346 



CARDOT AND THERIOT 



Canby, 437, 448) ; Hall Island (Trelease, 19S9) ; St. Paul Island (U. 

 S. S. Aldaiross Kxped.) . 



HYLOCOMIUM TRIQUETRUM BERINGIANUM var. nov. 



Colore lutescente foliisque erecto-imbricatis, subhomomallis, minus 

 papillosis distinctum. 



From Hall Island (Trelease, 19S9 in part ; Coville and Kearney, 

 2059). 



Hylocomium rugosum De Not. Epil., 99. 

 From Skagway (Canby, 4S3 in part). 



POSTSCRIPT. 



Note i . — Since the completion of this paper for the press, in March, 

 1901, a very important catalogue of the bryophytes of the Yukon, 

 comprising 34 hepatics, 7 sphagna, and 332 mosses, has been published 

 by Mr. R. S. Williams, in the Bulletin of the New Tork Botafiical 

 Garden. Mr. Williams's list includes a large number of mosses that 

 are here indicated as new to Alaska. The following species, however, 

 to the nvmiber of fifty, are not found in Mr. Williams's list : 



Rhabdoweisia fugax, 



Aongstroemia longipes, 



Dicranella grevilleana, 



Dicranum anderssonii, 



Hypnum callichroum, 



H. dieckii, 



H. subeugyrium, 



D. starkei, 



D. albicans, 



D. groenlandicum, 



D. neglectum, 



D. howelHi, 



Dicranodontium longirostre, 



D. aristatum, 



Ditrichum homallum, 



Barbula aciphylla, 



Grimmia maritima, 



G. elatior forma?, 



Amphoridium mougeotii, 



Orthotrichum arcticum, 



Tayloria tenuis, 



Splachnum luteum, 



Philonotis macounii, 



P. capillaris, 



Meesea tschuctschica. 



Webera annotina, 



Bryum bimum, 



B. pallens, 



Mnium insigne, 



M. nudum, 



Aulacomnium androgynum, 



Oligotrichum integrifolium, 



Fontinalis patula, 



Ptervgophyllum lucens?, 



Orthothecium intricatum, 



Pseudoleskea ati^ovirens, 



P. stenophylla, 



Brachythecium nov?e-angli?e, 



B. asperrimum, 



B. plumosum, 



Eurhynchium stokesii, 



E. oreganum, 



Rhynchostegium serrulatum, 



Plagiothecium sylvaticum, 



P. roeseanum, 



P. muehlenbeckii, 



P. elegans, 



Amblvstegium serpens, 



A. varium, 



Hylocomium umbratum. 



