388 MoRTPN p. Porsild 



(3) While the hemiarctic element in the district in question still 

 constitutes ahout ^/;! of the flora, on Hare Island it forms only ahout 

 ^4, in spite of the more southern situation of the latter. The reason 

 should be sought for in the unfavourable climate and in the diffi- 

 culty of receiving a supply of southern species from the neighbour- 

 ing districts. 



Godhavn. Sept., 1!)11. 



Literature. 



Abromeit, J. : Botanische Ergebnisse der von der Gesellschaft für Erdkunde zu Berlin 

 unter Leitung Dr. v. Drygalski's ausgesandten Grønlandexpedition nach Dr. Van- 

 höffens Sammlungen bearbeitet. (Bibliotheca Botanica 42, Stuttgart, 1897). 



Hart, H. C: On the British Polar Expedition of 1875—76. (Journ. of Bot., London, 

 1880). [Was not available, cited from Lange, Conspectus] 



Holm, Th., Beiträge zur Flora Westgrønlands (Engler's Botanische Jahrbücher, VIll, 

 1887). 



Lange, Joh.: Conspectus florae Groenlandicae. (Meddelelser om Grønland, 3, 1880). 



— idem. Pars secunda. (ibid. 1887). 



— Bemærkninger om de af Expeditionerne i Aarene 1880 — 85 samlede Karplanter 

 fra Vestkysten af Grønland, (ibid. 8., 1889) [in this Steenstrup's piants]. 



— do. do. 1886-87. (ibid.) [in this Ryder's plants]. 



Nathorst, A. G.: Botaniska anteckningar från nordvestra Grønland, (üfv. К. Vet. -Ak. 



Förh., 1884, No. 1). 

 Ostenfeld, С. H.: Flora Arctica, etc.. Part 1 by O. Gel er t and C. H. Ostenfeld, 



Copenhagen, 1902. 



— Vascular Plants collected in Arctic North America bj' the Gjöa Expedition. (Vi- 

 densk.Selsk. Skr. Math. Naturv. Kl., 1909, No. 8. Christiania, 1910.) 



Ostenfeld. С. H. & Lundager, Andr. : List of Vascular Plants from North-East Green- 

 land. (Meddel, om Grønl., 43, 1910). 



Porsild, M. P.: Bidrag til en Skildring af Vegetationen paa Øen Disko, etc. (Meddel. 

 om Grønl. 25. 1902). 



— The Plant-Life of Hare Island off the coast of West Greenland. (Arbejder fra 

 den danske arktiske Station paa Disko, No. 3, 1910 . 



— List of Vascular Plants from the South Coast of the Nugsuaq Peninsula in West 

 Greenland (ibid.. No. 2, 1910). 



HosENviNGE, L. K. : Andet Tillæg til Grønlands Fanerogamer og Karsporeplanter. 



(Meddelelser om Grønl., 3, Forts. 3, 1892). 

 RowLEE, W. W. & Wiegand, k.M.: A List of Plants collected by the Cornell Party 



on the Peary Voyage of 1896 (Botan. Gazette, 1897). 

 Simmons, H. G. : The Vascular Plants in the Flora of Ellesmereland. (Rep. of the 



2. Norw. Arctic Exp. in the "Fram, ' 1898—1902, No. 2). 



— A revised List of the Flowering Plants and Ferns of North Western Greenland, 

 etc. (ibid. No. 16). 



