HANDBOOK OF BRITISH HEPATIC^. 



253 



the underside of the nerve, sometimes simple and 

 sometimes branched, which 

 at length detach themselves 

 and become new plants. 

 Perigonial scales numerous 

 on each side the nerve, ovate, 

 and toothed. Calyx double, 

 the exterior shortest, lacini- 

 ate at the margin, the in- 

 terior more delicate, three 

 or four times as long as the 

 outer, a little plicate and 

 toothed at the mouth, torn 

 on one side. Capsule ob- 

 long - ovate, pale brown. 

 Elaters bispiral. 



174. 



Pallavicinia hibernica, Hook. 



Frond procumbent, dichotomous, perichae- 

 tium urn-shaped (urceolate), torn, dentate, 

 perianth oblong-ovate, twice as long as the 

 calyptra. 



Jungermannia hibernica, Hook. Br. Jung., 

 t. 78, Supp. t. 4. Dilccna hibernica, Dumort. 

 Hep. Eur. 137. Mocrckia hibernica, Gott. and 

 Rab. Exs. 295, 163, 334, 335 ; Carr. Trans. 

 Bot. Soc. Edin. VII., p. 443 ; Cooke Hep. 

 figs. 169, 170. Pallavicinia hibernica, Carr. and 

 Pears. Exs. No. 143. 



Growing amongst Sphagnum. (Fr. April.) 



In small imbricated patches, from 2 to 4 



