364 bryacejE 



XXXI. Orthotrichum Heclw: musc: II. p. 96. r= Brid: 

 bryol: univ: I. p. i6g. tab: III. f. 4. = Spr: syst: 

 n. 33^44. = Brachjtrichi , Grimmioe, Weissice, Bryi, 

 Poljtrichi, Hypni spec: nonnulia) quorund: (Inler 

 Acrocarpos peristomos Brid:). 



)) Seta terminalis. Peristom: siniplex vel duplex ; 

 )) exter: dentibus 8. trilineatis vel i6. unilineatis la- 

 )) tiusculis per paria approximatis 5 inter: ( quando 

 )) extat) ciliis 8-16. tcneris linearibus. Calyptr: mi- 

 )) trseformis sursum pilosa vel rarius glabra. )) 



Obs: Genus stirpibus ditissiraum (34- ex Spr:), nec 

 tamen in alia genera dividendum ne affinitates ex ha- 

 bitu prjEsertim fere proprio disrumpantur^ plantse ar- 

 borum parasiticae erecfse Ccespitosae ssepe pulvinatag per 

 orbem sparsse prassertim europsse. 



Secl: I. 



Peristomio simplici (^Brachytrichiim). 



^ I. O. anomaluin i=- Hedv^: musc: II. p. 102. t. 

 37. = Spr: syst: IV. i83. = Bals: et Denot: prodr: 

 p. 167. O. saxalile Brid: bryol: univ: I. p. 276. Bryum 

 striatum var: ^ et 7 L. sp: i58o. Dill: musc: t. 55. 

 f. 9. (^Eur: fere tota , Amer: septentr: Pedcm: ad saxa 

 rauros arborumque truncos passira; speciatira in col- 

 libus Taurin: ad saxa Re fl: tor: II. p. 196. Balb: el: 

 p. 6. sub O. saxatili). Erectum fastigialo-ramosum , 

 folia ovato - lanceolata margine reflexo nervo evane- 

 scente, sela exserta, capsula oblonga laadem sulcata 



