181 



:agamst the direct agency of the sea and owing to this 

 circumstance the sandhillformation here is rather small. 

 -Amrum and Sylt on the other hand have a conside- 

 rable sandhillformation towards the west, and Sylts two 

 Jong peninsulars Hörnum and List are quite crowded 

 with sandhills. Like the interior of Føhr, the interior of 

 Amrum and Sylt consists of drift. On the Qastern side we 

 find new formations of unembanked marshland, but this is 

 rather sandy as might have been expected coundering the 

 nearness of the sandhills and the inundations to which it is 

 exposed. On Komø the drift nowhere crops up to the 

 ;surface.. Like Fanø and Manø, Romø is low throughout, 

 .and the greater part of it is crowded with sandhills, which 

 are here and there interspersed with intervening valleys 

 end far-stretching flats. I shall not however dwell on 

 matters concerning the geognostical nature of the North- 

 Frisian Islands but refer to Schiøtz*) and Buchenau,**) and 

 if special details are required, they are to be found in 

 -Meyens monograph.***) • • 



Wishing to facilitate a comparison of the Flora of the 

 North-Frisian Islands with that of the adjacent mainland I 

 .here discriminate between a mar-sh-, a sandhill, -a bog- 

 .and a fresh-water-vegetation and finally a vegetation on 

 the high, hilly drift coupled with the inconsiderable re- 

 mainder of .a wood-vegetation, which is still to be found 

 'on these islands. The marsh-vegetation is rather uninte- 

 Testing, as it is here as elsewhere composed of a few spe- 

 cies. Statice scanlca thrives luxuriantly throughout the- 

 marsh-district and is quite a feature in the flora, especially 

 when flowering it gives a violet appearance to many a tract; 



*) Schiøtz: Beretning om en botanisk Rejse etc. (Videnskab. Meddel. 



fra den naturhist. Forening, Kjøbenhavn 1860, Pag. 117). 

 *'-^) Buchenau: Vergleichung der nordfriesischen Inseln mit den ostfrie- 

 sischen in floristischer Beziehung. (Alliandl. Naturw. Verein, Bremen, 

 Bd. IX, Pag. 3ai— 384). 1887. 



Meyen: Geognostische Beschreibung der Insel Sylt. (Abhandl. zur 

 geolgsch. Specialkarte von Preussen u. d. thüringschen Staaten, Bd. 

 .1; Pag. 650) 



