48 HEPATIC^. 



antical, oval, very convex, free margin slightly involute or 

 adpressed to the antical lobe. Texture very pellucid, and when 

 dry shining ; cells smallish, 4-, 5-, and 6-angled, lumen but slightly 

 chlorophyllose, walls somewhat thick, trigones present. Stipules 

 smaller than the postical lobes of the leaves, 2 to 3 times as wide 

 as the stem, very convex, subrotund, bifid to nearly the middle, 

 sinus more or less broad and obtuse, segments somewhat obtuse. 

 Female flowers on short lateral branches. Bracts unequally 

 bilobed, antical lobe oval, narrow at the base, apex sub-acute or 

 obtuse, postical lobe 4 times smaller than the antical, oval-lanceo- 

 late ; bracteole oval, bifid to ^, sinus narrow, sub-acute, segments 

 acute. Perianth projecting slightly beyond the bracts, pyriform- 

 clavate, terete below, above 5-plicate, wings prominent, very acute, 

 complanate, upper margin slightly crenulate. Calyptra obovate, 

 large, composed of somewhat large and irregular-shaped cells. 

 Androtcia on short lateral branches ; perigonial bracts few 2-4 

 pairs, closely imbricate, erect turgid, bifid, antical lobe broadly 

 ovate, postical somewhat similar but rather smaller; antheridia 

 two, oval-globose. 



Dimensions. — Stem about ^ an inch long, '075 mm. in 

 diameter, with leaves '8 mm. wide ; leaves, antical lobe '5 mm. x 

 •375 mm., postical '2 mm. x '15 mm., antical "45 mm. x "35 mm., 

 postical '225 mm. x '175 mm. ; cells '03 mm. x '025 mm., '025 mm. 

 X *025 mm. ; stipules "19 mm. x '16 mm. ; segments '075 mm., 

 •2 mm. X '185 mm., seg. '08 mm. ; bracts, antical lobe '4 mm x 

 •225 mm., postical '2 mm. x -1 mm. ; bracteole '4 mm. x "225 mm., 

 seg. -11 mm.; perianth -85 mm. x "45 mm.; capsule "275 mm. 

 diam. ; perigonial bracts, antical lobe '3 mm. x '2 mm., postical 

 •275 mm. x -175 mm. ; antheridia "l mm. x "075 mm. 



Hab. — On rocks, stones, and trees in shaded places. Eare. 

 7. Arthog, Merionethshire, Dr. Carrington. 10. Saltersgate, 

 Yorks, S. Anderson. 12. Brown Ghyll, G. Stabler and W. H. F. 

 13. New Gralloway, /. McA?idrew. 16. I. Killarney, W. Wilson. 

 Griena and Tore Cascade, Dr. Carrinr/ton, Prof. lAndherg, G. A. 

 Holt, &c. Conner Hill, Dingle Bay, Prof. Lindberg, and other 

 stations in the South of Ireland. 



