The Flora of Disko Island and Adjacent Coast of West Greenland. 77 



A southern type without southern limit in Greenland; north 

 of the area only twice observed: 70°28' (Vh.) and 70°25' (P.j. 



Usually abundantly flowering, but during cold summers and in 

 great lakes, in which the winter-ice does not thaw till far into the sum- 

 mer, the flowering may fail to take place. Fructificates when flowering. 



f. terrestris. 



In moist soil among tall Carices^ at the horder of a little lake in 

 Blæsedalen 69°17' Disko, in which the above mentioned normal Green- 

 landic forms occurs, a terrestrical form was observed with finely dis- 

 sected leaves, sections linear, and rather rigid and considerably shorter 

 than those of the normal form. Was just flowering Aug. 1913 (Th. P. !). 



J. 148. Ranunculus divaricatus ScHRANK. New to Greenland! 

 (Conf. Gelert: Bot. Tidsskr. 19 p. 27 f. pygmaea). 



A rather deviating form was observed in a pond in the great valley 

 from the head of Nordfjorden about 69°55'. The stalks and submerged 

 leaves deep reddish brown, not fresh green-coloured as in the preceding. 



With numerous floating leaves, varying from 3 — 4 lobed 

 with lobed sections, gradually to pluridivided with linear sections. The 

 underside subpubescent. Submerging leaves capillary, not or only 

 slightly collapsing when withdrawn from the water. 



With some hesitation I have classified this plant under the name 

 given above, as the form of the leaves sheaths and the floral parts 

 refer it to R. divaricatus, the flowers were somewhat larger and more 

 showy than in the preceding. This variety was heretofore not recorded 

 from Greenland neither from any arctic country. 



The plant was growing very vigorously. In some parts of the pond 

 the surface of the water was quite covered by the floatingTeaves and 

 fair white flowers (Th. P. & P.). 



Both species hibernate under and enclosed in ice. 



T 149. Ranunculus affinis R. Br. Simmons: Ellesm. p. 101. 



Only once observed within the limits of the area at Arssalik, 67°30' (Korn.). 

 Another time collected in S. Strømfjord a little south of our area (Jens.). These 

 occurrences are quite isolated and outside the extension of the species. 



High-arctic type, otherwise known from North- and East Greenland. 



± 150. Ranunculus acer L. 



In berb-mats and copses. 



Præstefjældet at Holsteinborg ()6°55' (W. & H.). 



