2o^ CRYPtOGAMIA MUSCI. 



drical, but widefl: at the top. It has no ape^ 

 phyfis- 

 The operculum is reddifli, almoft fiat, and pointed 

 in the centre. Thefe charadters are fufficient to 

 render it a dlftinft fpecies from the preceding. 

 The calyptra is double, as in the other fpecies. 

 Hence it appears that the two-fold calyptra af- 

 fords a new and excellent chara<5ler of the ge- 

 nus, hitherto unnoticed by authors. 



piaHim ^. POLYTRICHUlM caule ramofo, antheris fubfef- 

 filibus fparfis, calyptris ftriatis furfumve pilofis. 

 W.WiU.firiatum. Lin, Sp.pl. 1579 (-D///^^. mufa 

 t. 55-/. 8. 9. 10 opi, Moris.hiji.f. 15. t. 6.f. 13. 

 Vail. Paris, t. 27,/. 10. Oed. Dan, t. S^y.f, 3.) 



Striated Polytrichum. Anglis. 



Upon trunks of trees, wooden pales, and rocks 

 frequent. III. 



The ftalks are branched, and vary in height frona 

 half an inch to two inches, and are covered with 

 lanceolate acute flriated leaves. The filaments 

 are extremely Ihort, not longer than the anther^y 

 and are fometimes lateral, and fometimes ter- 

 nlinal. The anthers are ered and oval. The 

 calyptra is fmgle, conical, membranaceous, ftrt- 

 ared, tawny, and thinly covered with ereft, and 

 fomewhat rigid hairs, which fall off in tim^c, 

 and leave the calyptra apparently ftriated. The 

 epercuhni is yellow and pointed, and the rim of 

 the cnthera^ when burft is radiated with trian- 



gular dents. 



Thert 



