172 Aug. Hesselbo. 



6. Polytrichum alpinum L. 



Common; usually sterile and mixed with other mosses. Storm- 

 kap, fruiting. 



var. arcticum (Sw.) Brid. 

 Vester Elv, fruiting, 

 var. brevifolium (R. Br.) Brid. 

 Lille Snenæs, fruiting. 



7. Polytrichum gracile Dicks, 

 var. anomalum (Milde) Hagen. 



This peculiar form which, according to Hagen (Musci Norvegiae 

 horealis, p. 265) and to verbal information from C. Jensen, is com- 

 monly distributed in northern Scandinavia, was found by Vester 

 Elv intermingled in tufts of swamp-mosses such as Amblysiegiiim 

 reuolvens, A. sarmentosiim, Bryum neodamense, var. ovatiim, etc. 



The plants are as much as 8 cm. high, flaccid, with nearly 

 entire leaves (forma subintegri folia), but otherwise exactly resembling 

 Norwegian specimens. 



Polytrichum gracile has not previously been found in Greenland, 

 and its northern limit as hitherto known is at about 70° N. lat. in 

 Finmark. 



8. Oligotrichum laevigatum Wahlb. 



Vester Elv, sparingly intermingled in a tuft of Hepaticae, Ditri- 

 chum flexicaule, and other mosses (forma tenuis brevifolia). 



9. Cinclidium arcticum (Br. eur.) С M. 



Vester Elv, sterile; a few plants in a tuft of Gymnocybe turgida, 

 Meesea triquetra and Sphagnum. 



10. Cinclidium polare Bryhn. 



North side of Hyde Fjord among other mosses; sterile (Koch). 



11. Astrophyllum curvatulum Lindb. 



Vester Elv, sparingly among Gymnocybe turgida, Meesea triquetra, 

 and other mosses. Maroussia Island, a few plants in a tuft of Bryum 

 pendulum; in both places forma integrifolia. 



12. Astrophyllum orthorhynchum (Brid.) Lindb. 



Vester Elv, a few sterile plants in a tuft of Stereodon Bambergeri 

 and Ditrichum flexicaule. Lamberts Land, sterile (Koch). 



13. Timmia austriaca Hedw. 

 Lamberts Land, sterile (forma brevifolia). 

 var. papulosa v. n. 



The sheath-like part of the leaf papillose at the point of transi- 

 tion to the lamina. The leaf-margin coarsely denticulate at the 

 apex and indistinctly denticulate downwards. 



