362 HEPATW/E. 



branches few, postical-lateral, arising from the postical axil of 

 leaf; a cross-section shows 12 by 16 cells in diam., with 40 to 50 

 cortical, all somewhat similar, walls firm, dark ; flexuose, erect or 

 procumbent, rigid and brittle when dry, somewhat ligneous, 

 opaque, rootlets few. Leaves closely imbricate or approximate, 

 subhorizontal or slightly ascending, semi-obliquely inserted, 

 bifarious, subsecund, slightly falcate, succubous, concave, canalicu- 

 late, ovate-acute or oblong-ovate-acute, apex bifid to about y\y, 

 sinus acute, segments acute, unequal, margin incurved, quite 

 entire; texture firm, cells guttulate, rather minute, sinuate, 

 roundish-hexagonal, elongate and larger near the middle base, 

 lumen containing a few nucleate bodies, cell walls very thick, pale 

 golden brown, no trigones. Stipules wanting. Bracts usually a 

 little larger than the leaves, broadly ovate, acute, bifid from j^j to 

 \, sinus acute, segments acute and unequal, margin quite entire. 

 No bracteole. Perianth projecting about f beyond the bracts, 

 terminal, reddish-brown, cylindrical or oblong-obovate, terete 

 below, 5-7-plicate above, mouth contracted, laciniate-ciliate, cilia 

 hyaline, delicate, 2-4 cells long. 



Male plants not seen. 



Dimensions. — Stems 1 to 3 inches long, diam. '2 mm. to "3 mm., 

 with leaves 3* mm. wide ; leaves 1'4 mm. long x 1* mm. broad, seg- 

 ments "1 mm., 1"3 mm. x 1*2 mm., seg. -125 and "15 mm. ; cells 

 •02 mm. X '01 mm., -01 mm., '03 mm. x '0125 mm. ; bracts 1"4 mm. 

 long X ri mm. broad, segment "2 mm., 1 '3 mm. x 1*2 mm., seg. 

 •15 mm. ; perianth 2 25 mm. long x -75 mm. broad, 2* mm. long x 

 "85 mm. broad; cilia '1 mm. long; pistillidia '2 mm. long x 

 •06 mm. broad. 



Hab. — Growing in rather small and loosely entangled tufts in 

 alpine situations. Eare. 



15. Rocks above Loch Avon, Clova, with perianths, Br. 

 Greville ; Braemar, A. Croall ; Ben Mac Dhui, G. Stabler. 17? 



Europe, Danubian Provinces, vide Dr. Spruce. Norway, 

 Kaalaas. 



Obs. — A very distinct species and not likely to be mistaken 

 for any other British one ; the dark colour of the plant with the 



