Or THE FOBTYOOXTH PAKALLEL OF LATITUDE. 41 



S. circinalis, Hook. Muse. Exot. 1. 107. 

 Hab. Vancouver Island, Lyall. 



S. plumifer, sp. nov. Dioicus, caespitosus, ramis procumbentibus, 

 ramulis approximatis plumiformi-pinnatis, foliis falcatis secundis e basi 

 latiore subovato-lanceolatis sensim tenuiter angustatis hamatis sic- 

 citate subplicatis, nervis tenuibus brevibus, marginibus inferne reflexis 

 integerrimis, in ramulinis apice serrulatis, cellulis ad angulos paucis 

 abbreviatis subobscuris, superioribus elongatis angustis, perichaetialibus 

 elongatis erectis pallidis late lanceolato-subulatis apicibus serrulatis, 

 theca in pedunculo elongato longe cylindracea suberecta curvata, 

 operculO brevi subulato rostrato, peristomio dentibus pallidis teneris, 

 interno tenero processibus latiusculis perforatis ciliis binis sequilongis 

 angustis interpositis in membrana alte exserta. 



Hab. N. America, Drummond ; Canada, Shepherd; Columbia, Douglas; 

 N.W. coast of America, Douglas and Menzies ; Pack River, Lyall. 

 Very common on trees and on the ground in British Columbia, Lyall; 

 Vancouver Island, Lyall. 



Shining yellowish green, becoming in age pale brown, more 

 slender than H. imponens, and in habit approaching more to H. 

 crista castrensis. In its narrow glossy leaves, long curved capsule, 

 and rostrate operculum it is sufficiently distinct from H. imponens 

 and H. liamulosum. This maybe the H. subimponens, Lesq.; but 

 the operculum is different from that described in the short account 

 of the species. 



S. crista castrensis, Linn. 

 Hab. Saskatchewan, Bourgeau. 



S. robustus, Hook. Muse. Exot. t. 108. 

 Hab. Fort Colville and Pack River, Lyall. 



Very few specimens, which give no further information as to 

 the habit of the species. 



Belonging to this group are also — 



S. complexus, sp. nov. Dioicus, late casspitosus, ramis pinnatis, foliis 

 secundis e basi latiore ovato-lanceolatis hamatis concavis nervis binis 

 brevibus marginibus subiutegerrimis, cellulis ad angulos pluribus 

 abbreviatis subquadratis obscurioribus, superioribus elongatis angustis 

 apicibus quasi prominulis, perichaetialibus elongatis erectis oblongis 

 subulatis, internis lanceolatis subito subulatis subserrulatis plicatis, 

 theca in pedunculo rubro cylindracea insequali inclinata, peristomio 

 dentibus flavis e medio subulatis, interno processibus angustis ciliis 

 binis interpositis. 



Hab. On rocks between Fort William and Cumberland House, British 

 N. America, Richardson. 



