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REVIEWS 



Moeller's Distribution of Mosses in Sweden 



Hjalinar Moeller. Lovmossornas Utbredning i Sverige. — V. Polytricha- 

 ceae i. Arkiv for Botanik, utgifvet of K. Svenska Vetenskapsakademieii, 

 Band i6, No. 3.. Stockholm, Almqvist & Wiksells Boktryckeri, A-B, 1919. 



This paper of Herr Moeller's is a most excellent and critical study of the 

 Polytrichaceae of Sweden, excluding Polytrichum. The author, like his Nor- 

 wegian colleague Kaalaas, gives very careful descriptions of the habitats of the 

 various species. 



It is not a manual with descriptions, except for a few. lines describing the 

 varieties, but notes, of a historical, nomenclatorial, etc., character. 



Times of flowering and maturity of capsules are given with great particu- 

 larity, and quite complete lists of Swedish stations. 

 The species treated are: 



Catharinaea tenella Rohl 



" angustata Brid. 



undulata ScU. 



wiwor (Hedw.) W. & M. 

 " Haussknechtii (Jur. & Milde) Broth. 

 Psilopilum laevigatum (Wahlenb.) Lindb. 

 Oligolrichum incurvum (Huds.) Lindb. 

 Pogonatum polytrichoides (L.) Brockm. 



" " longisetum (Hanipe)^ 



" nanum (Weis)^ 

 " " minimum (Crome)^ 



" capillare (Mx.) Brid. 

 " iirnigerum (L.) Beau v. 

 " " humile (Wahlenb.) Brid. 



" " subintegrifolium (Arn. & Jens.)^ 



As these are mostly common to North America, this paper is of equal in- 

 terest here. Catharinaea crispa James does not occur in Sweden, probably 

 because it is too cold. The frequency and distribution of the species is very 

 similar to that of the same species over here. A couple of the Arctic species 

 occur only in the Sarek Mts. in Lul Lappniark, where they were collected by 

 Arnell & Jensen on that joyous expedition. 



This is No. 5 of the series, and it would be of much interest to see the former 

 as well as the future numbers. 



A. LORENZ 



Hartford, Conn. 



^Evidently new combinations by Moeller, although not so stated in the incomplete citations. 

 — Editor. 



