105 



because tlie localilics in Ihe middle of the group of islands are 

 more shellered from the winds. 



Unhke the northern section, the southern se et ion conlains 

 many more temperate PZuropean and x\tlantic forms, but this section 

 is not quite so homogeneous in all its parts, Sydero in parlicular 

 occupying a speeial, extreme position. The following piants have 

 been met with only in the southern section: — 

 Aspleniiim Adiantum nigrum, Ost. 



— Trichomanes, Ost. 

 Anagallis tenella, Ost., Vaago. 

 Viola tricolor, Str., Sando. 

 Riimex crispiis, Str., Sando, Syd. 

 Arcliillea Plarmica, Str., Syd. 



Lathynis pratensis, Str., Ost., Vaago, Sando, Syd. 



Potamogeton natans, Str., Ost., Vaago, Sando, Syd. 



Lobelia Dortmanna, Sando. 



Primula acanlis, Sando. 



Malaxis paludosa, Sando. 



Potamogeton graminens x perfoliatus (P. nitens), Sando. 



Psamma arenaria, Sando. 



Agropyrnm jnnceam, Sando, Syd. 



Drosera rotnndifolia, Sando, Syd. 



Polygonum amphilnum, Sando, Syd. 



Myosotis repens, Syd. (re). 



Plantago coronopns, Syd. 



Heleocharis multicanlis, Syd. 



Juncus ohtusiflorus. Syd. 



Catabrosa aquatica, Syd. 



Zostera marina, Syd. 



Rnppia maritima, Syd. 



Potamogeton fdiformis, Syd. 



— prælongas, Syd. 

 Orchis mascula. Syd, 

 Alsine verna, Syd. 



Scilla verna. Syd. (re), at one place on Ost., see above. 

 As may be seen from this list, in which the name of the island 

 or islands where the species occur is given immediately afler that 

 of each species, some are found distributed over the southern parts 

 of Stromo, Vaago and Østero, as well as over Sando and Sydero, 

 others are peculiar to Sando, others, again, to Sydero and lastly 



