HANDBOOK OF BRITISH HEPATICJE. iyi 



nearly round ; in fertile specimens the uppermost 

 are the largest, barren ones the contrary, all of them 

 concave, semi-embracing at the 

 base, occasionally slightly not- 

 ched at the apex (fig. 123). 

 Texture thin and delicate, colour 

 pale yellowish green. Perichae- 

 tial leaves not differing, except 

 that the two uppermost pairs 

 are the largest of all, and more 

 uniformly erect. Perianth 

 lengthened at the base, broadest 

 in the middle, and acuminate 

 at the apex, where it is slightly 

 plicate, mouth contracted, small, 

 minutely toothed. Capsule 

 ovate, deep brown. Elaters 

 bispiral. The perianth is fusiform, with a minute 

 orifice at the acute apex, obtusely biplicate above, 

 with a narrow furrow between the folds. 



Aplozia eordifolia, Hook., Dum. 



Stem erect, branched, leaves incumbent, 

 concave, cordate, entire, embracing the stem, 

 stipules none ; perianth terminal and axillary, 

 fusiform, plicate, compressed frontally, mouth 

 denticulate. 



Jungermannia cordifolia, Hook. Br. Jung. 

 No. 52 ; Eng. Bot. t. 2590 ; Gott. and Rab. 

 Exs. No. 271, 341-344; Carr. and Pears. Exs. 

 No. 27; Cooke Hep. fig. 67. Aplozia cordi- 

 folia, Dum. Hep. Eur. p. 59. 



