2l8 HANDBOOK OP BRITISH HEPATIC^. 



nomitrium revolutum, Carr. and Pears. Exs. 

 No. 217, 218. 



Densely caespitose in black tufts. 



Base stoloniferous, dark brown, brittle, spar- 

 ingly rooting; shoots ascending, simple, inch 

 to I inch long, rigid, innovations from the apex, 

 or axils of upper leaves. Leaves bifarious, imbri- 

 cate, complicate-concave, bidentate, erect, roundish 

 or elliptic-obovate from a rather narrowed base ; 

 smaller and more distant near the base of the 

 stem, gradually enlarging upwards. Lobes equal, 

 acute, cuspidate, with a deep sinus, about one-third. 

 Margin narrowly reflexed. Texture dense, polished, 

 pitch-black. 



In size and emargination of the leaves it is 

 intermediate between TV. emarginata and N. Funckii, 

 but the narrow revolute continuous border will at 

 once distinguish it from these. The leaves of N. 

 emarginata are usually rerlexed at the base, but the 

 lobes are blunter, and plane at the margin. (Plate 

 5, fig- 7/0 



Nardia Funckii, W. and M, Carr. 



Densely caespitose ; stems very short, erect, 

 rigid, fastigiate-innovate; leaves approximate, 

 erectly spreading when moist, erect when 

 dry, subrotund, carinate, concave, acutely 

 emarginate, lobes acute ; involucral leaves 

 much larger ; involucre ovate, lower half 

 connate, acutely bilobed, the segments in- 

 curved : two to four lines. 



