The Flora of Disko Island and Adjacent Coast of West Greenland. 147 



Abiindantly flowering and fructificating. Probably always covered 

 by some snow during winter. 



Varying in size, broadness of leaves etc. according to the conditions 

 of the habitat. 



i 265. Campanula rotundifolia L. 



On similar spots as the preceding, but much more common. 



Widely distributed in West Greenland, without southern limit, 

 the northern limit may lie between 74° and 76°. 



Abundantly flowering and fructificating. Probably always covered 

 by some snow during winter. 



Varying very much. Whether the Greenlandic cycle of forms of 

 the collective species C. rotundifolia deserve to be united under a spe- 

 cial name, C. Gieseckeana (Vest.) Witas., I cannot say. On the other 

 hånd I am inclined to suppose that the different varieties recorded from 

 Greenland and provided with names are merely ecological forms, con- 

 nected through numerous transitions. The variety arctica of Lange 

 is the normal form, occurring on somewhat favourable spots in our 

 area. On exposed spots the piants are smaller, especially lower, whe- 

 reas the corolla is as large or even larger, than on the luxuriant form 

 from rock-shelves. On the most barren spots we find a low form also 

 with small flowers: var. uniflora Lange. 



XLVn. Compositae. 



V 266. Erigeron compositus Pursh. 



On gravelly moraines and barrens, in sandy river-beds and deltas, 

 descended from the highland, 



Disko: The northern part of the Waygat coast, common (P.), in the big valleys 

 and on the basaltic plateaus on the Northland (P.), Mellemfjord (Th. Fr.). — Hare 

 (P.). 



Mainland: Niigssuaq peninsula, common in the basaltic and sandstene area, 

 as well near the coast as on the hills and in the big valleys (P.). South hereof not 

 found till Claushavn, 69°6' (Bg.), Nordre Strømfjord at Eqaluarssuit, 67°36' (P. & E), 

 N. Isortoq (V.), Holsteinsborg district, near the colony and especially in the interior, 

 where it becomes rather common (P. & E.). 



Without doubt a northern type, probably without northern limit. 

 South of our area observed in the fjord-regions at 64° and 60° — 61°, 

 probably here descended from the highland. 



Abundantly flowering and fructificating. 



Often snowless in winter. 



10* 



