210 



Gymnandra Stelleri Cham. & 



Schlecht. 

 Poa arctica R. Br. 

 Aira caespitosa L. var. arctica. 

 Alopecurus alpinus Sm. 

 Luzula hyperborea R. Br. 

 Stellarin longipes Goldie ^-ar. 



Edvjardsii T. & G. 

 Cerastium alpinum L. 

 Anemo?ie pari'iflora ]\Iichx. 

 Papaver nudicaule L. 

 Draba alpina L. 

 Cochlearia officinalis L. 

 Saxijraga flagellaris Willd. 

 Saxifraga stellaris L. var. com- 



osa Poir, 



Saxifraga sileniflora (Hook.) 

 Sternb. 



Saxifraga hieracifolia Waldst. 

 &Kit. 



Saxifraga rivularis L. var. hy- 

 perborea Hook. 



Saxifraga bronchialis L. 



" serpyllifoliaFursh.. 



Potentilla nivea L. 



" frigida Vill.? * 



Armeria macrocarpa Pursh. 

 " vulgaris Willd. 



Artemisia borealis (Pall.) Willd. 



Nardosmia frigida Hook. 



Saussurea monticola Richards. 



SOME FARTHEST NORTH LICHENS AND MOSSES OF 



THE PEARY ARCTIC EXPEDITION TO 



GR.\NT LAND IN 1906 



By R. S. Williams 



This small collection comes from near the known northern 

 limit of vegetation, namely the north shore of Grant Land, 

 N. Lat. about 82° 27' to 82° 30' and is chiefly interesting for 

 that reason as the species are all common and widely distributed 

 in somewhat lower latitudes. Quite a number of flowering 

 plants occur in the same region, some 22 species being listed by 

 Dr. Rydberg for Grant Land, see Torreya 11: 249-259. 1911, 

 and Torreya 12: i-ii. 1912. 



The cryptogams were sent to the Botanical Garden by the 

 American Museum of Natural History, being obtained by Dr. 

 L. J. Wolf in July, 1906, when a member of the Peary Arctic 

 Expedition. 



* "Potentilla emarginala, Pursh. A very dwarf form of this species from 

 Wrangell Land was inadvertently named Potentilla frigida in the list of Muir's 

 collection." (Note by Asa Gray in House Executive Document No. 44 (1884-85), 

 p. 191.) [Editor.] 



