HEPATIC^ IN HIBERNIA. 



87 



paroicous. Female shoot proceeding from the amphigastrial 

 axilla, almost always short. Colesula triangular, very rarely 

 terete, compressed or none. Antheridia on a proper branch pro- 

 ceeding from the amphigastrial axilla, hardly ever placed in the 

 foliar axillai of the stem itself, paraphyses none, 

 t t Acrogamse. 

 Stem commonly branched by innovations proceeding from 

 beneath the perichjetium, rarely pinnate or dichotomous. Leaves 

 succubous, sometimes conduplicate, entire to broken up into 

 capillary segments. Amphigastria most frequently absent, com- 

 monly small and ovato-subulate, rarely larger and like the leaves, 

 imdivided to broken up into capillary segments. Gamoecium 

 dioicous or paroicous. Pericha^tium apical on the stem itself and 

 its innovations, Colesula terete, commonly five — or sometimes 

 more densely plicate, not unfrequently compressed, very rarely 

 none. Antheridia placed in the highest axils of the stem and 

 innovations, paraphyses present in some, most frequently leaf- 

 shajDed. 



EUEOPEAN GENEEA OF HEPATIC^ NATUEALLY 

 AEEANGED. 



I. MARCHANTIACEJE. 



A. SCHIZOCARP^. 



