THE MOSSES OF ALASKA 327 



On other specimens, coming from Vancouver Island, the crests are 



more generally wanting ; however, they are sometimes found and the 



leaves often bear sparse teeth on the back toward the apex; moreover, 



the nerve is always lamelliferous on both sides, at least in the upper 



part. 



Oligotrichum aligerum Mitt, in Journ. Linn. Soc, vin, p. 48, 



pi. 8. 



From Kodiak (Brewer and Coe, 658). 



Oligotrichum integrifolium Kindb. in Rev. bryol., 1894, p. 40. 



O. hercynicum var. latifolium C. Mull. & Kindb. in Macoun, Cat. Can. pi., 

 vi, Musci, p. 149. 



From St. Lawrence Island (J. M. Macoun). New to Alaska. 



Mr. Kindberg has attributed this moss to O. hercynicum typicum, 

 but it certainly belongs to his O. integrifolium, characterized by its 

 broader leaves, smooth and entire on the back, and by the cells of the 

 leaf-areolation which are much larger; characters which appear to 

 us sufficient to admit of a specific distinction. 

 Psilopilum arcticum Brid. Bryol. univ., 11, p. 95. 



From Port Clarence (Trelease, 21 13, 21 14, 2526) ; St. Paul Island 

 (J. M. Macoun) ; St. Matthew Island (Coville and Kearney, 2125). 



The specimens from St. Matthew Island have their stem-leaves a 

 little longer than those of the European specimens, their basilar cells 

 with thicker walls and their perichastial leaves hardly different from 

 the comal ones, and thus almost exactly agree with Catharinea (Psi- 

 lopilum') tschuctschica C. Mull., which does not appear to us a 

 good species. 

 Pogonatum capillare dentatum Lindb. in Act. Soc. Sc. Fenn., 1872, 



p. 266. 

 Polytrichum dentatum Menz. in Trans, of the Linn. Soc, IV, p. 80, pi. 7, f. 4. 



From Juneau (Trelease, 1656; Brewer and Coe, 6910, 693, 695; 

 Coville and Kearney, 583 ; Setchell, 1230 ; Canby, 435, 436 in part) ; 

 Port Wells (Trelease, 1654) ; Kodiak (Trelease, 1653) ; Douglas 

 Island (Trelease, 1657) ; St. Paul Island (J. M. Macoun). 



Pogonatum de7ttatum (Menz.) Brid. is but a western race of P. 

 capillare, characterized by having slenderer stems than those of the 

 type, and by its pedicel which is not usually so flexuous. 

 Pogonatum contortum Lesq. in Mem. Calif. Acad. 1, p. 27. 

 P. erythrodontium Kindb. in Macoun, Cat. Can. pi., vi, Musci, p. 150. 1 



*As regards this synonymy, see Cardot, Etude sur la flore bryologique de 

 PAmerique du Nord. Revision des types d'Hedwig et de Schwaegrichen ; in 

 Bull, de l'herb. Boissier, vn, pp. 366-368. 



