— 282 — 



This low eastern part of the island shall be described at first. 

 As the terrain rises a little above the Juncus-bog, the mosses 

 become extremely luxuriant. Sphagnum totally disappears, but 

 Polytrichum grows superfluously plenteous and forms a wide, un- 

 divided cushion of mosses, which covers the greater part of the 

 east of the island. The stems of Polytrichum have as a rule a 

 length of about 20 cm. The vascular plants are few and grow 

 sparingly. Juncus filiformis is decreasing, while Agrostis canina 

 becomes the most common species, although also this species 

 only grows rather scanty. It is found in the form with subterranean 

 runners. Several runners have until seven etiolated leaves, before 

 they bend up and wear green leaves. This facies is shown in 

 Table III G. The growth-forms are the same as in the former facies. 

 Among 50 squares two were destitute of vascular plants. 



In the northeastern corner, where the terrain rises a little, the 

 vegetation of mosses is somewhat weaker. Agrostis canina has 

 here shorter runners, and numerous chamæphytes grow here on 

 the rather dry peat-soil. The spot is however during the whole 

 forenoon shaded by the alder-wood. D of Table III shows this 

 facies: On a little spot heath is formed of Empetrum, Vaccinium 

 vitis idæa and Calluna. 



Regarding the vascular plants the facies of vegetation shown 

 in Table III A— G are formed of the same growth-forms. Never- 

 theless they must be divided into two formations. The first (III A) 

 is a formation of evergreen, diageic herbs. The mosses are 

 scanty. The soil is mud. The second formation (III. B and G., IV A) 

 is a Polytrichum -bog, where the vascular plants are more or 

 less sparingly sown. The soil is peat, formed of the mosses. 



Table IV. 



Chamæphytes 



Vaccinium Vitis idæa 



Aira flexuosa 



Calluna vulgaris 



Veronica chamædrys . 

 Veronica officinalis . . 



A 



B 

 10 



G D 

 2 105 



30 

 25 

 50 



10 



Hemicryptophytes . . . 



Agrostis canina . . . 



Festuca rubra 



Poa pratensis 



Galium palustre . . . 

 Galium uliginosum 



134 



40 

 42 



353 



22 

 18 

 16 



2 



109 



4 

 10 



24 



238 

 15 

 39 



21 



