232 HEPATIC^. 



brown. Stems simple or slightly branched ; leaves regular, sub- 

 transversely inserted, distant to approximate, deeply divided into two 

 lobes, margin entire or rarely minutely and distantly denticulate, 

 aniical lobe about ^rd smaller, reniform, arched, decurrent, incum- 

 bent, convex, postical lobe subrotund, a little reflexed ; cells rather 

 large, sometimes elongate, hexagonal, walls thin. Bracts similar 

 to the leaves. Perianth obovate, mouth wide, entire, rarely 

 minutely denticulate ; spores smooth, pale brown ; elaters reddish- 

 brown. Male stems somewhat similar to others ; perigonial 

 bracts imbricate, ventricose, lobes more equal. 



Fruits May, June. 



Dimensions. — Stems 2 to 4 inches long, -2 mm. to -4 mm. 

 diam., with leaves 2-5 mm. to 3-5 mm. broad ; leaves, antical 

 lobe "9 mm. x '9 mm., 7 mm. x 7 mm., "4 mm. x '6 mm., postical 

 1-9 mm. X 2'2 mm., 1-9 mm. x 175 mm., I'S mm. x 1-25 mm. ; 

 cells '05 mm. x '03 mm., '04 mm. x "035 mm. ; perianth 3*5 mm. 

 X 1-75 mm., 1*5 mm. x 1* mm. ; valves of capsule 1'4 mm. 

 X '65 mm. ; spores "02 mm. ; elaters "08 mm. long x -01 mm. 

 broad. 



Hab. — Grrows on wet rocks and in swampy places in subalpine 

 and alpine districts. Kare. 



7. Clogwyn du Arddu, Snowdon, Carnarvonshire, G. A. Holt, 

 1883. Nant Francon, Carnarvonshire, Br. Carrington & W. H. P., 

 1886. 10. Bog, south of Ingleboro', Yorks, Dr. Carrington, 1857. 

 15. Ben Mac Dhui, A. Croall, W. West, T. Rogers. Ben Lawers, 

 G. A. Holt, IF. West. 16. Loch Rannoch, Br. Carrington. 

 Moidart, West Inverness, S. M. Macvicar. 



I. Knockavoila, Br. Taylor. Lough Bray, Br. B. Moore. Near 

 the Hunting Tower, Cromaglown, Br. B. Moore. Connor Hill, 

 Co. Kerry, Br. B. Moore. 



Found on the Continent. 



Obs. — A few fine teeth are to be observed on the leaves and 

 at the mouth of the perianth of some specimens when highly 

 magnified. The only species with which 8. idiginosa can be con- 

 founded are 8. mididata and S. irrigiia, and from the former it 

 may be distinguished bj' its very reniform antical lobe, which 



