Genus Polytrichum; ‘with fome Emendations. 73 
the back flightly dentated towards the tip... When recent the leaves 
are of a dark glaucous colour, but in a dried ftate they become rit 
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, of a reddifh ftraw-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 oné-eighth of an inch 
long.—The cap/ile is quadrangular, nodding, and a little contraéted 
at the bafe, but not fo much as to form an apophy/is.:) 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. | ly 38 
8. Potytricuum gracile, fol. lanceolatis acutis carinatis denticulato-: 
ferratis erectiufculis, capfula obovata fubangulata obliquata, 
apophyfi deftituta. Taz. 6. Fic. 3. 
Hab. in alpibus Scoticis, Dickfon.—et in Suecia, Swartz. 
_ This is fimple-ftalked, and of aflender appearance; from an inch 
to upwards of two inches in height.—The /eaves are fmall, and re- 
motely placed on the lower part of the ftalk ; but are larger, ere@t, 
and more crowded towards the top : they are of a light green colour, 
fhort, lanceolate, with acute hifpid points, and ferrated with deep 
dents on their edges: the middle nerve is {trong, whitith and den- 
tated on the back, efpecially toward the tip.—The /edunc/é is about 
three inches long, fhining, and of a deep’ orange colour, and arifes 
from the fummit*of the ftalk out of a cylindrical fheath about 
two tenths of an inch in length.—The caf/iz is nearly ovate, and 
obfcurely angulated, without any apparent apophy/is 3 the operculum is 
{mall and conical, ending-in a-{traw-coloured point,—The exterior 
“Vor. IV. Waly? calyptra 
