927 



with a salt-marsh^ in the south-eastern corner of the North-Sea, or 

 on the Kattegat and the Belts^. 



The dominant species for this Atropis association 



Gly- 



ceria maritinia, Pkintago maritima, Festiica rubra, Triglochin pahistre, 

 Agrostis stolonifera and Armeria; scattered among these are also 

 Cochlearia, Glyceria distans (on open spots), Leontodon autumnale, 

 var. Taraxaci, and Scirpiis pauciflorus. These together form a close, 



Fig. 1 



The salt-marsh in Trangisvaagfjord. In the niiddle may be seen two well-defined pools 

 »pans« filled with water. (From photo. by E. Warniing.) 



low carpet, interrupted in piaces by groups of taller, social, grass- 

 like piants, namely Heleocharis paliistris, Carex Lijngbyei, C. salina 

 and a large hybrid Carex (Carex-salina association). 



Heleocharis and others of the species named {e. g. Scirpus pauci- 



1 Compare f. inst. E. Warming 1890 and 1906, C. Raunkiær 1889, and A. 

 Mentz 1900. 



^ A similar association is recorded Ijy E. Warming (1888, p. 143 — 147) and 

 N. Hartz (1894, p. 24) in West-Greenland, and by H. Jonsson (1900, p. 52) in 

 West-Iceland. All three authors regard the presence of such a formation as un- 

 usual, exactly as is the case with regard to the Færoes. 



* Glyceria maritima, G. distans, and alHed species are frequently separated 

 under the generic name Atropis. This name seems to me to be more characteri- 

 stic for the association than »the zone of Andelgræs« used by E. Warming 

 (1890, p. 218), or his later term y> Glycerietum, Glijc. maritimaa (1906, p. 206). 



