CRYPTOGAMIAHEPATIC.E. ill 



guished, even at a distance, by the grey shade of its 

 patches. 



36. ANTHOCEROS. 



1. A. punctatus, leaves frondose, appressed, crisped and crenate, 

 forming circular patches ; fruitstalks with a tubular entire sheath 

 at the base, smooth, green, awlshaped WITH. iii. 10$6 ; SPRENG. 

 Syst. Veg. iv. 236; DILL. Muse. 476. t. 68. f. 1. 



Hob. Corn fields with a peat soil, about Gavington, Ber- 

 wickshire, Mr Thomas Brown. Autumn. 



The leaves form depressed circles about the size of a shilling, 

 and of a fine pellucid grass-green colour, adhering to the 

 soil by radical fibres which pullulate from the whole lower 

 surface. The frond is thickish, fleshy, and gummy when 

 cut or torn. The fruitstalk, in our specimens, is about an 

 inch in length, several arising from the same plant. 

 Sprengel says it is to be found " per omnem terrarum or- 

 bem ;" a remark which may be true, but scarcely warrant- 

 ed by what was known at the period of the publication of 

 his laborious and excellent work. It is now, for the first 

 time, described as a native of Scotland, and the merit of 

 its discovery is due to my young and zealous friend Mr 

 THOMAS BROWN, son of the Rev. Dr BROWN of Langton. 



37. MARCHANTIA. 



1. M. polymorpha, " receptacle of the capsules deeply cut in a 

 stellated manner into about 10 narrow segments, that of the an- 

 thers pedunculated." LIGHTF. Scot. 793; WITH. iii. 1081; 

 HOOK. Scot. ii. 119; Eng. Bot. t. 210; DILL. Muse. t. 76, f. 6. 



and t. f 77, 7- 



Hab. On shady moist rocks, " where the sunbeams seldom 

 come, and where no traveller frequenteth," common ; 

 and sometimes in bogs. 



Frond adherent, forked, plane, ribbed, coriaceous and opaque, 

 margin entire, apex obtuse, under surface downy, upper 

 surface of a grass-green colour, reticulated with minute 

 rhomboidal or lozenge-like scales. SPRENGEL says of this 

 singular moss also, that it is found " per omnem terrarum 

 orbem." 



