8o Mr. Menzies'j Arrangement of the 



are from an inch to an inch and half in length : they are reddifh, 

 (lightly twifted, and generally terminate the lower branches, each aris- 

 ing out of a cylindrical tube, about two tenths of an inch long.— The 

 capfule is fomewhat erecl, and nearly cylindrical, having a ftrong 

 annulated rim, fringed with a regular row of reddifti dents: the 

 operculum is long and fubulate.— The exterior woolly calyptra is fer- 

 ruginous, and about double the length of the inner one. 



The only plant which this refembles is P. abides, and I ftrongly 

 fufpeft that they have been hitherto confounded together, bot'hby 

 Hudfon and Lightfoot, under the name of P. nanum. It is un- 

 doubtedly a very diftinft fpecies from P. aloides of Hedwig, not only 

 by its being larger in all its parts, and generally branched', but alfo 

 by its leaves being ferrated their whole length, and dentated on 

 their back along the courfe of the middle nerve. 



15. Polytrichia dentatum, fol. lanceolatis acutis aculeato-dentatis 

 capfulis fubcylindricis erectis. Tab, 7. Fig. 4. 



Hab. in ora occidental; America Septentrionalis. 



It is from an inch to two inches high, and generally divided into 

 three or four flender branches.— The leaves are ft iff, lanceolate 

 acute, and ftrongly dentated on the edges with (harp whitiih dents ; 

 their colour is a dark green when recent, but a reddifh brown when 

 dried ; the middle nerve is elevated on the back of the leaf, and 

 marked with a few dents near the tip.— The peduncles are generally 

 two or three in number, of a dark reddifh colour, and grow to an 

 inch or an inch and half long : they arife from the fummits of the 

 branches out of cylindrical tubes which furround about two tenths 

 of an inch of the bafe of each.— The capfule is fomewhat cylindrical 

 andereft; the rim is ftrong and fringed with minute dents: the 

 operculum is flat, with a fmall point in the centre.— The exterior 



calyptra 



