30O CARDOT AND THERIOT [34] 



Hypnum uncinatum forma breviseta Ren. in litt. 



From Skagway (Canby, 842 in part) ; Sitka (Trelease, 1938; Co- 

 ville and Kearney, 898) ; Kodiak (Trelease, 2058). 



Hypnum uncinatum forma plumosa Ren. in Husn., Muscol. gall., 



P- 378. 



Hypnum uncinatum plumosum SCH. Syn., ed. I. p. 612. 



From Indian Camp, Yakutat Bay (Brewer and Coe, 642) ; Dis- 

 enchantment Bay (Trelease, 1957) ; Point Gustavus (Coville and 

 Kearney, 753 in part) ; Yukon River (W. H. Dall, in 1867) ; Port 

 Clarence (Brewer and Coe, 672 ; Trelease, 2014) ; St. Matthew Is- 

 land (Trelease, 1887 in part, 1888 in part) ; Hall Island (Trelease, 



2133)- 



Hypnum uncinatum plumulosum Br. eur., fasc. 57-61, p. 31, pi. 



20, fig. r , I, 2. 



From Orca (Trelease, 1943) ; Indian Camp, Yukutat Bay (Brewer 

 and Coe, 643 ; forma crassa ad var. polare accedens) ; Port 

 Clarence (Trelease, 1969, 1970, 1972) ; St. Lawrence Island (Tre- 

 lease, 1982); St. Matthew Island (Trelease, 2163) ; Hall Island 

 (Trelease, 1967); Plover Bay, Siberia (Trelease, 1977). 



Hypnum uncinatum polare Ren. var. nov. 



Habitu varietati plumulosum simile, sed rete basilari laxiore paren- 

 chymatoso, cellulis mediis brevioribus, magis chlorophyllosis. 



From St. Matthew Island (Trelease, 2159); Plover Bay, Siberia 

 (Trelease, 1978). 



Hypnum uncinatum subjulaceum Br. eur., loc. cit., fig. ,1,2, forma 

 orthothecioides Ren. in Husn. Muscol. gall., p. 378. 

 From Bailey Harbor (U. S. S. Albatross Exped.) ; Mist Harbor, 

 Nagai Island (U. S. S. Albatross Exped.) ; Yakutat Bay (Trelease, 

 2026) ; Kodiak (Trelease, 1926, 1927) ; St. Paul Island (Trelease, 

 1975, 1985; J. M. Macoun) ; Hall Island (Trelease, 1966); Plover 

 Bay, Siberia (Trelease, 1976; Coville and Kearney, 1851). 



Section CRATONEURON Sulliv. 



Hypnum filicinum Linn. Spec, pi., p. 1125. 



From Yakutat Bay (Trelease, 1818) ; Hidden Glacier Inlet (Tre- 

 lease, 1814); Disenchantment Bay (Trelease, 1825, 1955, 2511); 

 Head of Russell Fiord ; (Coville and Kearney, 956) ; Muir Glacier 

 (Trelease, 1756, 1792, 1807). Several forms. 



