174 



HANDBOOK OF BRITISH HEPATIC^. 



Growin 

 Stems about 



g in rather dense pale -green tufts. 



^ inch long, ascending, thread-like, 

 waved, and simple, attached 

 by white radicles. Leaves 

 distantly and bifariously 

 placed, in barren shoots 

 smallest at the base and ex- 

 tremity, in fertile largest to- 

 wards the calyx, orbicular, 

 a little concave and de- 

 current, mostly horizontal, 

 spreading, sometimes to- 

 wards the apex, erect (fig. 

 127), pale green. Perichsetial 

 leaves more ovate, always 

 larger. Calyx oblong, in- 

 clining to obovate, without angles, cut at the apex 

 into four large acute teeth (fig. 128). Capsule 

 spherical, brown, shining. Elaters short, bispiral. 



127. 



128. 



Aplozia riparia, Tayi, Bum. 



Rooting-, leaves obovate, obtuse or subemar- 

 ginate, perichaetial saccate, spreading, squar- 

 rose. Perianth pear-shaped, plicate at the apex, 

 compressed frontally, mouth contracted, den- 

 ticulate. 



J^iuigernuinnia\riparia,T?iy\. Trans. Bot. Soc. 

 Edin. II., 43 ; Gott. and Rab. Exs. No. 428 ; 

 Cooke Hep. fig. 69. Aplozia riparia, Dum. Hep. 

 Eur. p. 63. 



var. niitior, Carr. and Pears. Exs. No. 168, 

 169. 



