310 HEPATICJE. 



very indistinct. No stipules. Bracts larger than the leaves, 

 repand or appressed, subrotund, trifid, the third segment smaller 

 and antical, sinus acute or obtuse, divided to about \, segments 

 acute. No bracteole. Sub-bracts with a third basal antical 

 tooth. Perianth terminal, projecting about \ or barely beyond 

 the bracts, composed of a single layer of cells, about 30 round the 

 middle, turbinate or pyriform, terete, smooth or slightly folded 

 near the apex, mouth contracted, small, ciliolate, fringed with 15 

 to 20 cilia composed of 1 or 2 elongated cells, incurved. Calyptra 

 very delicate. Capsule oval. Spores and elaters deep reddish- 

 brown. Perigonial stems small, bracts small, crowded, imbricate, 

 more erect, ventricose, bifid with a third antical, basal segment, 

 monandrous, antheridia oval. 



Fruits April, May. 



Dimensions. — Stems J to ^ inch long, diam. "1 mm, to '15 mm., 

 with extended leaves 1- mm. to 1*25 mm. wide ; leaves '8 mm. long 

 X 75 mm. broad, segments '2 mm., "8 mm. x ■6mm.,seg. "2 mm., 

 '7 mm. X "45 mm., seg. '2 mm., '65 mm. x "5 mm., seg. "2 mm., 

 "5 mm. x '4 mm., seg. "2 mm., "45 mm. x "3 mm., seg. '1 mm.; 

 cells "06 ram. x '03 mm., "05 mm. x *035 mm., '04 mm. x '03 mm., 

 •035 mm. x '03 mm., walls '0075 mm. ; sub-bracts "8 mm. long x 

 '75 mm. broad, seg. "2 mm., '07 mm. x '06 mm., seg. '2 mm. ; 

 bracts '95 mm. long x 9 mm. broad, seg. '25 mm. ; perianth 

 1*75 mm. long x '5 mm. broad upper half, 2* mm. long x "6 mm. 

 broad upper half; pedicel 1* mm. long x '01 mm. diam. ; capsule 

 '5 mm. long x '35 mm. broad; antheridia ■13mm. long x "1 mm. 

 broad. 



Hab. — Growing on wet or damp shaley banks or rocks, chiefly 

 magnesian limestone or chalk. Somewhat common. 



1. Near Hayle Causeway, and near Lelant Ferry, Cornwall, 

 W. Curunw. 2, 3. Atford, Kent, E. M. Holmes. 4. Bedminster, 

 E. li. Keml. 5. Banks of drain, one mile from Arley, Stafford- 

 shire, J. E. Baf/valJ. 7. Bangor, Carnarvonshire, G. E. Hunt. 



8. Monsal Dale, Ashwood Dale, Derbyshire, G. A. Holt. 



9. Cotterill Clougli, W. Wilson ; Oversley Fold Wood, Hand- 

 - forth Capf. P. G. Cniilijfe- Marple, Cheshire, C. J. Wild-, South- 



