218 H E P A T I C JG. [ Targionia. 



ceding authors. We have characterized the more common ap- 

 pearance of the plant, the extremes of whose varieties have 

 been described as two species by other Botanists ; that with 

 the least divided margin, arid the largest in size, is A. major of 

 Smith, and the smaller and more deeply divided one, A. punc- 

 tatus, Smith. All, however, remark that the fructification is 

 precisely similar, and what is very remarkable, both Smith and 

 Weber assert that the two plants are frequently found growing 

 intermixed. We fear, too, that the A. multifidus of Dickson, 

 cannot be considered as belonging to this genus. Dillenius 

 does not figure the fructification ; nor does Mr. Dickson, who 

 is the authority for its being considered of British origin, take 

 any notice of it : Smith has wholly omitted it in the English 

 Botany, and whether we consider the descriptions of Dickson 

 and Dillenius, or the figure of the latter, we have little hesita- 

 tion in supposing that plant to be the Jungermannia multifida. 



IV. TARGIONIA. 



Common receptacle of the Fruit none ; Perianth globose, terminal, 

 arising from the underside of the frond, two-valved ; Capsule 

 globose, included, opening irregularly, and filled with seeds 

 and spiral filaments. 



1. T. hypophylla. 



Targionia hypophylla. .Linn. Sp. PL p. 1603. Engl. Bot. t. 287. 

 Schwaegr. Prodr. Hepat. t. 35. Weber, Prodr. Hepat. p. 108 Dill 

 Muse. t. 78. f. 9. Hook. Fl Scot. P. II. p. 119. 



HAB. Banks in rather moist, but exposed situations. 



England and Scotland ; rare. 



Fronds forming large patches, imbricated, oblongo-obovate, 

 plane, between coriaceous and fleshy, the margins entire, of 

 a very deep green colour, dark purplish at the margin, not 

 obviously reticulated, but furnished with numerous oval pores 

 on the upper surface, underneath only is there the appearance 

 of a midrib, which is prominent and covered with numerous 

 fibrous radicles, on each side of which are many purple, trans- 

 versely oblong, membranous scales, as in Marchantia. 



Immediately beneath the extremity, or the under side of 

 the frond, is a solitary Perianth or Calyx, globose, of a deep 



