332 TRELEASE 



graphical distribution of the species. Dr. Warnstorf has fur- 

 ther contributed two or three localities represented in his her- 

 barium by specimens recently collected in the Yukon region by 

 Mr. R. S. Williams. 



The present list includes 22 species and 19 additional varie- 

 ties, exclusive of minor forms of the latter, thus about doubling 

 the number of species known to me as Alaskan, or trebling the 

 number of distinguished forms. Of the forms listed, one only, 

 S. recurvum, which may really refer to the listed variety of that 

 species, rests solely upon published report. Two species, S. 

 angstroemii and S. balticum, are here for the first time recorded 

 as American. 



ALPHABETICAL CATALOGUE. 



Sphagnum acutifolium (Ehrh.) Russ. & Warnst. 

 HOOKER & ARNOTT, 133. ROTHROCK, 460. TURNER, 82. 



Sitka ; Kotzebue Sound. 



Dr. Warnstorf refers one specimen only to the typical form of the 

 species (McGrath, June 3, 1890, without locality further than 

 'Alaska'). The localities cited on authority may pertain to one or 

 other of the recognized varieties, rather than to the type. 



Sphagnum acutifolium pallescens Warnst. 



Sitka (Trelease, 1573). 



Sphagnum acutifolium rubrum (Briji.) Warnst. 

 J. MACOUN, 253. 



Sitka (Coville & Kearney, 895; Trelease, 1557); Hot Springs, 

 Baranof Island (Trelease, 1556) ; Biorka Island (Brewer & Coe, 631 ) ; 

 Orca (Coville & Kearney, 1342) ; Kadiak (Macoun, Sept. 22, 1891). 



Sphagnum acutifolium versicolor Warnst. 



Prince of Wales Island (Macoun, Sept. 30, 1891); Sitka (Coville 

 & Kearney, 894 ; Trelease, 1567) ; Kadiak (Trelease, 1570); Virgin 

 Bay (Trelease, 1558); Port Wells (Trelease, 1569). 



Sphagnum angstroemii Hartm. 



Hall Island, Bering Sea (Trelease, 1621). 

 Not heretofore reported from America. 



Sphagnum balticum Russ. 



Port Wells (Trelease, 1584, 1614). 

 Not heretofore reported from America. 



