217 



In arranging the plants I have followed Lange' s "Con- 

 spectus Flora Groenlandica" (Meddelelser om Grönland III) by 

 reason of the comparison with this fundamental work though 

 it has become antiquated in several respects (f. inst. the main- 

 tenance of Apetalae as a special group). I have also followed the 

 nomenclature of Lange as far as possible, and I have innovated 

 only where newer works have necessitated my doing so. These 

 innovations are greatest within the family Cruciferae where I 

 have followed Gel erf s revision for the genera Draba and 

 Cochlearia, Composifae, determined by Amanuensis Dahls tedt 

 in Stockholm, Cyperaceae, determined by Inspector of the Bo- 

 tanical Museum at Copenhagen, C. H. Ostenfeld, the other 

 orders of Monocotyledones ana Filices, where the limitation of the 

 species stated in "Flora Arctica" has been followed. In several cases 

 especially when determining the large genera I have not been 

 content with the result obtained, but I have been obliged to stop 

 at what I considered a preliminary position, as the systematising 

 cannot be final, until the plants have been cultivated and ob- 

 served continually through years in the arctic countries. There 

 is now every prospect of this going to be done at the new 

 established Danske Arktiske Station in Disco, and it is my 

 hope that also systematic questions will be treated there. 



In composing this list I have besides those cited in Lange's 

 Conspectus p. XVI ff. employed the following works: 



Berlin: Kärlväxter insamlade under den svenska Expeditionen til Grönland 

 1883. Öfversigt af Kungl. Vetenskaps-Akademiens Förhandlingar, 

 No: 7, p. 17. 



Engler und Prantl: Die natürlichen Pflanzenfamilien. 



Gelert: Notes on arctic Plants. Botanisk Tidsskrift 21. Bd., 3. Hefte. Kø- 

 benhavn 1898. 

 — Studier over Slægten Batrachium. Botanisk Tidsskrift 19. Bd. p. 7. 

 København 1894. 



Gunnar Andersson & H. Hessel m an: Bidrag till Kännedomen om 

 Spetsbergens och Beeren Eilands Kärlväxtflora. Bihang t. К. Svenska 

 Vet. Akad. Handl. Bd. 26. Afd. III. No: 1. 



Hartz, N. : Fanerogamer og Karkryptogamer fra Nordøst-Gronland с. 75° — 

 70° N. Br. og Angmagsalik с. 65° 40' N. Br. Meddelelser om Grøn- 

 land 18. Hefte. 



