189 



THE SOUTHERN PART (S.). 



Properly speaking only Sydero can be considered as belonging 

 to tilis part since Lille Dimon is still unexplored. Sydero, ab. 

 153 □ kilom., is the most soutliern and most isolated of the islands. 

 The mountains are low, not above 600 m., generally ab. 500 m. The 

 Island possesses 253 species and 29 varieties. Of these 281 forms : — 

 166 (ab. 597o) are c. 76 (ab. 27%) are suba. 



63 (ab. 22,5 7o) are w. c. 9 (ab.3,27o) are alp. arct. 



37 (ab. 13,170/0) are Atl. 



Of the species 69 (ab. 28%) are Hepaticae, besides 9 varieties. 

 Of these 78 forms : — 



36 (ab. 46%) are c. 18 (ab. 23%) are suba. 



23 (ab. 29%) are w. c. 4 (ab. 57o) are alp. arct. 



12 (ab. 15%) are Atl. 



Sphagna, 10 (3,95%) species and 3 varieties of these 13 forms 

 7 are c, 6 w. c. besides one suba. 



Musci frondosi 174 (ab. 69%) species, whereof 114 Acrocarpi and 

 60 Pleurocarpi, besides 17 varieties. Of all these 191 forms: — 



123 (ab. 64%) are c. 57 (ab. 307o) are suba. 



34 (ab. 18%) are w. c. 5 (ab. 2,62 7o) are alp. arct. 



25 (ab. 13%) are Atl. 



The foUowing 15 species and varieties have not been found on 

 the otlier islands: — Porella rivularis YRv.færoensis, Kantia Calypogea, 

 Plagiochila asplenioides var. heterophylla, Jiingermania barbata, Blasia 

 pnsilla, Sphagnum papillosiim var. sublaeve, AstrophyUiim iindiilatnm 

 var. ciispidatiim , AstrophyUiim stellare, Philonotis capillaris, Pohlia 

 gracilis, Pohlia niitans var. teres, Campylopiis Schimperi\ar. ftagellifera, 

 Amhlysteghim fliiitans var. pseudostramineiim , Hypnum hians (var. 

 distans), Entodon orthocarpiis. 



THE CENTRAL PART (C), 



ab. 241 n kilom., consists of Store Dimon, Sando, Hesto, Nolso, the 

 southern part of Stromo to a line drawn between Syderdal and 

 Sund, and the southern part of Ostero to the valley of Toftevatn. 

 The islands Skuo and Kolter, which also belong to part C, are not 

 yet explored. This part resembles part S. in its proportional!}^ low 

 mountains and its extensive tracts of low and generally level ground. 

 The southern part of Ostero, the environs of Thorshavn on Stromo 



