HANDBOOK OF P.RITISH HEPATICyi*:. 



253 



the underside of the nerve, sometimes 

 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. 



simple and 



174. 



Pallavicinia hibernica, Hook. 



Frond procumbent, dichotomous, perichae- 

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

 perianth oblong-ovate, twice as long as the 

 calyptra. 



Jungermannia hihcrnica, Hook. Br. Jung., 

 t. 78, Supp. t. 4. Dilceua hibejiiica, Dumort. 

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

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

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

 figs. 169, 170. Pai/avicijiia kibcmica, Crtt. a.nd 

 Pears. Exs. No. 143. 



Growing amongst Sphagnum. (Fr. April.) 



In small imbricated patches, from 2 to 4 



