1893.] NATURAL SCIENCES OF PHILADELPHIA. 215 



Poa arctica R. Br. 

 Poa nemoralis L. 



Uperuavik. 

 Poa pratensia L. 



Not in Dr. Burk's collection. Abundant in McCormick Bay. 

 At Disco it makes culms 18 inches to 2 feet. 



Trisetum sesquiflorum Trin. 



Collected only by myself. McCormick Bay. 

 Glyceria fluitans. 



Only by Dr. Burk. 

 Festuoa ovina L. var. brevifolia. 

 Festuoa ovina var. vivipara. 



At Godthaab, but growing only about six inches high. 

 Arctagrostis latifolia Griesb. 

 Elymus mollis Trin. 



Disco. Not in Dr. Burk's collection. At Atanekerdlut, reach- 

 ing three or four feet high along the Sea Beach. 



Equisetum arvense Lin. 

 Equisetum variegatum. 



Dr. Burk. 

 Woodsia ilvensis Br. 



Disco. In crevices of rocks. 

 Cystopteris fragilis Bernh. 



Disco. About 12 inch fronds, in crevices of rocks. Not in Dr. 

 Burk's collection. 



Nephrodium spinulosum Mul. 



Crevices of Rocks at Godthaab. Among the few things cultivated 

 by the Danes at Godthaab. Not in Dr. Burk's collection. 



Lycopodium annotinum L. 



Disco, reaching close to the edge of the ice cap. 

 Lycopodium Selago. ' 



Disco, reaching about two inches high. 



Lichens. 



The collection has been kindly determined by Dr. John M. Eck- 

 feldt. Those marked * were also collected in the first expedition by 

 Dr. Burk. f Collected only by Dr. Burk. 



