148 HEPATIC^. 



12-14, large, pellucid, interior much smaller, subopaque. Leaves 

 small, subimbricate — in the sterile plant often distant — subascend- 

 ing, rhomboid-rotund, antically decurrent, bifid to about ^, sinus 

 obtuse, rarely lunate, segments connivent, acute or subacuminate ; 

 cells of moderate size, leptodermous, pellucid, slightly chloro- 

 phyllose, quadrate-hexagonal, walls moderately thick, no trigones 

 or thickened angles. Stipules wanting. Inflorescence cladocarpous. 

 ? terminal on very short postical branches. Bracts usually about 

 3 pairs, tristichous, the innermost considerably larger than the 

 leaves, delicate, oblong-rotund, bifid to the third, rarely trifid or 

 twice bifid, segments acutate, entire ; bracteole somewhat similar, 

 often connate with the bracts. Perianth linear-fusiform, when young 

 triplicate, when mature only towards the apex trigonous, mouth 

 subconstricted, denticulate or setulose (setse 1 or 2 cells long only), 

 carnose, towards the base composed of 3 layers of cells, in the 

 middle 2 and near the apex 1. Calyptra oval-globose, carnose, 

 almost the whole length composed of 3 layers of cells. Capsule 

 oblong- cylindrical, on a somewhat short pedicel. Spores of a 

 beautiful cinnamon colour, smooth. Elaters bispiral, slightly 

 darker in colour than the spores. Androecia on short postical 

 branches, perigonial bracts smaller than the leaves, oval, to about 

 a third bifid, canaliculate-concave ; antheridia solitary, oval, shortty 

 stipitate. 



Dimensions. — Stems |- to 1 inch long, "l mm. in diam., with 

 leaves •5-'8 mm. wide ; leaves "3 mm. x '25 mm.,- 3 mm. x '3 mm., 

 •3 mm. X 4 mm. sinus -175 mm.; cells '04 mm. x "04 mm., "04 mm. 

 '03 mm., '035 mm. x -04 mm., "0275 mm. x '04 mm., "035 mm. x 

 X -03 mm. ; bracts "7 mm x -6 mm. segments. '3 mm., '8 x "65 mm., 

 seg. '2 mm., '9 mm. x "7 mm., seg. "3 mm., 5 mm. x "4 mm. seg. 

 "2 mm.; bracteole "7 mm. x b mm. seg., 2 mm., '5 mm. x '3 mm., seg., 

 •15 mm. ; perianth 1'25 mm. x '4 mm., 1*25 mm. x -Gmm., 2'1 mm. 

 X '7 mm. ; teeth of the perianth "075 mm. long; pistillidia •2mm. 

 X '05 mm.; capsule '45 mm. x -2 mm. ; spores "0125 mm. ; elaters 

 •15 mm. X '015 mm.; perigonial bracts ^225 mm. x -125 mm., seg. 

 •075 mm. ; antheridia •ll mm. x ^09 mm. 



Hab. — On shady heathy banks, chiefly in woods and on rotting 

 trunks, m(U*e rarely on sandstone rocks, often fruiting luxuriantly. 



