Genus Polytrichum ; -with feme Emendations, 73 



the back (lightly dentated towards the tip. When recent the leaves 

 are of a dark glaucous colour, but in a dried ftate they become ri- 

 gid, and of a dark brown colour, with their edges curled in fo as to 

 make them appear round and channelled.— The peduncle is from 

 two to four inches long, ofareddifh draw-colour at the bottom, 

 but much lighter towards the top : it arifes from the top of the 

 ftalk, out of a clofe cylindrical fheath about one-eighth of an inch 

 long. — The capfule is quadrangular, nodding, and a little contracted 

 at the bafe, but not fo much as to form an apophysis ; the operculum 

 is conical : the rim has about fixty-four minute dents. — The exte- 

 rior calyptra is ftraw-coloured, of a pointed conical figure, and about 

 a third longer than the inner one, which is fmooth and of the fame 

 colour. 



r 



8. Polytrichum gracile, fol. lanceolatis acutis carinatis denticulato- 



ferratis erectiufculis, capfula obovata fubangulata obliquata, 



apophyfi. deflituta. Tab. 6. Fig. 5. 



Hab. in alpibus Scot iris, Dickfon. — et in Sued a, Swartz. 



This is fimple-ftalked, and of a {lender appearance, from an inch 

 to upwards of two inches in height. — The leaves are fmall, and re- 

 motely placed on the lower part of the ftalk ; but are larger, erect:, 

 and more crowded towards the top : they are of a light green colour, 

 fhort, lanceolate, with acute hifp id points, and ferrated with deep 

 dents on their edges : the middle nerve is ftrong, whitiih and den- 

 -tated on the back, efpecially toward the tip. — The peduncle is about 

 three inches long, mining, and of a deep orange colour, and arifes 

 from the fummit pf the ftalk out of -a cylindrical fheath about 

 two tenths of an inch in length,— The capfule is nearly ovate, and 

 obfeurely angniated, without any apparent apopbyfu ; the operculum is 

 .fmall and conical, ending in a. ftraw-coloured point.— -The exterior 

 Vol. IV. L cefyptr* 



