namely SphagnacecB, AndrecEacecB, and BryacecB, including here Archidium. The 

 Bryales fall into the two groups of Acrocarpi and Pleurocarpi. His 135 genera 

 are included under 27 families. 



The special part begins with page 50. The Sphagna are most exhaustively 

 treated. There are diagnostic keys for his six "groups" and for the species under 

 each group. Under Bryacece only the larger families, and the larger genera, have 

 such keys to their respective subdivisions. The chief task of the author is the 

 record, under each species, of its geographic and geognostic occurrence. 



The whole is the work of a lover of Nature, and of a keen observer and untir- 

 ing worker. In his analysis of this moss flora, in part one, the author compares 

 his area with the outlying regions, recording species that persisted since the Ice 

 Age, those that came in from the South, the West, the North, and the East: 

 thus giving an exhaustive view of the epochal movements of these interesting 

 organisms since geological time. 



John M. Holzinger. 



Winona, Minnesota. 



SHORTER NOTES 



All students of lichens will be interested in the article^ by Dr. Bernt Lynge, 

 which starts publication in the last issue of the Nyt Magazin to come to hand. 

 Realizing the great value of accurately determined specimens in the case of 

 Lichens, plants that differ in many cases but slightly, and the difficulty of putting 

 such differences into words. Dr. Lynge has long had in preparation an index of the 

 various published collections. There are considerably more than a hundred 

 known exsiccati that contain Lichen material wholly or in part, and the present 

 work attempts an exhaustive catalogue. This is to be in two parts; the first con- 

 taining a Hst of the exsiccati under the respective authors; the second, an alpha- 

 betic index of all species and varieties. In the present instalment Dr. Lynge 

 makes a beginning of the first part, listing Anzi to Britzelmayr. With each cita- 

 tion is given the complete title of the series, the date, number of specimens, bibli- 

 ographical references, and a complete list with numbers of the material comprised 

 in the work. E. B. C. 



In two of the recent issues of Broteria M. Luisier,^ the veteran bryologist, con- 

 tributes under the title "Fragments de bryologie iberique, " several short notes. 

 These comprise the following: Description, with two figures, of Desmatodon 

 meridionalis n. sp. from South Portugal, a minute plant apparently related to 

 D. cernuus; Note upon the distribution of Triquetrella arapilensis, recording two- 

 additional localities for this species, a representative of a genus previously con- 

 sidered as belonging exclusively to the southern hemisphere; Description, with a 



^ Index Specierum et Varietatiim Licheniim, quae collectionibiis "Lichenes Exsiccati" dis- 

 tributae sunt. B. Lynge, Nyt Magazin for Videnskaberne, Bd. 53: Hefte 3-4 ; i— 112. (ipis)* 



^Fragments de Bryologie Iberique. A. Luisier. Broteria. 13: Fasc. 2, 3. 149-153. 

 (Dec. 191s). 14: Fasc. i. 5-24. (April, 1916.). 



