Genus Polytrichum ; with fame Emendations. 7 1 



little oblique, with a flat operculum pointed in the centre. — The ex- 

 terior calyptra is of a light ferruginous colour, efpecially towards the 

 tip, and is double the length of the inner one. 



5. Polytrichia! convolution^ fol. linearibus involutis apice ferra- 

 tis; fkcitate contortis, capfula cyiindrica erettiufcula. 



P. convolutum Linn.fiL Method, Mufc. 33* /. 1. fi 3. Swartz Prod. 



139; 

 Hab. in India occidental'^ &c* 



Thejlalk is erect, and varies from an inch to about three inches 

 in height. — The leaves are longer and more crowded towards the 

 top of the ftalk: they are (lender, 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, ifluing from 

 the fummit of the ftalk out of a loofe tubular perichvetium about a 

 quarter of an inch long. — The capfule is fomewhat erect, fhort and 

 cylindrical, with a ftrong rim finely dentated. — The exterior calyptra 

 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 (talks, and are fometimes proliferous. 



6. Polytrichum magellanicum, fol. lineari-lanceolatis acutis denti- 

 culato-ferratis, capfula oblonga fub-cylindrica erectiufcula, ca- 

 lyptra fimplici. Tab. 6. Fig. i. 



P. ntagellanicum Linn. Suppl. Plant. 449. „ 



Mab. in Jreto rnagellanico, et in Nova Zeelandia. 



This grows (tiff, erecT, and from two to even fix inches high : 

 the lower part of the Jlalk is naked, but the upper part is fur- 

 rounded. 



