N° 2 23° ANNÉE co _ 1896 
REVUE BRYOLOGIQUE 
PARAISSANT TOUS LES DEUX Mois 
Les Manuscrits doivent être écrits en français, en latin ou en anglais 
Sommaire du n° 2 
New or less known species of acrocarpous mosses from North America and 
Europe. KiINpRERG. — Pottia Ryani Sp. nov. Pariserr.—L'Orthotrichum . 
anomalum et ses formes affines. VenTurI. — Notes sur la flore bryolo- 
gique du Mont-Dore (suite). Tnérior. — Contributions à la flore bryolo- 
gique de l'Istrie. Kerx. — Etudes sur le péristome, 9° article. PHILIBERT. 
— Bibliographie. — Nouvelles. É 
New or less known species of acrocarpous 
mosses from North America and Europe 
4. Dicranum angustum Lindberg. 
Allied to Bonjeani De Not.—Leaves entire, narrower, not 
undulate and less spreading, often nearly straight ; cells 
generally not porose ; costa percurrent ; tufts yellowish 
green. 
In bogs. Eur. in northern districts. Norway ! Finland : 
Brotherus. Sweden (not rare in Lapland) : E. Nyman. 
9, Dicranum algidum Kindb. n. sp. 
Confounded with D. spadiceum Zett. (D. neglectum 
Jur.), which differs in the convolute leaves. Leaves chan- 
nelled, entire, nearly straight and suberect, only the upper 
ones flexuous, narrower than in D. fuscescens ; angular 
cells nearly uniform and dilated ; other cells very porose, 
mostly long; costa very narrower, nearly smooth at back 
or slightly rough in the excurrent part. Tufts soft and 
silky, green or dark green, nearly eradiculose. Capsules 
not found. 
On rocks in the alpine region. Amer. Canada, Rocky 
mountains 2700 above the sea: Macoun. Eur. Sweden 
(Lapland) and Norway (Lille Elvedal) : E. Nyman. 
3. Drummondia canadensis Kindb. n. sp. D. clavellata 
var. canadensis Kindb. Cat. Canad. Musci. 
Leaves suboblong or broadly ovate-lanceolate, generally 
subobtuse, channelled and distinctly involute at the bor- 
dérs all around ; cells and costa as in D. clavellata. Peri- 
 chetial leaves larger, broader and more obtuse ; nearly all 
cells lax and long rectangular. Capsule globose, a little 
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