64 HANDBOOK OF BRITISH HEPATICJE. 



mously branched. Leaves slightly adpressed, 

 ovate-oblong, plane or indistinctly decurved 

 at the apex, margin quite entire, lobule 

 minute, plane not decurved, spreading from 

 the stem ; stipules adpressed to the stem, 

 slightly decurrent, obtuse rotundate. 



Porella pinnata, Lindb. Moore Ir. Crypt. 

 619 ; Carr. and Pears. Exs. No. 132. Junger- 

 mannia Cordeana, Hub. Hep. Germ. 291. 

 Madotheca porella, Nees Eur. Leb. 3, 201 ; 

 Cooke Hep. fig. 146. 



On wet stones, trunks, &c. 



var. ft densa. Branches shorter; leaves 

 larger, contiguous and plane, or imbricated, 

 and rather convex, lobule obtuse. Dicks. 

 Linn. Trans. III., t. 20, f. I. 



Stems 2 to 4 inches long, 

 pinnately branched, the forked 

 branches spreading, leaves dis- 

 tantly placed, the lower lobe 

 smallest (fig. 47), pressed to 

 the stem and flat. Stipules 

 rather square. Mouth of the 

 47. perianth with small round 



notches. {Plate 2, jig. 21.} 



Sub-tribe III. PTILIDE&. 



Female flowers either always on the stem 

 or on a lateral branch (never postical), longer 

 or shorter, terminal. Leaves incubous, or 



