Sa M} '. Men zr e s 's Arrangement of the 



17. Polytrichvm feptentriona/e 9 fol. knceolatis acutis apice obfcure* 

 ferrulatis, capfulis ovatis ere&iufculis, operculo mucronato re- 

 curvato. Tab. 7. Fig. 5. 



P. ramofum Gunner. Fl. Norveg. 8 14. Fl. Dan. tab. 297. 

 V.feptentrionale Swartz in Acl. Stockh. 1795. p. 270. " 

 i£/& /* alpihus Norvegia's, 



This plant is about an inch and half in height, and from a fmall 

 naked ft em fuddenly divides into fhort fliff crowded branches.— The 

 leaves are iliort, narrow, lanceolate, acute, and entire on the edges, 

 except towards their tips, where, with the afliitance of a magnifier! 

 they may be perceived ffightly ferrulated : they are all nearly of the 

 lame fize, and equally difperfed round the branches.-— The peduncles 

 are ftiff, yellowing about half an inch long, arifing from the fum- 

 mits of the branches out of fmall {heathy tubes, which clofely 

 embrace their bafes.— The capfule is ovate and nearly erect : the 

 operculum is conical, ending in a long recurved mucro.— The extev 

 rior cafyptra is of a light ferruginous colour, aad about twice the 

 length cf the inner one. 



This is to be diftinguifhed from P. alphum by being much fmaller 

 in all its parts,— by its leaves being fhorter, more etefk, and nearly 

 entire on their edges,— by its capfules being moftly ereft, and its 

 operculum ending in a long recurved mucro. 



The fhape of the capfule in the plate above quoted from the 

 Flora Danica is not fufficiently accurate, as it does not agree either 

 with the plant or the defcription of it inferted in the fame work. 

 I have therefore given a new figure of it from a fpecimen fent me 

 fome years ago by Dr. Swartz of Stockholm, a learned and indefati- 

 gable member of this Society, to whom I am indebted for this, and 

 many other interefting communications. 



18. Po- 



