HANDBOOK OF BRITISH HEPATIC^. 159 



Plagiochila interrupta, N., Dum. 



Stem horizontally branched, leaves imbri- 

 cate, oval, repand, obtuse, quite entire, margin 

 plane; perianth terminal, oblong, mouth 

 repand, crenulate. 



Jungermannia interrupta, Nees Leb. I., 165. 

 Plagiochila interrupta, Dumrt. Hep. Eur. p. 44; 

 Gott. and Rab. Exs. No. 48, 136, 516; Cooke 

 Hep. f. 35 ; Carr. and Pears. Exs. No. 86 ; 

 Carr. Br. Hep. p. 52, t. 3, f. n. 



In mountain woods, on dry shady rocks. 



var. pyrenaica, Spruce Hep. Pyr. No. 9. 

 Pedinophyllum pyrenaicum, Spr. Trans. Bot. 

 Edin. III., 200. Barren stems humifuse,serpen- 

 tine-flexuous, horizontally branched ; leaves 

 ovate-oblong, obliquely truncate, two, three, 

 or four dentate; perianth obovate, mouth 

 acutely dentate. 



Tufts broad, depressed, attached to the surface 

 of rocks. Stems creeping, flexuous, simple or 

 irregularly branched, olive-brown, purplish near the 

 base, brittle when dry. Leaves 

 elliptic, ovate, or subquadrate, 

 distichous, alternate, horizontally 

 imbricate; apex rounded and ob- 

 tuse, retuse, or emarginate, dorsal 

 margin scarcely decurrent (fig. 

 113). Amphigastria usual on the 

 barren shoots, minute, 1-3 partite, segments subu- 

 late. Inflorescence autoicous. Fertile shoots rare. 



