OP THE FORTY-XINTH PARALLEL OF LATITUDE. 45 



L. delicatula {Linn.). 

 Hab. Saskatchewan, Bourgeau. 



L. crispi folia, Hook. Musci Exot. t. 31. 



Hab. British Columbia and Pend Oreille River, Lyall; Vancouver 

 Island, Wood. 



Trachypus, Schv. 



T. nigrescens, (Neckera) Sw. 



Hab. Lake Huron, in fruit, Todd ; also sent from Canada West, Emery, 

 in Herb. Miles. 



The occurrence of this species (which seems to be precisely the 

 same as Swartz's, from a specimen in Herb. Hooker.) in a country 

 so much further north, was at first regarded with some suspicion, 

 but this is now entirely removed by the specimens recently col- 

 lected by Mr. Emery. 



LEUCODONTACEiE, Mitten, Musci Ind. 



Hedwigia, JEhrh. 

 H. ciliata, Ehrh. 

 Hab. Mooyie River (a branch of the Kootenay), British Columbia, Lyall. 



Hedwigia pilifera, sp. nov. Monoica, ramis ascendentibus laxe 

 caespitosis dichotome divisis ramulis superioribus abbreviatis, foliis 

 subsecundis ovatis ovato-acuminatisque acumine diaphano, foliis 

 ratnulinis (flagelliformibus) pilo longo flexuoso terminatis marginibus 

 integerrimis revolutis, cellulis parvis breviter oblongis inferioribus 

 paululo longioribus basi fuscis dorso papillosis, perichsetialibus erectis 

 longioribus ovato-lanceolatis, theca in pedunculo gracillimo trilineari 

 subglobosa setate evacua sub ore amplo contracta circiter decempli- 

 cata, calyptra elongata cucullata fusca laevi. 

 Hab. Vancouver Island, on rocks, Lyall. 



A little more slender than H. ciliata, Ehrh., but agreeing very 

 nearly with it in general appearance. The younger portions of the 

 stems are of a yellowish green, the older brown. The fruitstalk 

 is very slender and pale red. The capsules, which are all old and 

 empty, are contracted below the mouth, and the fruitstalk is 

 affixed to their base without an attenuated neck. 



This species has been here referred to Hedwigia, although it 

 belongs to that small group of species which has been named by 

 M. Schimper Hedwigidium, differing from Hedwigia, as originally 

 founded by Ehrhart on H. ciliata, in the more cucullate calyptra 

 and the presence of flagelliform shoots ; these last are represented 

 in H. pilifera by short ramuli, with leayes having very long hair 

 points, but in all the specimens these ramuli are not decurved, 



