type material. (See also Mrs. Britton's 



statements in Bull.-Torr. Club., 1S94, p. 156.) 



Note. The writer discovers that among- undetermined Colorado mosses collected by 

 him in 1896, O. HaHii is abundantly represented. All of that material was, like that from 

 Wyoming, collected on rocks. This adds to the doubt that O. Hallii^^SiS originally col- 

 lected "on trees." 



CURRENT LITERATURE. 



Musci NorvegicE Borealis. Pars prima. J. Hagen. 



This appears in the Tromso Museums Aarsefter Trondhjem, 1899, in 

 German, the descriptions in Latin ; 112 pages. It is not merely a list, being 

 replete with critical notes which show the experienced master in Bryology, 

 ingenuous, painstaking, plain spoken, exact. The descriptions uniformly go 

 into the greatest detail. Quality is here secured with unstinted labor. Most 

 of the descriptions and discussions are of direct value and interest to Ameri- 

 can students. The following species and varieties are described: 



Gyroweisia tenuis compacta Hag., Cynodontiu7n polycarpttvi IcEvifo- 

 lium Hag., Cy7iodontiuin poly car pum scabrius Hag., Oncophorus Wahlen- 

 bergii elo7igatus Hag . Dicranum angustiim fertile Hag., Seligeria 

 tristichoides Kindb., Distic/iiiiin Hageiiii Ryan, Barbula convohtta 

 filiforniis Hag., t^chistidiiim apocarpmn irregulare Hag.. Schistidiuin 

 angusttini Hag., Orthotrichum ciipii latum hiridum Hag., Orthotrichuin 

 7nicrob lepkar e^chim.^., Orthotrichum Zs'/y/Z/z'Schimp., Orthotrichum Groen- 

 landicuvi Berggr., Orthotriclnnn initigatimt Hag., Eucalypta mutica Hag., 

 Webera cruda alpina Hag. 



Finally it is to be noted that the discussions under Orthotrichum and 

 Webera are especially valuable. 



Musci NorvegicE Borealis. Fasciculus secundus. J. Hagen. (=Pars 

 secunda.), pp. 113-240. 



This was issued in 1901 and came into the hands of the writer of this 

 note Feb. 24th, 1902. Considering the large number of new species de- 

 scribed it seems very desirable to determine and record the exact date of its 

 issue. 



This paper is occupied almost exclusively with the genus Bryum proper, 

 of which the author enumerates 108 species and varieties, 26 of them new to 

 Bryology. When we consider that in the first part of this series the, author 

 enumerates 16 species and varieties of Webera, we have nearly 150 species 

 of Bryum in the wider sense, all belonging to northern Norway, a compara- 

 tively small area of the Scandinavian peninsula. Truly this shows a won- 

 derful wealth of Brya ! 



Dr. Hagen proposes some changes in the treatment of the genus Bryum 

 and his discussion of this matter deserves treatment in a separate 

 note; here only the salient points of excellence in the author's treat- 

 ment are mentioned, With the great majority of species are found critical 

 notes discussing their value and affinities. The author's generous communi- 

 cation to his fellow workers of his method of treating and examining spores, 

 of observing leaves and areolation, and his estimate of the relative merits of 



