64 



HANDBOOK OF BRITISH HEPATIC^. 



mous!}^ branched. Leaves slightl}" ad pressed, 

 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 piunata, Lindb. Moore Ir. Crypt. 

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

 uiannia Cordcaua, 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. HI., 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 

 perianth with small round 

 notches. — {Plate 2, fig. 21.) 



47- 



Sub-tribe HI. PTILIDE/E. 



Female flowers either alv^^ays on the stem 

 or on a lateral branch (never postical), longer 

 or shorter, terminal. Leaves incubous, or 



