THE MOSSES OF ALASKA 



341 



HYPNUM SULCATUM STENODICTYON Ren. var. nov. 

 Hypnum sulcatum ?>CYi. Syn. ed., i, p. 699. 



A forma typica rete densiore cellulis angustioribus distincta. 

 From Muir Glacier (Trelease, 3019). 



Section Ptilium Sulliv. 

 Hypnum crista-castrensis Linn. Sp. pL, p. 1125. 



From Virgin Bay (Trelease, 2027) ; Sitka (Trelease, 2022) ; Kodiak 

 (Trelease, 2054; Coville and Kearney, 2339, 2261a); Mist Harbor, 

 Nagai Island (U. S. S. Albatross Exped.). 



Section Stereodon Brid. 

 Hypnum circinale Hook. Musci exot., pi. 107. 



From Juneau (Brewer and Coe, 69S) ; Yakutat Bay (Trelease, 

 2329); Farragut Bay (Trelease, 1935, 1936; Brewer and Coe, 61S, 

 633); Orca (Trelease, 1748, 1941, 1943 in part, 1944, 2250, 2500; 

 Setchell, 1210); Virgin Bay (Trelease, 2304); Sitka (Trelease, 

 1939, 1940; Coville and Kearney, 835; Setchell, 1257, 1267; Canby, 

 463; J. M. Macoun) ; Hot Springs (Trelease, 3345) ; Kodiak (Tre- 

 lease, 1945, 331 1 ; L. J. Cole) ; Wood Island (Brewer and Coe, 659, 

 660, 662) ; Prince of Wales Island (J. M. Macoun). 



We do not distinguish from II. circinale, H. seqtioieti C. Miill. in 

 Flora, 1S75, p. 91, the characters mentioned for the latter being in- 

 constant and of little importance. We must equally refer to H. cir- 

 cinale the Raphidostegiu7n pseudorecurvans Kindb. Not. on Canad. 

 bryol., 1S93, according to the specimens of the latter which were com- 

 municated to us by Mr. J. M. Macoun. 



As we have said elsewhere (Revue bryologique, 1890, p. iS, and 

 Hedwigia, 1893, P- ^75) ^^ ^^^^ ^ mistake to describe H. circinale as 

 being monoecious ; it is certainly dioecious, for on a hundred speci- 

 mens that we have had the opportunity of examining, we have never 

 found flowers of both sexes on the same stem. 

 Hypnum callichroum Br. eur., fasc. 57-61, p. 37, pi. 16. 



From Port Wells (Trelease, 1747); Orca (Trelease, 1749, 3261); 

 Yakutat Bay (Trelease, 1746); Head of Russell Fiord (Coville and 

 Kearney, 948 in part); Wrangell (Trelease, 2018); Port Etches 

 (J. M. Macoun) ; Sitka (Trelease, 2021). New to Alaska. 

 Hypnum alaskae Kindb. Not. on Canad. bryol., 1893. 



From Port Etches (J. M. Macoun). 



This species appears to be very close to the preceding, judging from 

 the small specimen we received ; however, it differs from it by its 



