NARDIA. 369 



with a purple or claret tinge. Stems simple or branched, 

 innovant, suberect, laterally compressed, cortical cells large, 

 hyaline, 35 to 50, inner very small, densely crowded, 20 to 25 

 in diam. ; radiculose, rootlets few, white. Leaves closely imbri- 

 cate, erect, horizontally inserted, decurrent, appressed to stem 

 laterally, plane or slightly concave, reniform or subrotund, 

 entire ; texture pellucid, thin, cells medium size, roundish- 

 quadrate, walls thin, firm, reddish, lumen with few oil corpuscles, 

 trigones distinct. Stipules small, triangular, irregular, dentate, 

 rarely subulate. Bracts similar to the leaves, only larger and 

 more distinctly reniform. Bracteole ovate, irregular. Perianth 

 immersed in the bracts, delicate, conoid, lower portion adnate 

 to the innermost bracts, mouth twisted, dentate, teeth small, few. 

 Capsule oval. Sj)ores brown. Elaters bispiral, brown. 



Andrcecia terminal, 2-3 pairs of bracts, but little different 

 from the stem leaves, slightly ventricose at the base ; antheridia 

 large, oval, 2-3 in each bract. 



Fruits April, May. 



Dimensions. — Stems J to 2 inches long, "3 mm. diam., with 

 leaves 2' mm. wide, leaves r4 mm. x TS mm., 1'5 mm. x 2*0, 

 1-25 mm. x 175 mm. ; cells '05 mm. x 03 mm., "035 mm. x -03, 

 •03 X '04 mm., 03 mm. x '03 mm. ; stipules "6 mm. x -3 mm., 

 •55 X "2 ; perigonial bracts 1'4 mm. x I'S mm., 1^3xl'75 mm.; 

 antheridia '225 mm. x "2 mm. 



Hab. — On wet rocks and stones by or in alpine or subalpine 

 rivulets. Somewhat rare. 



1. Dartmoor, Devonshire, E. M. Holmes. 7. Glyder Vawr. 

 Carnarvonshire, JV. Wilmu, G. A. Holt, W. H. P. Snowdon, 

 Carnarvonshire, Dr. Carnngton ; Pass of Llanberis, Carnarvon- 

 shire, W. H. P. ; Cader Idris, Merionethshire, W. H. P. 9. Staley 

 Brushes, Cheshire, G. A. Holt; Carr Meadows, Derbyshire, 

 G. A. Holt; Kinder Scout, Derbyshire, Whitehead & Holt. 

 10. Near Todmorden, /. Noicell, G. A. Holt; Ingleboro, Br. Car- 

 rington ; Blaeberry Gill, M. B. Slater ; Falling Foss, Little Beck, 

 North Yorks., M. B. Slater ; Cleveland, W. Mudd. 12. Little 

 Langdale ; Oxendale, Great Langdale, Westmorland, G. Stabler; 



