On Bog Mosses. 157 



f. fusGuni. Sclipr. 



In matted tufts of an ochraceous brown colour ; stems slender 

 dark brown, densely and uniformly ramulose. Divergent branches 

 short, incurved, their leaves short and concave with a rounded, 

 toothed point. Stem leaves small, with a rounded, toothed apex. 



7]. luridum. Hiibener. 



In dense tufts of a dirty green colour above, fuscous below. 

 Branches very densely crowded, all erecto-patent and of equal 

 length; leaves closely imbricated, acuminate strongly involute at 

 points. Stem leaves -large, elongated linear, acutely pointed. 



•&. patulum. Schimper. 



Plants robust, loosely tufted, entirely of a pale green colour. 

 Stem leaves elongated acute, with the cells in the upper third fibril- 

 lose. Branch leaves elongated, patent, laxly incumbent when dry. 



I. ardum. Braithw. 



Stems fragile 1-2 in. high, in very dense yellowish-green 

 cushions. Stem leaves narrowly bordered, with the cells in the 

 upper two-thirds fibrillose ; branches densely placed, short, ascend- 

 ing, with laxly areolate obtuse leaves. 



K. alpinum. Milde. 



In dense snow-white tufts; all the branches erecto-patent, 

 longish. Stem leaves long, fibrillose, with a faint rose tint. 



\. plumosum. Milde. 



Tufts very lax, long and floating, reddish brown, with long lax- 

 leaved branches. Stem leaves very long, toothed ; branch leaves 

 elongated, involute, with a broad 7-8 toothed point. 



Hab. — Heaths and bogs, common. Fr. July. ^, in peat bogs 

 and pine woods. 7, Terrington Carr. (Mr. Spruce) ; Fowlsham 

 Moor, Westmoreland (Mr. Stabler), h, e, ^, Alpine bogs. 1], Ben 

 Lawers (R. B.). ^, grassy shady places in moorlands. Darnholme 

 near Whitby, c, Brandon mountain, Kerry (Dr. Moore), k, Alps 

 (Milde). X, Remschied near Diisseldorf (Doring). 



This most variable species is generally distributed, and found on 

 heaths and in woods, in the plains as well as on the mountains. 

 The stem leaves vary in the amount of threads in the cells, and 

 also in the width of the border, and size of teeth at the apex, (these 

 sometimes becoming broken up into a slight fiinge), but always 

 difi'er from those of S. stridum in being narrowed to a point. 



The leaves on the lower half of the divergent branches, present 

 generally a marked difference in their cells, these in the lower two- 

 thirds of the leaf are large, and have a few large pores, but in the 

 upper third the cells become very small, and have several small 

 pores ; towards the point of these branches, and on all the pendent 

 branches, the leaves become narrowly lanceolate, and the cells are 

 uniformly lax and with equal large pores throughout the extent of 

 the leaf. 



N 2 



