34 HANDBOOK OF BRITISH HEPATIC^E. 



margin complicate, lobule convex ; perianth 

 obovate, mouth contracted, somewhat toothed. 

 Jungermannia microscopica, Mack. Fl. Hib. 

 II., 59 ; Taylor Hook. Journ. IV., t. 20. 

 Lejeunia microscopica, Taylor in Gott. Syn. 

 Hep., p. 345; Cooke Hep. fig. 151; Carr. 

 and Pears. Exs. No. 280. Cololejeunia, 

 Spruce. 



Amongst mosses, like a green stain. 



Scarcely visible to the naked eye, pallid green, 

 subpellucid. Stems two to three lines long, slender, 

 flexuous, sparingly branched, here 

 and there emitting short simple 

 pellucid rootlets ; leaves rather 

 distant, flattened, acuminate, 

 ovate - lanceolate, the elevated 

 cells at the margin giving the ap- 

 pearance of serratures (fig. 26) ; 

 perigonial leaves more obtuse at 

 the apex, enclosing in the folds 

 cSt one or two rufescent ovate an- 



thers, perichaetial leaves binate, appressed to the 

 base of cup ; perianth tumid, obovate from a 

 narrow base, ecostate, twice longer than the leaves ; 

 peduncle pellucid ; capsule rounded-ovate, pale 

 brown, quadrifid. 



Lejeunia ealcarea, Lib. 



Thread - like, loosely and divaricately 

 branched; leaves tranversely ovate, concave, 





