Genus Polytrichum; with fome Emendations. aE 
little oblique, with a flat operculum pointed in the centre.-—The ex- 
terior ca/ypira is of a light ferruginous colour, efpecially towards the 
tip, and is double the length of the inner one. 
5. Potytricnum convolutum, fol. linearibus involutis apice ferra- 
tis; ficcitate contortis, capfula cylindrica ereétiufcula. 
P. convolutum Linn. fil. Method. Mufc. 33. t. 1. fo 3. Swarts Prod. 
139. 
Hab. in India occidentali, 8c. 
The fra/k is ereét, and varies from an incli to about three inches: 
in height.—The /eaves are longer and more crowded towards, the 
top of the ftalk.: they are flender, linear, with their edges finely 
ferrated towards their tips; and in a dried ftate they are of a dark. 
brown colour, with their edges turned in, fo as to appear channelled.. 
—The peduncle is from an inch to an inch and half long, iffuing from 
the fummit of the ftalk out of a loofe tubular perichatium about a 
quarter of an inch long.—The cap/we is fomewhat erect, fhort and 
cylindrical, with a {trong rim finely dentated.—The exterior calypira 
is of a light ferruginous colour, and about two-thirds longer than.” 
the inner one.—The male rofaceous cups are produced upon the 
fummits of feparate ftalks, and are fometimes proliferous. 
6. Potyrricuum magellanicum, fol. lineari-lanceolatis acutis denti-- 
culato-ferratis, capfula oblonga fub-cylindrica erectiufcula,. Ca=- 
lyptra fimplici. Tas. 6. Fic, 1.. 
P. magellanicum Linn. Suppl. Plant. 449: 
Hab. in. freto magellanico, et in Nova Zeelandia. 
This grows ftiff, erect, and from two to even fix inches high :- 
the lower part. of the /fa/k is naked, but the ypper part is fur- 
rounded 
